/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/sssc12.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:14:42,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:14:42,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:14:42,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:14:42,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:14:42,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:14:42,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:14:42,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:14:42,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:14:42,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:14:42,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:14:42,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:14:42,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:14:42,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:14:42,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:14:42,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:14:42,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:14:42,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:14:42,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:14:42,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:14:42,303 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-Separate.epf [2021-06-05 10:14:42,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:14:42,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:14:42,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:14:42,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:14:42,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:14:42,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:14:42,327 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:14:42,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:14:42,328 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:14:42,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:14:42,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:14:42,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:14:42,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:14:42,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:14:42,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:14:42,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:14:42,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:14:42,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:14:42,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:14:42,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:14:42,329 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:14:42,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:14:42,329 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:14:42,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:14:42,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:14:42,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:14:42,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:14:42,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:14:42,573 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:14:42,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/sssc12.i [2021-06-05 10:14:42,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d396e0612/e9d2be98da4c4e2e9cee8040cc9bb240/FLAG97db58cef [2021-06-05 10:14:43,081 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:14:43,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i [2021-06-05 10:14:43,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d396e0612/e9d2be98da4c4e2e9cee8040cc9bb240/FLAG97db58cef [2021-06-05 10:14:43,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d396e0612/e9d2be98da4c4e2e9cee8040cc9bb240 [2021-06-05 10:14:43,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:14:43,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:14:43,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:14:43,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:14:43,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:14:43,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1abad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43, skipping insertion in model container [2021-06-05 10:14:43,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:14:43,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:14:43,778 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i[46865,46878] [2021-06-05 10:14:43,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:14:43,800 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:14:43,838 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i[46865,46878] [2021-06-05 10:14:43,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:14:43,920 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:14:43,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43 WrapperNode [2021-06-05 10:14:43,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:14:43,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:14:43,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:14:43,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:14:43,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:14:43,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:14:43,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:14:43,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:14:43,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... [2021-06-05 10:14:43,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:14:43,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:14:43,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:14:43,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:14:43,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:14:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:14:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-06-05 10:14:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-06-05 10:14:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:14:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:14:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:14:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:14:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-06-05 10:14:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:14:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:14:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:14:44,017 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:14:44,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:14:44,300 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-06-05 10:14:44,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:14:44 BoogieIcfgContainer [2021-06-05 10:14:44,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:14:44,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:14:44,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:14:44,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:14:44,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:14:43" (1/3) ... [2021-06-05 10:14:44,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573d4f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:14:44, skipping insertion in model container [2021-06-05 10:14:44,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:14:43" (2/3) ... [2021-06-05 10:14:44,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573d4f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:14:44, skipping insertion in model container [2021-06-05 10:14:44,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:14:44" (3/3) ... [2021-06-05 10:14:44,306 INFO L111 eAbstractionObserver]: Analyzing ICFG sssc12.i [2021-06-05 10:14:44,310 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:14:44,310 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:14:44,310 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:14:44,311 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:14:44,332 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,333 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,333 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,333 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,333 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,333 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,333 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,333 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,334 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,334 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,334 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,334 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,334 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,335 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,335 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,336 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,336 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,336 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,336 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,337 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,337 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,337 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,340 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,340 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,341 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,341 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,341 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,341 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,341 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,341 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,342 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,342 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,342 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,342 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,342 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,343 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,343 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,343 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,343 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,343 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,343 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,343 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,343 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,344 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,344 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,344 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,344 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,344 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,344 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,344 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,344 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,345 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,346 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,346 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,347 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,347 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,347 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,348 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,348 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,348 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,348 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,348 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:44,353 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:14:44,369 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 10:14:44,388 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:14:44,389 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:14:44,389 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:14:44,389 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:14:44,389 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:14:44,389 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:14:44,389 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:14:44,389 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:14:44,398 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 69 transitions, 143 flow [2021-06-05 10:14:44,430 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 373 states, 368 states have (on average 2.046195652173913) internal successors, (753), 372 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:44,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 373 states, 368 states have (on average 2.046195652173913) internal successors, (753), 372 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:44,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-06-05 10:14:44,443 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:44,444 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:44,444 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:44,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:44,451 INFO L82 PathProgramCache]: Analyzing trace with hash 591893579, now seen corresponding path program 1 times [2021-06-05 10:14:44,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:44,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001536867] [2021-06-05 10:14:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:44,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:44,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001536867] [2021-06-05 10:14:44,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001536867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:44,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:44,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 10:14:44,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401049748] [2021-06-05 10:14:44,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 10:14:44,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:44,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 10:14:44,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:14:44,671 INFO L87 Difference]: Start difference. First operand has 373 states, 368 states have (on average 2.046195652173913) internal successors, (753), 372 states have internal predecessors, (753), 0 states have call successors, (0), 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 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:44,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:44,714 INFO L93 Difference]: Finished difference Result 255 states and 451 transitions. [2021-06-05 10:14:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 10:14:44,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-06-05 10:14:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:44,724 INFO L225 Difference]: With dead ends: 255 [2021-06-05 10:14:44,725 INFO L226 Difference]: Without dead ends: 190 [2021-06-05 10:14:44,726 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:14:44,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-06-05 10:14:44,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-06-05 10:14:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 189 states have (on average 1.746031746031746) internal successors, (330), 189 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 330 transitions. [2021-06-05 10:14:44,759 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 330 transitions. Word has length 44 [2021-06-05 10:14:44,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:44,759 INFO L482 AbstractCegarLoop]: Abstraction has 190 states and 330 transitions. [2021-06-05 10:14:44,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:44,760 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 330 transitions. [2021-06-05 10:14:44,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 10:14:44,761 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:44,761 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:44,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:14:44,761 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:44,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:44,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1971830318, now seen corresponding path program 1 times [2021-06-05 10:14:44,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:44,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807120204] [2021-06-05 10:14:44,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:44,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:44,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807120204] [2021-06-05 10:14:44,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807120204] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:44,909 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:44,909 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:14:44,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596868256] [2021-06-05 10:14:44,910 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:14:44,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:44,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:14:44,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:14:44,911 INFO L87 Difference]: Start difference. First operand 190 states and 330 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:44,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:44,973 INFO L93 Difference]: Finished difference Result 262 states and 465 transitions. [2021-06-05 10:14:44,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:14:44,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-06-05 10:14:44,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:44,975 INFO L225 Difference]: With dead ends: 262 [2021-06-05 10:14:44,975 INFO L226 Difference]: Without dead ends: 262 [2021-06-05 10:14:44,976 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 47.7ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:14:44,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-06-05 10:14:44,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 230. [2021-06-05 10:14:45,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.7685589519650655) internal successors, (405), 229 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:45,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 405 transitions. [2021-06-05 10:14:45,000 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 405 transitions. Word has length 47 [2021-06-05 10:14:45,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:45,001 INFO L482 AbstractCegarLoop]: Abstraction has 230 states and 405 transitions. [2021-06-05 10:14:45,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:45,001 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 405 transitions. [2021-06-05 10:14:45,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:14:45,002 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:45,002 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:45,002 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:14:45,002 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:45,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:45,003 INFO L82 PathProgramCache]: Analyzing trace with hash 190025785, now seen corresponding path program 1 times [2021-06-05 10:14:45,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:45,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950924721] [2021-06-05 10:14:45,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:45,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:45,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950924721] [2021-06-05 10:14:45,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950924721] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:45,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118995772] [2021-06-05 10:14:45,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:45,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 10:14:45,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:45,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118995772] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:45,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:45,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-06-05 10:14:45,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935626453] [2021-06-05 10:14:45,338 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 10:14:45,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:45,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 10:14:45,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:14:45,339 INFO L87 Difference]: Start difference. First operand 230 states and 405 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:45,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:45,450 INFO L93 Difference]: Finished difference Result 326 states and 585 transitions. [2021-06-05 10:14:45,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:14:45,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:14:45,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:45,451 INFO L225 Difference]: With dead ends: 326 [2021-06-05 10:14:45,451 INFO L226 Difference]: Without dead ends: 326 [2021-06-05 10:14:45,452 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 100.5ms TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:14:45,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-06-05 10:14:45,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 286. [2021-06-05 10:14:45,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.7894736842105263) internal successors, (510), 285 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 510 transitions. [2021-06-05 10:14:45,470 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 510 transitions. Word has length 54 [2021-06-05 10:14:45,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:45,471 INFO L482 AbstractCegarLoop]: Abstraction has 286 states and 510 transitions. [2021-06-05 10:14:45,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 510 transitions. [2021-06-05 10:14:45,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:14:45,474 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:45,475 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:45,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-06-05 10:14:45,689 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:45,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:45,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1432195058, now seen corresponding path program 2 times [2021-06-05 10:14:45,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:45,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483160449] [2021-06-05 10:14:45,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:45,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:45,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483160449] [2021-06-05 10:14:45,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483160449] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:45,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827260636] [2021-06-05 10:14:45,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:45,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 10:14:45,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:14:45,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-05 10:14:45,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:46,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827260636] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:46,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:46,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2021-06-05 10:14:46,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81537934] [2021-06-05 10:14:46,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 10:14:46,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:46,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 10:14:46,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:14:46,043 INFO L87 Difference]: Start difference. First operand 286 states and 510 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:46,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:46,220 INFO L93 Difference]: Finished difference Result 382 states and 690 transitions. [2021-06-05 10:14:46,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 10:14:46,220 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:14:46,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:46,221 INFO L225 Difference]: With dead ends: 382 [2021-06-05 10:14:46,221 INFO L226 Difference]: Without dead ends: 382 [2021-06-05 10:14:46,222 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 132.9ms TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2021-06-05 10:14:46,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-06-05 10:14:46,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 342. [2021-06-05 10:14:46,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 1.8035190615835777) internal successors, (615), 341 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:46,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 615 transitions. [2021-06-05 10:14:46,231 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 615 transitions. Word has length 61 [2021-06-05 10:14:46,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:46,232 INFO L482 AbstractCegarLoop]: Abstraction has 342 states and 615 transitions. [2021-06-05 10:14:46,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:46,232 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 615 transitions. [2021-06-05 10:14:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 10:14:46,234 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:46,234 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:46,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:46,453 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:46,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:46,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1130357223, now seen corresponding path program 3 times [2021-06-05 10:14:46,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:46,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489523737] [2021-06-05 10:14:46,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:46,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:46,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489523737] [2021-06-05 10:14:46,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489523737] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:46,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445141988] [2021-06-05 10:14:46,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:46,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-05 10:14:46,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:14:46,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 10:14:46,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-05 10:14:46,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445141988] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:46,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:46,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-05 10:14:46,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67656766] [2021-06-05 10:14:46,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 10:14:46,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:46,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 10:14:46,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-06-05 10:14:46,882 INFO L87 Difference]: Start difference. First operand 342 states and 615 transitions. Second operand has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:47,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:47,423 INFO L93 Difference]: Finished difference Result 422 states and 765 transitions. [2021-06-05 10:14:47,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 10:14:47,424 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-05 10:14:47,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:47,424 INFO L225 Difference]: With dead ends: 422 [2021-06-05 10:14:47,424 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:14:47,424 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 566.5ms TimeCoverageRelationStatistics Valid=237, Invalid=953, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 10:14:47,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:14:47,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:14:47,425 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) [2021-06-05 10:14:47,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:14:47,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2021-06-05 10:14:47,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:47,425 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:14:47,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:47,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:14:47,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:14:47,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:47,641 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 10:14:47,643 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 10:14:47,643 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:14:47,643 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:14:47,644 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:14:47,644 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:14:47,644 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:14:47,644 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:14:47,644 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:14:47,644 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 10:14:47,645 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 69 transitions, 143 flow [2021-06-05 10:14:47,649 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 373 states, 368 states have (on average 2.046195652173913) internal successors, (753), 372 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:47,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 373 states, 368 states have (on average 2.046195652173913) internal successors, (753), 372 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:47,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 10:14:47,650 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:47,650 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:47,650 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 10:14:47,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:47,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1506265018, now seen corresponding path program 1 times [2021-06-05 10:14:47,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:47,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699686405] [2021-06-05 10:14:47,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:14:47,658 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:14:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:14:47,664 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:14:47,676 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 10:14:47,676 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 10:14:47,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:14:47,676 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 10:14:47,676 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 10:14:47,676 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-05 10:14:47,681 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,682 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,683 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,684 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,685 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,686 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,687 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,688 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,689 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,690 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,691 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,691 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,691 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,691 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,691 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,691 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,691 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,692 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,692 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,692 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,692 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,692 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,692 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,692 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,692 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,692 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,693 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:14:47,693 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:14:47,694 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 10:14:47,694 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:14:47,694 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:14:47,694 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:14:47,694 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:14:47,694 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:14:47,694 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:14:47,694 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:14:47,694 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:14:47,696 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 97 transitions, 206 flow [2021-06-05 10:14:47,947 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8413 states, 8402 states have (on average 3.2056653177814805) internal successors, (26934), 8412 states have internal predecessors, (26934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 8413 states, 8402 states have (on average 3.2056653177814805) internal successors, (26934), 8412 states have internal predecessors, (26934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:47,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-06-05 10:14:47,970 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:47,970 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:47,970 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:47,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:47,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1218968454, now seen corresponding path program 1 times [2021-06-05 10:14:47,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:47,971 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250759565] [2021-06-05 10:14:47,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:47,993 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:47,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250759565] [2021-06-05 10:14:47,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250759565] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:47,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:47,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 10:14:47,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726765178] [2021-06-05 10:14:47,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 10:14:47,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:47,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 10:14:47,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:14:48,013 INFO L87 Difference]: Start difference. First operand has 8413 states, 8402 states have (on average 3.2056653177814805) internal successors, (26934), 8412 states have internal predecessors, (26934), 0 states have call successors, (0), 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 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:48,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:48,058 INFO L93 Difference]: Finished difference Result 5379 states and 15459 transitions. [2021-06-05 10:14:48,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 10:14:48,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-06-05 10:14:48,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:48,082 INFO L225 Difference]: With dead ends: 5379 [2021-06-05 10:14:48,083 INFO L226 Difference]: Without dead ends: 5186 [2021-06-05 10:14:48,083 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:14:48,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2021-06-05 10:14:48,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 4685. [2021-06-05 10:14:48,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4685 states, 4682 states have (on average 2.910508329773601) internal successors, (13627), 4684 states have internal predecessors, (13627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 13627 transitions. [2021-06-05 10:14:48,236 INFO L78 Accepts]: Start accepts. Automaton has 4685 states and 13627 transitions. Word has length 44 [2021-06-05 10:14:48,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:48,236 INFO L482 AbstractCegarLoop]: Abstraction has 4685 states and 13627 transitions. [2021-06-05 10:14:48,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:48,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states and 13627 transitions. [2021-06-05 10:14:48,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 10:14:48,238 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:48,238 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:48,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:14:48,238 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:48,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:48,239 INFO L82 PathProgramCache]: Analyzing trace with hash 403123635, now seen corresponding path program 1 times [2021-06-05 10:14:48,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:48,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092480213] [2021-06-05 10:14:48,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:48,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:48,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092480213] [2021-06-05 10:14:48,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092480213] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:48,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:48,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:14:48,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702419489] [2021-06-05 10:14:48,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:14:48,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:48,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:14:48,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:14:48,317 INFO L87 Difference]: Start difference. First operand 4685 states and 13627 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:48,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:48,486 INFO L93 Difference]: Finished difference Result 10643 states and 30735 transitions. [2021-06-05 10:14:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:14:48,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-06-05 10:14:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:48,538 INFO L225 Difference]: With dead ends: 10643 [2021-06-05 10:14:48,538 INFO L226 Difference]: Without dead ends: 10643 [2021-06-05 10:14:48,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 38.9ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:14:48,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10643 states. [2021-06-05 10:14:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10643 to 6784. [2021-06-05 10:14:48,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6784 states, 6781 states have (on average 2.930246276360419) internal successors, (19870), 6783 states have internal predecessors, (19870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:48,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6784 states to 6784 states and 19870 transitions. [2021-06-05 10:14:48,736 INFO L78 Accepts]: Start accepts. Automaton has 6784 states and 19870 transitions. Word has length 47 [2021-06-05 10:14:48,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:48,736 INFO L482 AbstractCegarLoop]: Abstraction has 6784 states and 19870 transitions. [2021-06-05 10:14:48,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:48,737 INFO L276 IsEmpty]: Start isEmpty. Operand 6784 states and 19870 transitions. [2021-06-05 10:14:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:14:48,739 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:48,739 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:48,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:14:48,739 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:48,740 INFO L82 PathProgramCache]: Analyzing trace with hash -226299096, now seen corresponding path program 1 times [2021-06-05 10:14:48,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:48,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685775776] [2021-06-05 10:14:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:48,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:48,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685775776] [2021-06-05 10:14:48,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685775776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:48,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:48,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 10:14:48,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566826061] [2021-06-05 10:14:48,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 10:14:48,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:48,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 10:14:48,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:14:48,764 INFO L87 Difference]: Start difference. First operand 6784 states and 19870 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:48,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:48,802 INFO L93 Difference]: Finished difference Result 7032 states and 20295 transitions. [2021-06-05 10:14:48,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 10:14:48,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 10:14:48,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:48,816 INFO L225 Difference]: With dead ends: 7032 [2021-06-05 10:14:48,817 INFO L226 Difference]: Without dead ends: 6952 [2021-06-05 10:14:48,817 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:14:48,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6952 states. [2021-06-05 10:14:48,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6952 to 6544. [2021-06-05 10:14:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6544 states, 6541 states have (on average 2.9041430973857207) internal successors, (18996), 6543 states have internal predecessors, (18996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:48,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6544 states to 6544 states and 18996 transitions. [2021-06-05 10:14:48,985 INFO L78 Accepts]: Start accepts. Automaton has 6544 states and 18996 transitions. Word has length 51 [2021-06-05 10:14:48,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:48,985 INFO L482 AbstractCegarLoop]: Abstraction has 6544 states and 18996 transitions. [2021-06-05 10:14:48,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:48,986 INFO L276 IsEmpty]: Start isEmpty. Operand 6544 states and 18996 transitions. [2021-06-05 10:14:48,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:14:48,988 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:48,989 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:48,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:14:48,989 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:48,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1484657174, now seen corresponding path program 1 times [2021-06-05 10:14:48,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:48,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028286302] [2021-06-05 10:14:48,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:49,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:49,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028286302] [2021-06-05 10:14:49,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028286302] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:49,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:49,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:14:49,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788104643] [2021-06-05 10:14:49,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:14:49,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:49,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:14:49,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:14:49,034 INFO L87 Difference]: Start difference. First operand 6544 states and 18996 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:49,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:49,195 INFO L93 Difference]: Finished difference Result 12709 states and 36943 transitions. [2021-06-05 10:14:49,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:14:49,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:14:49,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:49,222 INFO L225 Difference]: With dead ends: 12709 [2021-06-05 10:14:49,222 INFO L226 Difference]: Without dead ends: 12709 [2021-06-05 10:14:49,222 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 33.0ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:14:49,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12709 states. [2021-06-05 10:14:49,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12709 to 8509. [2021-06-05 10:14:49,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8509 states, 8506 states have (on average 2.925464378086057) internal successors, (24884), 8508 states have internal predecessors, (24884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:49,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8509 states to 8509 states and 24884 transitions. [2021-06-05 10:14:49,460 INFO L78 Accepts]: Start accepts. Automaton has 8509 states and 24884 transitions. Word has length 54 [2021-06-05 10:14:49,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:49,460 INFO L482 AbstractCegarLoop]: Abstraction has 8509 states and 24884 transitions. [2021-06-05 10:14:49,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 8509 states and 24884 transitions. [2021-06-05 10:14:49,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:14:49,463 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:49,463 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:49,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 10:14:49,464 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:49,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:49,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1028257588, now seen corresponding path program 1 times [2021-06-05 10:14:49,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:49,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497484913] [2021-06-05 10:14:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:49,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:49,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497484913] [2021-06-05 10:14:49,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497484913] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:49,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647082798] [2021-06-05 10:14:49,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:49,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 10:14:49,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:49,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647082798] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:49,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:49,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-06-05 10:14:49,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554633262] [2021-06-05 10:14:49,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 10:14:49,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:49,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 10:14:49,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:14:49,682 INFO L87 Difference]: Start difference. First operand 8509 states and 24884 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:50,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:50,032 INFO L93 Difference]: Finished difference Result 17080 states and 49166 transitions. [2021-06-05 10:14:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 10:14:50,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:14:50,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:50,065 INFO L225 Difference]: With dead ends: 17080 [2021-06-05 10:14:50,065 INFO L226 Difference]: Without dead ends: 17080 [2021-06-05 10:14:50,065 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 151.4ms TimeCoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2021-06-05 10:14:50,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17080 states. [2021-06-05 10:14:50,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17080 to 10406. [2021-06-05 10:14:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10406 states, 10403 states have (on average 2.945111986926848) internal successors, (30638), 10405 states have internal predecessors, (30638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:50,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10406 states to 10406 states and 30638 transitions. [2021-06-05 10:14:50,296 INFO L78 Accepts]: Start accepts. Automaton has 10406 states and 30638 transitions. Word has length 54 [2021-06-05 10:14:50,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:50,296 INFO L482 AbstractCegarLoop]: Abstraction has 10406 states and 30638 transitions. [2021-06-05 10:14:50,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:50,296 INFO L276 IsEmpty]: Start isEmpty. Operand 10406 states and 30638 transitions. [2021-06-05 10:14:50,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:14:50,303 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:50,303 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:50,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:50,517 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:50,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:50,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1606767754, now seen corresponding path program 1 times [2021-06-05 10:14:50,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:50,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968507081] [2021-06-05 10:14:50,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:50,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:50,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968507081] [2021-06-05 10:14:50,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968507081] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:50,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086406321] [2021-06-05 10:14:50,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:50,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 10:14:50,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:50,748 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:50,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086406321] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:50,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:50,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-06-05 10:14:50,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222250431] [2021-06-05 10:14:50,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 10:14:50,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:50,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 10:14:50,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:14:50,751 INFO L87 Difference]: Start difference. First operand 10406 states and 30638 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:51,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:51,133 INFO L93 Difference]: Finished difference Result 20846 states and 60525 transitions. [2021-06-05 10:14:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 10:14:51,133 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:14:51,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:51,173 INFO L225 Difference]: With dead ends: 20846 [2021-06-05 10:14:51,173 INFO L226 Difference]: Without dead ends: 20846 [2021-06-05 10:14:51,173 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 141.9ms TimeCoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2021-06-05 10:14:51,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20846 states. [2021-06-05 10:14:51,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20846 to 12646. [2021-06-05 10:14:51,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12646 states, 12643 states have (on average 2.9681246539587125) internal successors, (37526), 12645 states have internal predecessors, (37526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:51,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12646 states to 12646 states and 37526 transitions. [2021-06-05 10:14:51,460 INFO L78 Accepts]: Start accepts. Automaton has 12646 states and 37526 transitions. Word has length 61 [2021-06-05 10:14:51,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:51,460 INFO L482 AbstractCegarLoop]: Abstraction has 12646 states and 37526 transitions. [2021-06-05 10:14:51,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:51,460 INFO L276 IsEmpty]: Start isEmpty. Operand 12646 states and 37526 transitions. [2021-06-05 10:14:51,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:14:51,467 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:51,467 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:51,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-05 10:14:51,684 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:51,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:51,685 INFO L82 PathProgramCache]: Analyzing trace with hash 779790995, now seen corresponding path program 2 times [2021-06-05 10:14:51,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:51,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117164402] [2021-06-05 10:14:51,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:51,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:51,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117164402] [2021-06-05 10:14:51,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117164402] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:51,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015739379] [2021-06-05 10:14:51,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:51,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 10:14:51,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:14:51,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-05 10:14:51,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:51,996 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:51,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015739379] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:51,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:51,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2021-06-05 10:14:51,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053789605] [2021-06-05 10:14:51,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 10:14:51,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:51,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 10:14:51,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:14:51,997 INFO L87 Difference]: Start difference. First operand 12646 states and 37526 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:52,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:52,449 INFO L93 Difference]: Finished difference Result 24374 states and 70619 transitions. [2021-06-05 10:14:52,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:14:52,449 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:14:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:52,513 INFO L225 Difference]: With dead ends: 24374 [2021-06-05 10:14:52,513 INFO L226 Difference]: Without dead ends: 24374 [2021-06-05 10:14:52,513 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 187.7ms TimeCoverageRelationStatistics Valid=187, Invalid=805, Unknown=0, NotChecked=0, Total=992 [2021-06-05 10:14:52,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24374 states. [2021-06-05 10:14:52,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24374 to 14935. [2021-06-05 10:14:52,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14935 states, 14932 states have (on average 2.981449236538977) internal successors, (44519), 14934 states have internal predecessors, (44519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14935 states to 14935 states and 44519 transitions. [2021-06-05 10:14:52,889 INFO L78 Accepts]: Start accepts. Automaton has 14935 states and 44519 transitions. Word has length 61 [2021-06-05 10:14:52,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:52,889 INFO L482 AbstractCegarLoop]: Abstraction has 14935 states and 44519 transitions. [2021-06-05 10:14:52,890 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 14935 states and 44519 transitions. [2021-06-05 10:14:52,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 10:14:52,899 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:52,899 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:53,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:53,121 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:53,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:53,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1295709127, now seen corresponding path program 1 times [2021-06-05 10:14:53,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:53,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386451629] [2021-06-05 10:14:53,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:53,183 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:53,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:53,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386451629] [2021-06-05 10:14:53,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386451629] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:53,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:53,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:14:53,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086211882] [2021-06-05 10:14:53,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:14:53,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:53,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:14:53,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:14:53,185 INFO L87 Difference]: Start difference. First operand 14935 states and 44519 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:53,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:53,534 INFO L93 Difference]: Finished difference Result 35799 states and 106279 transitions. [2021-06-05 10:14:53,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 10:14:53,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-05 10:14:53,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:53,588 INFO L225 Difference]: With dead ends: 35799 [2021-06-05 10:14:53,588 INFO L226 Difference]: Without dead ends: 35799 [2021-06-05 10:14:53,589 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 100.7ms TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:14:53,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35799 states. [2021-06-05 10:14:54,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35799 to 15959. [2021-06-05 10:14:54,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15959 states, 15956 states have (on average 2.9806342441714717) internal successors, (47559), 15958 states have internal predecessors, (47559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:54,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15959 states to 15959 states and 47559 transitions. [2021-06-05 10:14:54,197 INFO L78 Accepts]: Start accepts. Automaton has 15959 states and 47559 transitions. Word has length 64 [2021-06-05 10:14:54,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:54,197 INFO L482 AbstractCegarLoop]: Abstraction has 15959 states and 47559 transitions. [2021-06-05 10:14:54,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 15959 states and 47559 transitions. [2021-06-05 10:14:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 10:14:54,208 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:54,208 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:54,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 10:14:54,209 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:54,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:54,209 INFO L82 PathProgramCache]: Analyzing trace with hash -2030138861, now seen corresponding path program 2 times [2021-06-05 10:14:54,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:54,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520208148] [2021-06-05 10:14:54,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:54,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:54,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520208148] [2021-06-05 10:14:54,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520208148] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:54,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:54,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 10:14:54,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321016421] [2021-06-05 10:14:54,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 10:14:54,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:54,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 10:14:54,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 10:14:54,235 INFO L87 Difference]: Start difference. First operand 15959 states and 47559 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:54,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:54,277 INFO L93 Difference]: Finished difference Result 12367 states and 36520 transitions. [2021-06-05 10:14:54,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 10:14:54,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-05 10:14:54,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:54,295 INFO L225 Difference]: With dead ends: 12367 [2021-06-05 10:14:54,295 INFO L226 Difference]: Without dead ends: 12367 [2021-06-05 10:14:54,295 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 10:14:54,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2021-06-05 10:14:54,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 12367. [2021-06-05 10:14:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12367 states, 12364 states have (on average 2.9537366548042705) internal successors, (36520), 12366 states have internal predecessors, (36520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12367 states to 12367 states and 36520 transitions. [2021-06-05 10:14:54,538 INFO L78 Accepts]: Start accepts. Automaton has 12367 states and 36520 transitions. Word has length 64 [2021-06-05 10:14:54,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:54,539 INFO L482 AbstractCegarLoop]: Abstraction has 12367 states and 36520 transitions. [2021-06-05 10:14:54,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:54,539 INFO L276 IsEmpty]: Start isEmpty. Operand 12367 states and 36520 transitions. [2021-06-05 10:14:54,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 10:14:54,546 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:54,546 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:54,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 10:14:54,546 INFO L430 AbstractCegarLoop]: === Iteration 10 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:54,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:54,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1991339420, now seen corresponding path program 1 times [2021-06-05 10:14:54,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:54,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056965237] [2021-06-05 10:14:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:54,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:54,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056965237] [2021-06-05 10:14:54,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056965237] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:14:54,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:14:54,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:14:54,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372109080] [2021-06-05 10:14:54,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:14:54,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:54,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:14:54,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:14:54,615 INFO L87 Difference]: Start difference. First operand 12367 states and 36520 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:54,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:54,997 INFO L93 Difference]: Finished difference Result 17788 states and 51928 transitions. [2021-06-05 10:14:54,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 10:14:54,997 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-05 10:14:54,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:55,025 INFO L225 Difference]: With dead ends: 17788 [2021-06-05 10:14:55,025 INFO L226 Difference]: Without dead ends: 17788 [2021-06-05 10:14:55,025 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 91.7ms TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2021-06-05 10:14:55,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17788 states. [2021-06-05 10:14:55,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17788 to 12647. [2021-06-05 10:14:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12647 states, 12644 states have (on average 2.9595855741853843) internal successors, (37421), 12646 states have internal predecessors, (37421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12647 states to 12647 states and 37421 transitions. [2021-06-05 10:14:55,323 INFO L78 Accepts]: Start accepts. Automaton has 12647 states and 37421 transitions. Word has length 65 [2021-06-05 10:14:55,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:55,323 INFO L482 AbstractCegarLoop]: Abstraction has 12647 states and 37421 transitions. [2021-06-05 10:14:55,323 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 12647 states and 37421 transitions. [2021-06-05 10:14:55,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 10:14:55,333 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:55,333 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:55,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 10:14:55,333 INFO L430 AbstractCegarLoop]: === Iteration 11 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:55,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:55,333 INFO L82 PathProgramCache]: Analyzing trace with hash -180304362, now seen corresponding path program 2 times [2021-06-05 10:14:55,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:55,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847098011] [2021-06-05 10:14:55,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:55,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:55,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847098011] [2021-06-05 10:14:55,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847098011] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:55,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320922187] [2021-06-05 10:14:55,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:55,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 10:14:55,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:14:55,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-05 10:14:55,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:55,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320922187] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:55,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:55,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2021-06-05 10:14:55,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030278962] [2021-06-05 10:14:55,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 10:14:55,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:55,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 10:14:55,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:14:55,568 INFO L87 Difference]: Start difference. First operand 12647 states and 37421 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:56,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:56,156 INFO L93 Difference]: Finished difference Result 22607 states and 65576 transitions. [2021-06-05 10:14:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-05 10:14:56,156 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-05 10:14:56,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:56,186 INFO L225 Difference]: With dead ends: 22607 [2021-06-05 10:14:56,187 INFO L226 Difference]: Without dead ends: 22607 [2021-06-05 10:14:56,187 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 207.3ms TimeCoverageRelationStatistics Valid=187, Invalid=805, Unknown=0, NotChecked=0, Total=992 [2021-06-05 10:14:56,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22607 states. [2021-06-05 10:14:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22607 to 14327. [2021-06-05 10:14:56,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14327 states, 14324 states have (on average 2.971446523317509) internal successors, (42563), 14326 states have internal predecessors, (42563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:56,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14327 states to 14327 states and 42563 transitions. [2021-06-05 10:14:56,466 INFO L78 Accepts]: Start accepts. Automaton has 14327 states and 42563 transitions. Word has length 68 [2021-06-05 10:14:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:56,466 INFO L482 AbstractCegarLoop]: Abstraction has 14327 states and 42563 transitions. [2021-06-05 10:14:56,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 14327 states and 42563 transitions. [2021-06-05 10:14:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 10:14:56,533 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:56,533 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:56,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-05 10:14:56,735 INFO L430 AbstractCegarLoop]: === Iteration 12 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:56,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:56,735 INFO L82 PathProgramCache]: Analyzing trace with hash -2043003308, now seen corresponding path program 3 times [2021-06-05 10:14:56,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:56,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311177966] [2021-06-05 10:14:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:14:56,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:56,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311177966] [2021-06-05 10:14:56,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311177966] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:56,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149749721] [2021-06-05 10:14:56,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:56,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-05 10:14:56,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:14:56,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 10:14:56,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:57,031 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-05 10:14:57,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149749721] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:57,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:57,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-05 10:14:57,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212405556] [2021-06-05 10:14:57,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 10:14:57,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:57,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 10:14:57,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-06-05 10:14:57,034 INFO L87 Difference]: Start difference. First operand 14327 states and 42563 transitions. Second operand has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:58,602 INFO L93 Difference]: Finished difference Result 25510 states and 74284 transitions. [2021-06-05 10:14:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-05 10:14:58,603 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-05 10:14:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:58,633 INFO L225 Difference]: With dead ends: 25510 [2021-06-05 10:14:58,633 INFO L226 Difference]: Without dead ends: 22966 [2021-06-05 10:14:58,634 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 970.1ms TimeCoverageRelationStatistics Valid=536, Invalid=2220, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 10:14:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22966 states. [2021-06-05 10:14:58,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22966 to 7412. [2021-06-05 10:14:58,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7412 states, 7411 states have (on average 2.8592632573201997) internal successors, (21190), 7411 states have internal predecessors, (21190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:58,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7412 states to 7412 states and 21190 transitions. [2021-06-05 10:14:58,857 INFO L78 Accepts]: Start accepts. Automaton has 7412 states and 21190 transitions. Word has length 68 [2021-06-05 10:14:58,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:58,858 INFO L482 AbstractCegarLoop]: Abstraction has 7412 states and 21190 transitions. [2021-06-05 10:14:58,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:58,858 INFO L276 IsEmpty]: Start isEmpty. Operand 7412 states and 21190 transitions. [2021-06-05 10:14:58,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-06-05 10:14:58,865 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:58,865 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:59,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-05 10:14:59,073 INFO L430 AbstractCegarLoop]: === Iteration 13 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:59,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:59,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1699880648, now seen corresponding path program 1 times [2021-06-05 10:14:59,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:59,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144412125] [2021-06-05 10:14:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:59,164 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:59,164 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144412125] [2021-06-05 10:14:59,164 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144412125] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:59,164 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120912075] [2021-06-05 10:14:59,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:59,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-05 10:14:59,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:14:59,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:59,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120912075] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:59,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:14:59,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2021-06-05 10:14:59,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100543579] [2021-06-05 10:14:59,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 10:14:59,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:14:59,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 10:14:59,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:14:59,335 INFO L87 Difference]: Start difference. First operand 7412 states and 21190 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:59,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:14:59,572 INFO L93 Difference]: Finished difference Result 9492 states and 27170 transitions. [2021-06-05 10:14:59,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 10:14:59,573 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-06-05 10:14:59,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:14:59,584 INFO L225 Difference]: With dead ends: 9492 [2021-06-05 10:14:59,584 INFO L226 Difference]: Without dead ends: 9492 [2021-06-05 10:14:59,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-06-05 10:14:59,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9492 states. [2021-06-05 10:14:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9492 to 7412. [2021-06-05 10:14:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7412 states, 7411 states have (on average 2.8592632573201997) internal successors, (21190), 7411 states have internal predecessors, (21190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7412 states to 7412 states and 21190 transitions. [2021-06-05 10:14:59,699 INFO L78 Accepts]: Start accepts. Automaton has 7412 states and 21190 transitions. Word has length 72 [2021-06-05 10:14:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:14:59,700 INFO L482 AbstractCegarLoop]: Abstraction has 7412 states and 21190 transitions. [2021-06-05 10:14:59,700 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:14:59,700 INFO L276 IsEmpty]: Start isEmpty. Operand 7412 states and 21190 transitions. [2021-06-05 10:14:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 10:14:59,710 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:14:59,710 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:14:59,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:14:59,925 INFO L430 AbstractCegarLoop]: === Iteration 14 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:14:59,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:14:59,925 INFO L82 PathProgramCache]: Analyzing trace with hash -658147466, now seen corresponding path program 3 times [2021-06-05 10:14:59,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:14:59,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953281608] [2021-06-05 10:14:59,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:14:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:14:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:14:59,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:14:59,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953281608] [2021-06-05 10:14:59,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953281608] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:14:59,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732428235] [2021-06-05 10:14:59,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:00,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-05 10:15:00,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:15:00,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 10:15:00,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:15:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-05 10:15:00,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732428235] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:15:00,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:15:00,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-05 10:15:00,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414205737] [2021-06-05 10:15:00,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 10:15:00,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:15:00,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 10:15:00,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-06-05 10:15:00,233 INFO L87 Difference]: Start difference. First operand 7412 states and 21190 transitions. Second operand has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:15:01,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:15:01,578 INFO L93 Difference]: Finished difference Result 10948 states and 31372 transitions. [2021-06-05 10:15:01,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-05 10:15:01,579 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-06-05 10:15:01,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:15:01,579 INFO L225 Difference]: With dead ends: 10948 [2021-06-05 10:15:01,579 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:15:01,580 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 924.7ms TimeCoverageRelationStatistics Valid=536, Invalid=2220, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 10:15:01,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:15:01,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:15:01,580 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) [2021-06-05 10:15:01,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:15:01,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2021-06-05 10:15:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:15:01,580 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:15:01,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:15:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:15:01,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:15:01,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:15:01,781 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 10:15:01,782 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 10:15:01,803 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:15:01,803 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:15:01,803 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:15:01,803 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:15:01,803 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:15:01,803 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:15:01,803 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:15:01,803 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 10:15:01,808 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 97 transitions, 206 flow [2021-06-05 10:15:02,049 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8413 states, 8402 states have (on average 3.2056653177814805) internal successors, (26934), 8412 states have internal predecessors, (26934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:15:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 8413 states, 8402 states have (on average 3.2056653177814805) internal successors, (26934), 8412 states have internal predecessors, (26934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:15:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-06-05 10:15:02,070 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:15:02,070 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:15:02,070 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 10:15:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:15:02,071 INFO L82 PathProgramCache]: Analyzing trace with hash -639096711, now seen corresponding path program 1 times [2021-06-05 10:15:02,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:15:02,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950353677] [2021-06-05 10:15:02,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:15:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:15:02,083 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:15:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 10:15:02,091 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 10:15:02,097 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 10:15:02,097 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 10:15:02,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 10:15:02,097 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 10:15:02,097 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 10:15:02,097 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-05 10:15:02,105 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,105 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,106 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,107 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,107 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,107 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,107 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,107 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,108 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,108 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,108 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,108 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,109 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,110 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,111 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,112 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,113 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,114 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,117 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,117 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,117 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,117 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,117 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,117 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,117 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,118 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,119 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,120 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,121 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,121 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,121 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,121 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,121 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,121 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,121 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,121 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,121 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,122 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,122 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,122 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,122 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,122 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,122 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,123 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,123 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,123 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,126 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,126 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,126 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,126 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,126 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,126 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,126 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,126 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,126 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,127 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,129 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,129 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,129 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,129 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,129 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,130 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,130 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,130 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,130 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,130 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:15:02,130 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:15:02,131 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:15:02,131 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:15:02,132 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:15:02,132 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:15:02,132 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:15:02,132 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:15:02,132 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:15:02,132 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:15:02,132 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:15:02,135 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 118 places, 125 transitions, 271 flow [2021-06-05 10:16:20,209 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 201373 states, 201350 states have (on average 4.332545319096101) internal successors, (872358), 201372 states have internal predecessors, (872358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 201373 states, 201350 states have (on average 4.332545319096101) internal successors, (872358), 201372 states have internal predecessors, (872358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:20,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-06-05 10:16:20,660 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:16:20,660 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:16:20,660 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:16:20,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:16:20,661 INFO L82 PathProgramCache]: Analyzing trace with hash 694734977, now seen corresponding path program 1 times [2021-06-05 10:16:20,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:16:20,661 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267624795] [2021-06-05 10:16:20,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:16:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:16:20,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:16:20,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:16:20,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267624795] [2021-06-05 10:16:20,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267624795] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:16:20,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:16:20,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 10:16:20,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640386309] [2021-06-05 10:16:20,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 10:16:20,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:16:20,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 10:16:20,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:16:21,038 INFO L87 Difference]: Start difference. First operand has 201373 states, 201350 states have (on average 4.332545319096101) internal successors, (872358), 201372 states have internal predecessors, (872358), 0 states have call successors, (0), 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 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:22,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:16:22,141 INFO L93 Difference]: Finished difference Result 123231 states and 483619 transitions. [2021-06-05 10:16:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 10:16:22,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-06-05 10:16:22,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:16:22,795 INFO L225 Difference]: With dead ends: 123231 [2021-06-05 10:16:22,796 INFO L226 Difference]: Without dead ends: 122654 [2021-06-05 10:16:22,796 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:16:24,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122654 states. [2021-06-05 10:16:26,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122654 to 109670. [2021-06-05 10:16:26,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109670 states, 109663 states have (on average 3.96430883707358) internal successors, (434738), 109669 states have internal predecessors, (434738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:27,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109670 states to 109670 states and 434738 transitions. [2021-06-05 10:16:27,575 INFO L78 Accepts]: Start accepts. Automaton has 109670 states and 434738 transitions. Word has length 44 [2021-06-05 10:16:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:16:27,575 INFO L482 AbstractCegarLoop]: Abstraction has 109670 states and 434738 transitions. [2021-06-05 10:16:27,575 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand 109670 states and 434738 transitions. [2021-06-05 10:16:27,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 10:16:27,576 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:16:27,576 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:16:27,576 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 10:16:27,576 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:16:27,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:16:27,577 INFO L82 PathProgramCache]: Analyzing trace with hash -535204102, now seen corresponding path program 1 times [2021-06-05 10:16:27,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:16:27,577 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219548673] [2021-06-05 10:16:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:16:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:16:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:16:27,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:16:27,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219548673] [2021-06-05 10:16:27,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219548673] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:16:27,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:16:27,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:16:27,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898568732] [2021-06-05 10:16:27,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:16:27,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:16:27,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:16:27,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:16:27,618 INFO L87 Difference]: Start difference. First operand 109670 states and 434738 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:30,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:16:30,072 INFO L93 Difference]: Finished difference Result 287051 states and 1129280 transitions. [2021-06-05 10:16:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:16:30,072 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-06-05 10:16:30,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:16:31,452 INFO L225 Difference]: With dead ends: 287051 [2021-06-05 10:16:31,453 INFO L226 Difference]: Without dead ends: 287051 [2021-06-05 10:16:31,453 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 30.1ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:16:34,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287051 states. [2021-06-05 10:16:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287051 to 175932. [2021-06-05 10:16:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175932 states, 175925 states have (on average 3.972005115816399) internal successors, (698775), 175931 states have internal predecessors, (698775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175932 states to 175932 states and 698775 transitions. [2021-06-05 10:16:40,755 INFO L78 Accepts]: Start accepts. Automaton has 175932 states and 698775 transitions. Word has length 47 [2021-06-05 10:16:40,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:16:40,757 INFO L482 AbstractCegarLoop]: Abstraction has 175932 states and 698775 transitions. [2021-06-05 10:16:40,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:40,757 INFO L276 IsEmpty]: Start isEmpty. Operand 175932 states and 698775 transitions. [2021-06-05 10:16:40,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:16:40,759 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:16:40,760 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:16:40,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 10:16:40,760 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:16:40,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:16:40,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1103807461, now seen corresponding path program 1 times [2021-06-05 10:16:40,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:16:40,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037712456] [2021-06-05 10:16:40,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:16:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:16:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:16:40,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:16:40,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037712456] [2021-06-05 10:16:40,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037712456] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:16:40,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:16:40,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 10:16:40,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733610097] [2021-06-05 10:16:40,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 10:16:40,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:16:40,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 10:16:40,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:16:40,797 INFO L87 Difference]: Start difference. First operand 175932 states and 698775 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:42,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:16:42,191 INFO L93 Difference]: Finished difference Result 188440 states and 740594 transitions. [2021-06-05 10:16:42,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 10:16:42,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 10:16:42,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:16:42,890 INFO L225 Difference]: With dead ends: 188440 [2021-06-05 10:16:42,891 INFO L226 Difference]: Without dead ends: 188200 [2021-06-05 10:16:42,891 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:16:45,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188200 states. [2021-06-05 10:16:48,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188200 to 172900. [2021-06-05 10:16:48,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172900 states, 172893 states have (on average 3.958974625924705) internal successors, (684479), 172899 states have internal predecessors, (684479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:49,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172900 states to 172900 states and 684479 transitions. [2021-06-05 10:16:49,874 INFO L78 Accepts]: Start accepts. Automaton has 172900 states and 684479 transitions. Word has length 51 [2021-06-05 10:16:49,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:16:49,874 INFO L482 AbstractCegarLoop]: Abstraction has 172900 states and 684479 transitions. [2021-06-05 10:16:49,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:49,874 INFO L276 IsEmpty]: Start isEmpty. Operand 172900 states and 684479 transitions. [2021-06-05 10:16:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:16:49,880 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:16:49,880 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:16:49,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 10:16:49,880 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:16:49,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:16:49,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1321001612, now seen corresponding path program 1 times [2021-06-05 10:16:49,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:16:49,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028810743] [2021-06-05 10:16:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:16:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:16:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:16:49,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:16:49,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028810743] [2021-06-05 10:16:49,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028810743] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:16:49,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:16:49,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:16:49,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903598300] [2021-06-05 10:16:49,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:16:49,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:16:49,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:16:49,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:16:49,921 INFO L87 Difference]: Start difference. First operand 172900 states and 684479 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:16:52,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:16:52,914 INFO L93 Difference]: Finished difference Result 355590 states and 1405574 transitions. [2021-06-05 10:16:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:16:52,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:16:52,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:16:54,874 INFO L225 Difference]: With dead ends: 355590 [2021-06-05 10:16:54,874 INFO L226 Difference]: Without dead ends: 355590 [2021-06-05 10:16:54,875 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 33.4ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:16:58,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355590 states. [2021-06-05 10:17:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355590 to 223849. [2021-06-05 10:17:03,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223849 states, 223842 states have (on average 3.979766978493759) internal successors, (890839), 223848 states have internal predecessors, (890839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:17:05,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223849 states to 223849 states and 890839 transitions. [2021-06-05 10:17:05,475 INFO L78 Accepts]: Start accepts. Automaton has 223849 states and 890839 transitions. Word has length 54 [2021-06-05 10:17:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:17:05,475 INFO L482 AbstractCegarLoop]: Abstraction has 223849 states and 890839 transitions. [2021-06-05 10:17:05,475 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:17:05,475 INFO L276 IsEmpty]: Start isEmpty. Operand 223849 states and 890839 transitions. [2021-06-05 10:17:05,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:17:05,481 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:17:05,481 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:17:05,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 10:17:05,481 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:17:05,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:17:05,481 INFO L82 PathProgramCache]: Analyzing trace with hash -2050970705, now seen corresponding path program 1 times [2021-06-05 10:17:05,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:17:05,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088957512] [2021-06-05 10:17:05,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:17:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:17:05,524 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:17:05,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:17:05,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088957512] [2021-06-05 10:17:05,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088957512] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:17:05,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710295449] [2021-06-05 10:17:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:17:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:17:05,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 10:17:05,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:17:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:17:05,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710295449] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:17:05,670 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:17:05,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-06-05 10:17:05,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002518030] [2021-06-05 10:17:05,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 10:17:05,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:17:05,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 10:17:05,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:17:05,671 INFO L87 Difference]: Start difference. First operand 223849 states and 890839 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:17:12,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:17:12,312 INFO L93 Difference]: Finished difference Result 646622 states and 2544821 transitions. [2021-06-05 10:17:12,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 10:17:12,312 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:17:12,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:17:17,336 INFO L225 Difference]: With dead ends: 646622 [2021-06-05 10:17:17,336 INFO L226 Difference]: Without dead ends: 646622 [2021-06-05 10:17:17,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 237.2ms TimeCoverageRelationStatistics Valid=284, Invalid=1122, Unknown=0, NotChecked=0, Total=1406 [2021-06-05 10:17:22,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646622 states. [2021-06-05 10:17:32,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646622 to 280916. [2021-06-05 10:17:32,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280916 states, 280909 states have (on average 4.008344339270013) internal successors, (1125980), 280915 states have internal predecessors, (1125980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:17:34,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280916 states to 280916 states and 1125980 transitions. [2021-06-05 10:17:34,198 INFO L78 Accepts]: Start accepts. Automaton has 280916 states and 1125980 transitions. Word has length 54 [2021-06-05 10:17:34,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:17:34,199 INFO L482 AbstractCegarLoop]: Abstraction has 280916 states and 1125980 transitions. [2021-06-05 10:17:34,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:17:34,199 INFO L276 IsEmpty]: Start isEmpty. Operand 280916 states and 1125980 transitions. [2021-06-05 10:17:34,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:17:34,212 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:17:34,212 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:17:34,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-05 10:17:34,413 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:17:34,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:17:34,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1703417374, now seen corresponding path program 1 times [2021-06-05 10:17:34,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:17:34,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371153537] [2021-06-05 10:17:34,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:17:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:17:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 10:17:34,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:17:34,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371153537] [2021-06-05 10:17:34,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371153537] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:17:34,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:17:34,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 10:17:34,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359807887] [2021-06-05 10:17:34,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 10:17:34,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:17:34,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 10:17:34,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:17:34,430 INFO L87 Difference]: Start difference. First operand 280916 states and 1125980 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:17:37,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:17:37,332 INFO L93 Difference]: Finished difference Result 311732 states and 1238072 transitions. [2021-06-05 10:17:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 10:17:37,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 10:17:37,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:17:38,579 INFO L225 Difference]: With dead ends: 311732 [2021-06-05 10:17:38,579 INFO L226 Difference]: Without dead ends: 311332 [2021-06-05 10:17:38,580 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-05 10:17:42,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311332 states. [2021-06-05 10:17:47,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311332 to 284788. [2021-06-05 10:17:48,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284788 states, 284781 states have (on average 3.999705036501733) internal successors, (1139040), 284787 states have internal predecessors, (1139040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:17:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284788 states to 284788 states and 1139040 transitions. [2021-06-05 10:17:49,734 INFO L78 Accepts]: Start accepts. Automaton has 284788 states and 1139040 transitions. Word has length 58 [2021-06-05 10:17:49,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:17:49,735 INFO L482 AbstractCegarLoop]: Abstraction has 284788 states and 1139040 transitions. [2021-06-05 10:17:49,735 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:17:49,735 INFO L276 IsEmpty]: Start isEmpty. Operand 284788 states and 1139040 transitions. [2021-06-05 10:17:49,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:17:49,761 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:17:49,761 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:17:49,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 10:17:49,762 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:17:49,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:17:49,762 INFO L82 PathProgramCache]: Analyzing trace with hash -686165037, now seen corresponding path program 1 times [2021-06-05 10:17:49,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:17:49,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235029173] [2021-06-05 10:17:49,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:17:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:17:49,806 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:17:49,806 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:17:49,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235029173] [2021-06-05 10:17:49,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235029173] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:17:49,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022122524] [2021-06-05 10:17:49,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:17:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:17:49,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 10:17:49,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:17:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:17:49,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022122524] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:17:49,962 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:17:49,962 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-06-05 10:17:49,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696017564] [2021-06-05 10:17:49,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-05 10:17:49,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:17:49,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-05 10:17:49,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:17:49,963 INFO L87 Difference]: Start difference. First operand 284788 states and 1139040 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:17:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:17:57,378 INFO L93 Difference]: Finished difference Result 717347 states and 2810569 transitions. [2021-06-05 10:17:57,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 10:17:57,395 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:17:57,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:18:02,856 INFO L225 Difference]: With dead ends: 717347 [2021-06-05 10:18:02,856 INFO L226 Difference]: Without dead ends: 717347 [2021-06-05 10:18:02,856 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 238.7ms TimeCoverageRelationStatistics Valid=284, Invalid=1122, Unknown=0, NotChecked=0, Total=1406 [2021-06-05 10:18:08,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717347 states. [2021-06-05 10:18:20,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717347 to 359443. [2021-06-05 10:18:20,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359443 states, 359436 states have (on average 4.025094870853225) internal successors, (1446764), 359442 states have internal predecessors, (1446764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:18:22,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359443 states to 359443 states and 1446764 transitions. [2021-06-05 10:18:22,861 INFO L78 Accepts]: Start accepts. Automaton has 359443 states and 1446764 transitions. Word has length 61 [2021-06-05 10:18:22,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:18:22,861 INFO L482 AbstractCegarLoop]: Abstraction has 359443 states and 1446764 transitions. [2021-06-05 10:18:22,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:18:22,861 INFO L276 IsEmpty]: Start isEmpty. Operand 359443 states and 1446764 transitions. [2021-06-05 10:18:22,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:18:22,893 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:18:22,893 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:18:23,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-05 10:18:23,094 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:18:23,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:18:23,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1405864268, now seen corresponding path program 1 times [2021-06-05 10:18:23,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:18:23,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263844088] [2021-06-05 10:18:23,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:18:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:18:23,131 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 10:18:23,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:18:23,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263844088] [2021-06-05 10:18:23,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263844088] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:18:23,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:18:23,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:18:23,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404947956] [2021-06-05 10:18:23,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:18:23,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:18:23,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:18:23,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:18:23,132 INFO L87 Difference]: Start difference. First operand 359443 states and 1446764 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:18:29,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:18:29,686 INFO L93 Difference]: Finished difference Result 744174 states and 3004038 transitions. [2021-06-05 10:18:29,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:18:29,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:18:29,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:18:33,563 INFO L225 Difference]: With dead ends: 744174 [2021-06-05 10:18:33,563 INFO L226 Difference]: Without dead ends: 744174 [2021-06-05 10:18:33,563 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 32.2ms TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:18:39,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744174 states. [2021-06-05 10:18:54,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744174 to 461670. [2021-06-05 10:18:55,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461670 states, 461663 states have (on average 4.052980204174907) internal successors, (1871111), 461669 states have internal predecessors, (1871111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:19:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461670 states to 461670 states and 1871111 transitions. [2021-06-05 10:19:00,363 INFO L78 Accepts]: Start accepts. Automaton has 461670 states and 1871111 transitions. Word has length 61 [2021-06-05 10:19:00,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:19:00,363 INFO L482 AbstractCegarLoop]: Abstraction has 461670 states and 1871111 transitions. [2021-06-05 10:19:00,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:19:00,363 INFO L276 IsEmpty]: Start isEmpty. Operand 461670 states and 1871111 transitions. [2021-06-05 10:19:00,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:19:00,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:19:00,393 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:19:00,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 10:19:00,393 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:19:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:19:00,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1091393190, now seen corresponding path program 2 times [2021-06-05 10:19:00,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:19:00,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201361225] [2021-06-05 10:19:00,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:19:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:19:00,443 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:19:00,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:19:00,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201361225] [2021-06-05 10:19:00,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201361225] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:19:00,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375913676] [2021-06-05 10:19:00,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:19:00,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 10:19:00,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 10:19:00,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-05 10:19:00,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 10:19:00,615 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:19:00,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375913676] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 10:19:00,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 10:19:00,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 15 [2021-06-05 10:19:00,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462091041] [2021-06-05 10:19:00,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 10:19:00,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:19:00,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 10:19:00,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:19:00,617 INFO L87 Difference]: Start difference. First operand 461670 states and 1871111 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:19:11,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:19:11,604 INFO L93 Difference]: Finished difference Result 1047139 states and 4132550 transitions. [2021-06-05 10:19:11,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 10:19:11,606 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:19:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:19:20,096 INFO L225 Difference]: With dead ends: 1047139 [2021-06-05 10:19:20,096 INFO L226 Difference]: Without dead ends: 1047139 [2021-06-05 10:19:20,097 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 709.1ms TimeCoverageRelationStatistics Valid=352, Invalid=1628, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 10:19:27,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047139 states. [2021-06-05 10:19:46,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047139 to 540042. [2021-06-05 10:19:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540042 states, 540035 states have (on average 4.063994000388863) internal successors, (2194699), 540041 states have internal predecessors, (2194699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:19:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540042 states to 540042 states and 2194699 transitions. [2021-06-05 10:19:51,354 INFO L78 Accepts]: Start accepts. Automaton has 540042 states and 2194699 transitions. Word has length 61 [2021-06-05 10:19:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:19:51,354 INFO L482 AbstractCegarLoop]: Abstraction has 540042 states and 2194699 transitions. [2021-06-05 10:19:51,354 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:19:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 540042 states and 2194699 transitions. [2021-06-05 10:19:51,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 10:19:51,470 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:19:51,470 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:19:51,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 10:19:51,686 INFO L430 AbstractCegarLoop]: === Iteration 10 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:19:51,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:19:51,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1208552925, now seen corresponding path program 1 times [2021-06-05 10:19:51,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:19:51,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981339685] [2021-06-05 10:19:51,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:19:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:19:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 10:19:51,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:19:51,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981339685] [2021-06-05 10:19:51,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981339685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:19:51,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:19:51,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:19:51,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111196490] [2021-06-05 10:19:51,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:19:51,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:19:51,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:19:51,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:19:51,771 INFO L87 Difference]: Start difference. First operand 540042 states and 2194699 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:20:08,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:20:08,160 INFO L93 Difference]: Finished difference Result 1408047 states and 5690000 transitions. [2021-06-05 10:20:08,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 10:20:08,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-05 10:20:08,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted.