/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:24:50,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:24:50,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:24:50,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 23:24:50,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 23:24:50,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 23:24:50,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 23:24:50,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 23:24:50,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 23:24:50,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 23:24:50,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 23:24:50,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 23:24:50,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 23:24:50,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 23:24:50,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 23:24:50,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 23:24:50,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 23:24:50,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 23:24:50,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 23:24:50,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 23:24:50,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 23:24:50,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 23:24:50,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 23:24:50,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 23:24:50,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 23:24:50,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 23:24:50,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 23:24:50,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 23:24:50,455 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 23:24:50,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:24:50,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:24:50,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:24:50,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:24:50,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:24:50,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:24:50,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:24:50,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:24:50,485 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:24:50,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:24:50,485 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:24:50,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:24:50,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:24:50,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:24:50,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:24:50,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:24:50,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:24:50,489 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:24:50,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:24:50,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:24:50,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:24:50,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:24:50,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:24:50,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:24:50,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:24:50,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:24:50,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:24:50,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:24:50,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:24:50,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:24:50,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:24:50,491 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:24:50,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:24:50,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:24:50,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:24:50,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:24:50,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:24:50,747 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 23:24:50,749 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 23:24:50,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2022-02-10 23:24:50,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96628c427/26862c193a3b4420a316be961939d2c1/FLAG3cfed57d1 [2022-02-10 23:24:51,279 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 23:24:51,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2022-02-10 23:24:51,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96628c427/26862c193a3b4420a316be961939d2c1/FLAG3cfed57d1 [2022-02-10 23:24:51,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96628c427/26862c193a3b4420a316be961939d2c1 [2022-02-10 23:24:51,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:24:51,653 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 23:24:51,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 23:24:51,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 23:24:51,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 23:24:51,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:24:51" (1/1) ... [2022-02-10 23:24:51,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34293f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:51, skipping insertion in model container [2022-02-10 23:24:51,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 11:24:51" (1/1) ... [2022-02-10 23:24:51,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 23:24:51,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 23:24:52,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2022-02-10 23:24:52,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2022-02-10 23:24:52,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:24:52,046 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 23:24:52,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2022-02-10 23:24:52,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2022-02-10 23:24:52,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 23:24:52,136 INFO L208 MainTranslator]: Completed translation [2022-02-10 23:24:52,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52 WrapperNode [2022-02-10 23:24:52,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 23:24:52,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:24:52,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:24:52,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:24:52,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,220 INFO L137 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2022-02-10 23:24:52,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:24:52,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:24:52,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:24:52,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:24:52,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:24:52,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:24:52,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:24:52,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:24:52,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (1/1) ... [2022-02-10 23:24:52,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:24:52,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:24:52,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 23:24:52,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 23:24:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 23:24:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-02-10 23:24:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-02-10 23:24:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-02-10 23:24:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-02-10 23:24:52,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 23:24:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 23:24:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 23:24:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 23:24:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 23:24:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-02-10 23:24:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 23:24:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:24:52,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:24:52,336 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 23:24:52,457 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:24:52,458 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:24:52,689 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:24:52,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:24:52,701 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 23:24:52,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:24:52 BoogieIcfgContainer [2022-02-10 23:24:52,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:24:52,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:24:52,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:24:52,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:24:52,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 11:24:51" (1/3) ... [2022-02-10 23:24:52,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ced902f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:24:52, skipping insertion in model container [2022-02-10 23:24:52,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 11:24:52" (2/3) ... [2022-02-10 23:24:52,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ced902f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:24:52, skipping insertion in model container [2022-02-10 23:24:52,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:24:52" (3/3) ... [2022-02-10 23:24:52,709 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2022-02-10 23:24:52,713 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:24:52,713 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:24:52,713 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-10 23:24:52,713 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:24:52,746 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,746 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,747 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,747 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,747 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,747 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,747 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,747 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,748 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,748 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,748 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,748 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,748 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,749 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,749 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,749 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,749 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,750 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,750 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,750 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,750 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,750 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,751 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,751 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,751 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,751 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,752 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,752 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,752 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,752 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,752 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,752 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,753 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,753 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,753 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,753 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,753 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,753 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,754 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,754 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,754 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,754 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,754 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,754 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,755 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,755 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,756 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,756 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,757 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,757 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,758 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,758 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,758 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,758 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,759 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,759 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,759 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,759 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,760 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,760 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,760 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,761 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,761 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,762 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,762 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,762 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,762 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,762 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,762 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,762 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,763 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,763 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,763 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,763 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,763 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,763 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,764 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,764 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,764 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,764 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,764 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,765 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,765 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,765 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,765 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,766 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,766 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,766 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,766 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,766 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,767 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,767 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,767 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,767 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,767 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,767 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,767 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,768 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,768 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,768 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,769 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,769 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,769 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,769 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,769 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,770 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,770 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,770 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,770 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,770 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,770 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,771 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,771 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,771 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,771 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,771 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,772 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,772 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,772 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,773 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,773 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,773 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,773 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,773 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,773 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,773 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,774 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,774 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,774 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,774 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,774 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,775 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,775 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,775 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,775 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,775 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,779 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,779 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,779 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,779 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,779 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,779 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,780 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_insertLogElement_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,780 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,780 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,780 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,780 WARN L322 ript$VariableManager]: TermVariable |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,782 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,782 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,783 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,783 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,783 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,783 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,783 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,783 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~nondet7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,783 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,784 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_removeLogElement_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,784 WARN L322 ript$VariableManager]: TermVariable |t2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:24:52,786 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 23:24:52,821 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:24:52,826 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 23:24:52,827 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-02-10 23:24:52,836 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 147 places, 150 transitions, 316 flow [2022-02-10 23:24:53,038 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5211 states, 5208 states have (on average 2.9086021505376345) internal successors, (15148), 5210 states have internal predecessors, (15148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:53,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 5211 states, 5208 states have (on average 2.9086021505376345) internal successors, (15148), 5210 states have internal predecessors, (15148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:53,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-10 23:24:53,084 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:53,085 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:24:53,085 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:24:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:53,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1386578492, now seen corresponding path program 1 times [2022-02-10 23:24:53,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:53,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124710182] [2022-02-10 23:24:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:53,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:53,269 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:24:53,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111684594] [2022-02-10 23:24:53,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:53,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:24:53,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:24:53,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:24:53,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 23:24:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:53,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 23:24:53,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:24:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:24:53,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:24:53,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:53,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124710182] [2022-02-10 23:24:53,780 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:24:53,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111684594] [2022-02-10 23:24:53,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111684594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:53,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:24:53,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 23:24:53,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894615467] [2022-02-10 23:24:53,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:53,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 23:24:53,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:53,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 23:24:53,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 23:24:53,826 INFO L87 Difference]: Start difference. First operand has 5211 states, 5208 states have (on average 2.9086021505376345) internal successors, (15148), 5210 states have internal predecessors, (15148), 0 states have call successors, (0), 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 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:53,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:53,964 INFO L93 Difference]: Finished difference Result 5334 states and 14959 transitions. [2022-02-10 23:24:53,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 23:24:53,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have 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 [2022-02-10 23:24:53,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:54,018 INFO L225 Difference]: With dead ends: 5334 [2022-02-10 23:24:54,018 INFO L226 Difference]: Without dead ends: 4998 [2022-02-10 23:24:54,020 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 23:24:54,026 INFO L934 BasicCegarLoop]: 212 mSDtfsCounter, 86 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:24:54,027 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 487 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-02-10 23:24:54,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4998 states. [2022-02-10 23:24:54,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4998 to 4998. [2022-02-10 23:24:54,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 4995 states have (on average 2.8026026026026027) internal successors, (13999), 4997 states have internal predecessors, (13999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 13999 transitions. [2022-02-10 23:24:54,255 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 13999 transitions. Word has length 65 [2022-02-10 23:24:54,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:54,263 INFO L470 AbstractCegarLoop]: Abstraction has 4998 states and 13999 transitions. [2022-02-10 23:24:54,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:54,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 13999 transitions. [2022-02-10 23:24:54,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-10 23:24:54,269 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:54,270 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:24:54,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 23:24:54,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-10 23:24:54,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:24:54,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:54,471 INFO L85 PathProgramCache]: Analyzing trace with hash 494049616, now seen corresponding path program 1 times [2022-02-10 23:24:54,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:54,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520408260] [2022-02-10 23:24:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:54,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:54,536 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:24:54,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1167218239] [2022-02-10 23:24:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:54,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:24:54,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:24:54,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:24:54,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 23:24:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:54,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 23:24:54,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:24:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:24:56,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:24:56,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:56,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520408260] [2022-02-10 23:24:56,923 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:24:56,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167218239] [2022-02-10 23:24:56,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167218239] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:56,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:24:56,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 23:24:56,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268462512] [2022-02-10 23:24:56,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:56,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 23:24:56,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:56,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 23:24:56,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2022-02-10 23:24:56,926 INFO L87 Difference]: Start difference. First operand 4998 states and 13999 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:57,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:57,039 INFO L93 Difference]: Finished difference Result 4718 states and 13213 transitions. [2022-02-10 23:24:57,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 23:24:57,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-02-10 23:24:57,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:57,062 INFO L225 Difference]: With dead ends: 4718 [2022-02-10 23:24:57,062 INFO L226 Difference]: Without dead ends: 4682 [2022-02-10 23:24:57,062 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2022-02-10 23:24:57,064 INFO L934 BasicCegarLoop]: 207 mSDtfsCounter, 91 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:24:57,068 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 319 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 52 Unchecked, 0.0s Time] [2022-02-10 23:24:57,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2022-02-10 23:24:57,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4298. [2022-02-10 23:24:57,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 4297 states have (on average 2.8033511752385385) internal successors, (12046), 4297 states have internal predecessors, (12046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:57,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 12046 transitions. [2022-02-10 23:24:57,188 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 12046 transitions. Word has length 71 [2022-02-10 23:24:57,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:57,190 INFO L470 AbstractCegarLoop]: Abstraction has 4298 states and 12046 transitions. [2022-02-10 23:24:57,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:57,190 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 12046 transitions. [2022-02-10 23:24:57,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-02-10 23:24:57,196 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:57,196 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:24:57,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 23:24:57,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-02-10 23:24:57,412 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:24:57,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:57,412 INFO L85 PathProgramCache]: Analyzing trace with hash 204627122, now seen corresponding path program 1 times [2022-02-10 23:24:57,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:57,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130240907] [2022-02-10 23:24:57,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:57,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:24:57,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:57,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130240907] [2022-02-10 23:24:57,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130240907] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:57,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:24:57,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:24:57,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965579681] [2022-02-10 23:24:57,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:57,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:24:57,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:57,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:24:57,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:24:57,567 INFO L87 Difference]: Start difference. First operand 4298 states and 12046 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:57,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:57,610 INFO L93 Difference]: Finished difference Result 5594 states and 15541 transitions. [2022-02-10 23:24:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:24:57,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have 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 [2022-02-10 23:24:57,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:57,636 INFO L225 Difference]: With dead ends: 5594 [2022-02-10 23:24:57,636 INFO L226 Difference]: Without dead ends: 5366 [2022-02-10 23:24:57,637 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:24:57,637 INFO L934 BasicCegarLoop]: 123 mSDtfsCounter, 70 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:24:57,638 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 209 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:24:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5366 states. [2022-02-10 23:24:57,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5366 to 5366. [2022-02-10 23:24:57,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 2.785461323392358) internal successors, (14944), 5365 states have internal predecessors, (14944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 14944 transitions. [2022-02-10 23:24:57,794 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 14944 transitions. Word has length 72 [2022-02-10 23:24:57,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:57,796 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 14944 transitions. [2022-02-10 23:24:57,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:57,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 14944 transitions. [2022-02-10 23:24:57,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-10 23:24:57,805 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:57,805 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:24:57,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 23:24:57,807 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:24:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:57,809 INFO L85 PathProgramCache]: Analyzing trace with hash -432690170, now seen corresponding path program 1 times [2022-02-10 23:24:57,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:57,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715600442] [2022-02-10 23:24:57,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:57,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:24:57,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:57,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715600442] [2022-02-10 23:24:57,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715600442] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:57,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:24:57,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:24:57,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307956168] [2022-02-10 23:24:57,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:57,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:24:57,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:57,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:24:57,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:24:57,886 INFO L87 Difference]: Start difference. First operand 5366 states and 14944 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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) [2022-02-10 23:24:57,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:57,923 INFO L93 Difference]: Finished difference Result 3091 states and 8038 transitions. [2022-02-10 23:24:57,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:24:57,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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 92 [2022-02-10 23:24:57,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:57,946 INFO L225 Difference]: With dead ends: 3091 [2022-02-10 23:24:57,946 INFO L226 Difference]: Without dead ends: 3091 [2022-02-10 23:24:57,946 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:24:57,947 INFO L934 BasicCegarLoop]: 149 mSDtfsCounter, 74 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:24:57,947 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 213 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:24:57,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2022-02-10 23:24:57,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 2445. [2022-02-10 23:24:57,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2443 states have (on average 2.606631191158412) internal successors, (6368), 2444 states have internal predecessors, (6368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:58,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 6368 transitions. [2022-02-10 23:24:58,001 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 6368 transitions. Word has length 92 [2022-02-10 23:24:58,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:58,002 INFO L470 AbstractCegarLoop]: Abstraction has 2445 states and 6368 transitions. [2022-02-10 23:24:58,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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) [2022-02-10 23:24:58,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 6368 transitions. [2022-02-10 23:24:58,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-10 23:24:58,007 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:58,007 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:24:58,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 23:24:58,008 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:24:58,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1576312575, now seen corresponding path program 1 times [2022-02-10 23:24:58,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:58,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95198041] [2022-02-10 23:24:58,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:58,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:24:58,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:58,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95198041] [2022-02-10 23:24:58,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95198041] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:58,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:24:58,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 23:24:58,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423641178] [2022-02-10 23:24:58,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:58,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 23:24:58,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:58,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 23:24:58,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 23:24:58,212 INFO L87 Difference]: Start difference. First operand 2445 states and 6368 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:58,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:58,294 INFO L93 Difference]: Finished difference Result 2969 states and 7737 transitions. [2022-02-10 23:24:58,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-10 23:24:58,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-02-10 23:24:58,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:58,301 INFO L225 Difference]: With dead ends: 2969 [2022-02-10 23:24:58,302 INFO L226 Difference]: Without dead ends: 2969 [2022-02-10 23:24:58,302 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-10 23:24:58,303 INFO L934 BasicCegarLoop]: 114 mSDtfsCounter, 375 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:24:58,304 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 323 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:24:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2022-02-10 23:24:58,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 2893. [2022-02-10 23:24:58,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2891 states have (on average 2.6098235904531304) internal successors, (7545), 2892 states have internal predecessors, (7545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7545 transitions. [2022-02-10 23:24:58,375 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7545 transitions. Word has length 93 [2022-02-10 23:24:58,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:58,375 INFO L470 AbstractCegarLoop]: Abstraction has 2893 states and 7545 transitions. [2022-02-10 23:24:58,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:58,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7545 transitions. [2022-02-10 23:24:58,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-10 23:24:58,385 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:58,385 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:24:58,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 23:24:58,385 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:24:58,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:58,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1284434283, now seen corresponding path program 1 times [2022-02-10 23:24:58,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:58,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757436462] [2022-02-10 23:24:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:58,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:58,404 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:24:58,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533890831] [2022-02-10 23:24:58,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:58,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:24:58,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:24:58,406 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:24:58,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 23:24:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:58,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-10 23:24:58,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:24:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:24:59,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:24:59,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:24:59,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757436462] [2022-02-10 23:24:59,118 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:24:59,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533890831] [2022-02-10 23:24:59,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533890831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:24:59,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:24:59,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 23:24:59,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798282929] [2022-02-10 23:24:59,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:24:59,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 23:24:59,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:24:59,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 23:24:59,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-10 23:24:59,120 INFO L87 Difference]: Start difference. First operand 2893 states and 7545 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:59,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:24:59,244 INFO L93 Difference]: Finished difference Result 4334 states and 11292 transitions. [2022-02-10 23:24:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 23:24:59,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-02-10 23:24:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:24:59,256 INFO L225 Difference]: With dead ends: 4334 [2022-02-10 23:24:59,256 INFO L226 Difference]: Without dead ends: 4334 [2022-02-10 23:24:59,257 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-02-10 23:24:59,257 INFO L934 BasicCegarLoop]: 146 mSDtfsCounter, 578 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:24:59,258 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [578 Valid, 524 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 23:24:59,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4334 states. [2022-02-10 23:24:59,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4334 to 4188. [2022-02-10 23:24:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4188 states, 4186 states have (on average 2.608695652173913) internal successors, (10920), 4187 states have internal predecessors, (10920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4188 states to 4188 states and 10920 transitions. [2022-02-10 23:24:59,348 INFO L78 Accepts]: Start accepts. Automaton has 4188 states and 10920 transitions. Word has length 96 [2022-02-10 23:24:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:24:59,349 INFO L470 AbstractCegarLoop]: Abstraction has 4188 states and 10920 transitions. [2022-02-10 23:24:59,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:24:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4188 states and 10920 transitions. [2022-02-10 23:24:59,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 23:24:59,356 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:24:59,357 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:24:59,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 23:24:59,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:24:59,572 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:24:59,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:24:59,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1635197725, now seen corresponding path program 1 times [2022-02-10 23:24:59,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:24:59,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454704766] [2022-02-10 23:24:59,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:59,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:24:59,591 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:24:59,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60229821] [2022-02-10 23:24:59,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:24:59,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:24:59,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:24:59,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:24:59,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 23:24:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:24:59,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 23:24:59,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:24:59,858 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-02-10 23:25:00,030 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 23:25:00,031 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 23:25:00,059 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 23:25:00,059 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 23:25:00,202 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:00,323 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:00,541 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-02-10 23:25:00,882 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-02-10 23:25:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:01,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:25:01,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:01,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454704766] [2022-02-10 23:25:01,561 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:25:01,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60229821] [2022-02-10 23:25:01,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60229821] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:01,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:01,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-10 23:25:01,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080383213] [2022-02-10 23:25:01,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:01,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-10 23:25:01,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:01,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-10 23:25:01,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:25:01,563 INFO L87 Difference]: Start difference. First operand 4188 states and 10920 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:02,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:02,020 INFO L93 Difference]: Finished difference Result 8616 states and 22673 transitions. [2022-02-10 23:25:02,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 23:25:02,021 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 23:25:02,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:02,045 INFO L225 Difference]: With dead ends: 8616 [2022-02-10 23:25:02,045 INFO L226 Difference]: Without dead ends: 8616 [2022-02-10 23:25:02,046 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=200, Invalid=502, Unknown=0, NotChecked=0, Total=702 [2022-02-10 23:25:02,047 INFO L934 BasicCegarLoop]: 192 mSDtfsCounter, 746 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 303 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:02,047 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 1673 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 232 Invalid, 0 Unknown, 303 Unchecked, 0.2s Time] [2022-02-10 23:25:02,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8616 states. [2022-02-10 23:25:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8616 to 5056. [2022-02-10 23:25:02,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5056 states, 5054 states have (on average 2.6125840918084684) internal successors, (13204), 5055 states have internal predecessors, (13204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:02,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5056 states to 5056 states and 13204 transitions. [2022-02-10 23:25:02,194 INFO L78 Accepts]: Start accepts. Automaton has 5056 states and 13204 transitions. Word has length 101 [2022-02-10 23:25:02,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:02,195 INFO L470 AbstractCegarLoop]: Abstraction has 5056 states and 13204 transitions. [2022-02-10 23:25:02,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:02,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5056 states and 13204 transitions. [2022-02-10 23:25:02,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 23:25:02,203 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:02,203 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:02,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:02,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:02,429 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:25:02,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:02,430 INFO L85 PathProgramCache]: Analyzing trace with hash -639006909, now seen corresponding path program 2 times [2022-02-10 23:25:02,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:02,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649395920] [2022-02-10 23:25:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:02,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:02,453 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:25:02,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430588559] [2022-02-10 23:25:02,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 23:25:02,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:02,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:02,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:02,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 23:25:02,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-10 23:25:02,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:25:02,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 23:25:02,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:02,722 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-02-10 23:25:02,869 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 23:25:02,870 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 23:25:02,898 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 23:25:02,899 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 23:25:03,068 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:03,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:03,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-02-10 23:25:03,668 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-02-10 23:25:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:04,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:25:04,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:04,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649395920] [2022-02-10 23:25:04,321 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:25:04,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430588559] [2022-02-10 23:25:04,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430588559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:04,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:04,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-10 23:25:04,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064308362] [2022-02-10 23:25:04,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:04,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-10 23:25:04,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:04,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-10 23:25:04,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:25:04,323 INFO L87 Difference]: Start difference. First operand 5056 states and 13204 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:04,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:04,456 INFO L93 Difference]: Finished difference Result 5580 states and 14541 transitions. [2022-02-10 23:25:04,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 23:25:04,456 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 23:25:04,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:04,469 INFO L225 Difference]: With dead ends: 5580 [2022-02-10 23:25:04,469 INFO L226 Difference]: Without dead ends: 5562 [2022-02-10 23:25:04,469 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2022-02-10 23:25:04,470 INFO L934 BasicCegarLoop]: 193 mSDtfsCounter, 201 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 221 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:04,470 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1286 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 221 Unchecked, 0.0s Time] [2022-02-10 23:25:04,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-02-10 23:25:04,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 5347. [2022-02-10 23:25:04,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5345 states have (on average 2.6170252572497663) internal successors, (13988), 5346 states have internal predecessors, (13988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 13988 transitions. [2022-02-10 23:25:04,598 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 13988 transitions. Word has length 101 [2022-02-10 23:25:04,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:04,598 INFO L470 AbstractCegarLoop]: Abstraction has 5347 states and 13988 transitions. [2022-02-10 23:25:04,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:04,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 13988 transitions. [2022-02-10 23:25:04,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 23:25:04,607 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:04,607 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:04,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:04,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:04,824 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:25:04,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:04,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1979206471, now seen corresponding path program 3 times [2022-02-10 23:25:04,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:04,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885582865] [2022-02-10 23:25:04,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:04,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:04,841 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:25:04,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2087571809] [2022-02-10 23:25:04,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 23:25:04,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:04,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:04,842 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:04,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 23:25:05,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-02-10 23:25:05,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:25:05,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 23:25:05,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:05,093 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-02-10 23:25:05,248 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 23:25:05,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 23:25:05,276 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 23:25:05,276 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 23:25:05,408 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:05,514 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:05,671 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-02-10 23:25:05,982 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-02-10 23:25:06,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:06,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:25:06,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:06,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885582865] [2022-02-10 23:25:06,554 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:25:06,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087571809] [2022-02-10 23:25:06,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087571809] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:06,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:06,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-10 23:25:06,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220618478] [2022-02-10 23:25:06,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:06,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-10 23:25:06,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:06,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-10 23:25:06,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:25:06,556 INFO L87 Difference]: Start difference. First operand 5347 states and 13988 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:07,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:07,025 INFO L93 Difference]: Finished difference Result 10260 states and 26862 transitions. [2022-02-10 23:25:07,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 23:25:07,025 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 23:25:07,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:07,055 INFO L225 Difference]: With dead ends: 10260 [2022-02-10 23:25:07,055 INFO L226 Difference]: Without dead ends: 10236 [2022-02-10 23:25:07,056 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=606, Unknown=0, NotChecked=0, Total=812 [2022-02-10 23:25:07,060 INFO L934 BasicCegarLoop]: 227 mSDtfsCounter, 1048 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 285 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:07,060 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1048 Valid, 1800 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 214 Invalid, 0 Unknown, 285 Unchecked, 0.2s Time] [2022-02-10 23:25:07,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10236 states. [2022-02-10 23:25:07,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10236 to 6046. [2022-02-10 23:25:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6046 states, 6044 states have (on average 2.6168100595632033) internal successors, (15816), 6045 states have internal predecessors, (15816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6046 states to 6046 states and 15816 transitions. [2022-02-10 23:25:07,231 INFO L78 Accepts]: Start accepts. Automaton has 6046 states and 15816 transitions. Word has length 101 [2022-02-10 23:25:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:07,232 INFO L470 AbstractCegarLoop]: Abstraction has 6046 states and 15816 transitions. [2022-02-10 23:25:07,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:07,232 INFO L276 IsEmpty]: Start isEmpty. Operand 6046 states and 15816 transitions. [2022-02-10 23:25:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 23:25:07,244 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:07,244 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:07,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:07,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:07,452 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:25:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash -365921763, now seen corresponding path program 4 times [2022-02-10 23:25:07,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:07,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38915734] [2022-02-10 23:25:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:07,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:07,469 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:25:07,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958862514] [2022-02-10 23:25:07,469 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 23:25:07,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:07,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:07,473 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:07,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 23:25:07,739 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 23:25:07,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:25:07,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-10 23:25:07,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:07,775 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-02-10 23:25:07,919 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 23:25:07,919 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 23:25:07,975 INFO L353 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-02-10 23:25:07,975 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-02-10 23:25:08,125 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:08,232 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:08,378 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-02-10 23:25:08,656 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-02-10 23:25:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:09,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:25:09,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:09,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38915734] [2022-02-10 23:25:09,220 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:25:09,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958862514] [2022-02-10 23:25:09,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958862514] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:09,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:09,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-10 23:25:09,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271073520] [2022-02-10 23:25:09,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:09,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-10 23:25:09,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:09,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-10 23:25:09,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:25:09,221 INFO L87 Difference]: Start difference. First operand 6046 states and 15816 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:09,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:09,913 INFO L93 Difference]: Finished difference Result 12226 states and 32057 transitions. [2022-02-10 23:25:09,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 23:25:09,914 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 23:25:09,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:09,944 INFO L225 Difference]: With dead ends: 12226 [2022-02-10 23:25:09,944 INFO L226 Difference]: Without dead ends: 12212 [2022-02-10 23:25:09,945 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=320, Invalid=736, Unknown=0, NotChecked=0, Total=1056 [2022-02-10 23:25:09,945 INFO L934 BasicCegarLoop]: 246 mSDtfsCounter, 1188 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 377 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:09,945 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1188 Valid, 1844 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 255 Invalid, 0 Unknown, 377 Unchecked, 0.2s Time] [2022-02-10 23:25:09,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2022-02-10 23:25:10,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 7221. [2022-02-10 23:25:10,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7221 states, 7219 states have (on average 2.6176755783349495) internal successors, (18897), 7220 states have internal predecessors, (18897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7221 states to 7221 states and 18897 transitions. [2022-02-10 23:25:10,149 INFO L78 Accepts]: Start accepts. Automaton has 7221 states and 18897 transitions. Word has length 101 [2022-02-10 23:25:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:10,149 INFO L470 AbstractCegarLoop]: Abstraction has 7221 states and 18897 transitions. [2022-02-10 23:25:10,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:10,150 INFO L276 IsEmpty]: Start isEmpty. Operand 7221 states and 18897 transitions. [2022-02-10 23:25:10,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 23:25:10,161 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:10,161 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:10,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:10,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:10,387 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:25:10,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:10,387 INFO L85 PathProgramCache]: Analyzing trace with hash 868596171, now seen corresponding path program 5 times [2022-02-10 23:25:10,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:10,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860467851] [2022-02-10 23:25:10,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:10,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:10,407 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:25:10,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1138688383] [2022-02-10 23:25:10,407 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 23:25:10,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:10,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:10,409 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:10,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 23:25:10,586 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-10 23:25:10,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:25:10,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 23:25:10,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:10,620 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-02-10 23:25:10,744 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 23:25:10,744 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 23:25:10,765 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 23:25:10,765 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 23:25:10,887 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:10,969 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:11,130 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-02-10 23:25:11,446 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-02-10 23:25:11,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:11,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:25:11,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:11,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860467851] [2022-02-10 23:25:11,967 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:25:11,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138688383] [2022-02-10 23:25:11,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138688383] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:11,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:11,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-10 23:25:11,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106722439] [2022-02-10 23:25:11,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:11,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-10 23:25:11,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:11,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-10 23:25:11,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:25:11,969 INFO L87 Difference]: Start difference. First operand 7221 states and 18897 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:12,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:12,515 INFO L93 Difference]: Finished difference Result 12140 states and 31825 transitions. [2022-02-10 23:25:12,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-10 23:25:12,515 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 23:25:12,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:12,546 INFO L225 Difference]: With dead ends: 12140 [2022-02-10 23:25:12,546 INFO L226 Difference]: Without dead ends: 12074 [2022-02-10 23:25:12,547 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=323, Invalid=799, Unknown=0, NotChecked=0, Total=1122 [2022-02-10 23:25:12,547 INFO L934 BasicCegarLoop]: 230 mSDtfsCounter, 1284 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 428 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:12,548 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1284 Valid, 1843 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 247 Invalid, 0 Unknown, 428 Unchecked, 0.2s Time] [2022-02-10 23:25:12,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12074 states. [2022-02-10 23:25:12,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12074 to 7678. [2022-02-10 23:25:12,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7676 states have (on average 2.635617509119333) internal successors, (20231), 7677 states have internal predecessors, (20231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:12,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20231 transitions. [2022-02-10 23:25:12,754 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20231 transitions. Word has length 101 [2022-02-10 23:25:12,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:12,755 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20231 transitions. [2022-02-10 23:25:12,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 17 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:12,755 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20231 transitions. [2022-02-10 23:25:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 23:25:12,766 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:12,767 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:12,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:12,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-10 23:25:12,995 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:25:12,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:12,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1448638877, now seen corresponding path program 6 times [2022-02-10 23:25:12,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:12,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673596178] [2022-02-10 23:25:12,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:12,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:13,014 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:25:13,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595286586] [2022-02-10 23:25:13,014 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 23:25:13,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:13,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:13,016 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:13,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 23:25:13,194 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-02-10 23:25:13,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:25:13,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 23:25:13,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:13,221 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-02-10 23:25:13,342 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 23:25:13,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 23:25:13,371 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 23:25:13,371 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 23:25:13,492 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:13,542 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:13,706 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-02-10 23:25:13,878 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-02-10 23:25:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:13,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:25:13,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:13,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673596178] [2022-02-10 23:25:13,985 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:25:13,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595286586] [2022-02-10 23:25:13,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595286586] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:13,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:13,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-10 23:25:13,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478697685] [2022-02-10 23:25:13,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:13,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-10 23:25:13,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:13,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-10 23:25:13,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-02-10 23:25:13,987 INFO L87 Difference]: Start difference. First operand 7678 states and 20231 transitions. Second operand has 16 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:14,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:14,317 INFO L93 Difference]: Finished difference Result 10440 states and 27492 transitions. [2022-02-10 23:25:14,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 23:25:14,318 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 23:25:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:14,338 INFO L225 Difference]: With dead ends: 10440 [2022-02-10 23:25:14,339 INFO L226 Difference]: Without dead ends: 10362 [2022-02-10 23:25:14,339 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2022-02-10 23:25:14,339 INFO L934 BasicCegarLoop]: 221 mSDtfsCounter, 776 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 276 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:14,340 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [776 Valid, 1695 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 272 Invalid, 0 Unknown, 276 Unchecked, 0.1s Time] [2022-02-10 23:25:14,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2022-02-10 23:25:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 8362. [2022-02-10 23:25:14,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8362 states, 8360 states have (on average 2.639473684210526) internal successors, (22066), 8361 states have internal predecessors, (22066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8362 states to 8362 states and 22066 transitions. [2022-02-10 23:25:14,575 INFO L78 Accepts]: Start accepts. Automaton has 8362 states and 22066 transitions. Word has length 101 [2022-02-10 23:25:14,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:14,575 INFO L470 AbstractCegarLoop]: Abstraction has 8362 states and 22066 transitions. [2022-02-10 23:25:14,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 8362 states and 22066 transitions. [2022-02-10 23:25:14,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-02-10 23:25:14,590 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:14,590 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:14,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:14,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:14,803 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:25:14,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:14,804 INFO L85 PathProgramCache]: Analyzing trace with hash -48024892, now seen corresponding path program 1 times [2022-02-10 23:25:14,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:14,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127358017] [2022-02-10 23:25:14,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:14,825 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:25:14,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056404246] [2022-02-10 23:25:14,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:14,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:14,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:14,827 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:14,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 23:25:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:15,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 23:25:15,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:15,054 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-02-10 23:25:15,175 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 23:25:15,175 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 23:25:15,197 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 23:25:15,197 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 23:25:15,307 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:15,387 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:15,537 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-02-10 23:25:15,807 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-02-10 23:25:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:16,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:25:16,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:16,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127358017] [2022-02-10 23:25:16,454 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:25:16,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056404246] [2022-02-10 23:25:16,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056404246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:16,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:16,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-10 23:25:16,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834201790] [2022-02-10 23:25:16,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:16,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-10 23:25:16,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:16,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-10 23:25:16,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:25:16,456 INFO L87 Difference]: Start difference. First operand 8362 states and 22066 transitions. Second operand has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:17,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:17,143 INFO L93 Difference]: Finished difference Result 13291 states and 35035 transitions. [2022-02-10 23:25:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-10 23:25:17,143 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-02-10 23:25:17,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:17,167 INFO L225 Difference]: With dead ends: 13291 [2022-02-10 23:25:17,167 INFO L226 Difference]: Without dead ends: 13276 [2022-02-10 23:25:17,168 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=396, Invalid=864, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 23:25:17,168 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 1381 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 477 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:17,168 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 1999 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 307 Invalid, 0 Unknown, 477 Unchecked, 0.2s Time] [2022-02-10 23:25:17,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13276 states. [2022-02-10 23:25:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13276 to 7725. [2022-02-10 23:25:17,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7725 states, 7723 states have (on average 2.6283827528162633) internal successors, (20299), 7724 states have internal predecessors, (20299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:17,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7725 states to 7725 states and 20299 transitions. [2022-02-10 23:25:17,373 INFO L78 Accepts]: Start accepts. Automaton has 7725 states and 20299 transitions. Word has length 102 [2022-02-10 23:25:17,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:17,373 INFO L470 AbstractCegarLoop]: Abstraction has 7725 states and 20299 transitions. [2022-02-10 23:25:17,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:17,373 INFO L276 IsEmpty]: Start isEmpty. Operand 7725 states and 20299 transitions. [2022-02-10 23:25:17,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-02-10 23:25:17,385 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:17,385 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:17,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:17,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-10 23:25:17,614 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:25:17,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1373063066, now seen corresponding path program 2 times [2022-02-10 23:25:17,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:17,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009301176] [2022-02-10 23:25:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:17,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:17,636 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:25:17,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938290177] [2022-02-10 23:25:17,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 23:25:17,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:17,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:17,645 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:17,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 23:25:17,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-10 23:25:17,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:25:17,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 23:25:17,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:17,858 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-02-10 23:25:17,976 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 23:25:17,977 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 23:25:18,023 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 23:25:18,023 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 23:25:18,133 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:18,216 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:18,364 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-02-10 23:25:18,699 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-02-10 23:25:19,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:19,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:25:19,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:19,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009301176] [2022-02-10 23:25:19,241 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:25:19,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938290177] [2022-02-10 23:25:19,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938290177] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:19,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:19,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-10 23:25:19,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595070001] [2022-02-10 23:25:19,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:19,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-10 23:25:19,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:19,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-10 23:25:19,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:25:19,242 INFO L87 Difference]: Start difference. First operand 7725 states and 20299 transitions. Second operand has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:19,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:19,757 INFO L93 Difference]: Finished difference Result 13190 states and 34764 transitions. [2022-02-10 23:25:19,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 23:25:19,758 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-02-10 23:25:19,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:19,779 INFO L225 Difference]: With dead ends: 13190 [2022-02-10 23:25:19,780 INFO L226 Difference]: Without dead ends: 13156 [2022-02-10 23:25:19,780 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=320, Invalid=736, Unknown=0, NotChecked=0, Total=1056 [2022-02-10 23:25:19,780 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 1185 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 434 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:19,780 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 1924 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 261 Invalid, 0 Unknown, 434 Unchecked, 0.2s Time] [2022-02-10 23:25:19,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13156 states. [2022-02-10 23:25:19,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13156 to 7474. [2022-02-10 23:25:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7474 states, 7472 states have (on average 2.6302194860813706) internal successors, (19653), 7473 states have internal predecessors, (19653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:20,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7474 states to 7474 states and 19653 transitions. [2022-02-10 23:25:20,005 INFO L78 Accepts]: Start accepts. Automaton has 7474 states and 19653 transitions. Word has length 102 [2022-02-10 23:25:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:20,006 INFO L470 AbstractCegarLoop]: Abstraction has 7474 states and 19653 transitions. [2022-02-10 23:25:20,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 7474 states and 19653 transitions. [2022-02-10 23:25:20,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-02-10 23:25:20,018 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:20,018 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:20,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:20,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-10 23:25:20,231 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:25:20,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:20,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1078942856, now seen corresponding path program 1 times [2022-02-10 23:25:20,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:20,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166483140] [2022-02-10 23:25:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:20,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:20,252 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:25:20,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828536436] [2022-02-10 23:25:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:20,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:20,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:20,259 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:20,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-10 23:25:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:25:20,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 23:25:20,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:25:20,544 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-02-10 23:25:20,658 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 23:25:20,659 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 23:25:20,681 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 23:25:20,681 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 23:25:20,784 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:20,872 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-02-10 23:25:21,014 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-02-10 23:25:21,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2022-02-10 23:25:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:25:21,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 23:25:21,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:25:21,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166483140] [2022-02-10 23:25:21,873 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-10 23:25:21,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828536436] [2022-02-10 23:25:21,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828536436] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:25:21,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:25:21,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-10 23:25:21,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604259217] [2022-02-10 23:25:21,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:25:21,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-10 23:25:21,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:25:21,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-10 23:25:21,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-02-10 23:25:21,874 INFO L87 Difference]: Start difference. First operand 7474 states and 19653 transitions. Second operand has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 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) [2022-02-10 23:25:22,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:25:22,384 INFO L93 Difference]: Finished difference Result 9516 states and 25024 transitions. [2022-02-10 23:25:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 23:25:22,385 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 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 105 [2022-02-10 23:25:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:25:22,403 INFO L225 Difference]: With dead ends: 9516 [2022-02-10 23:25:22,404 INFO L226 Difference]: Without dead ends: 9516 [2022-02-10 23:25:22,404 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2022-02-10 23:25:22,405 INFO L934 BasicCegarLoop]: 214 mSDtfsCounter, 682 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 343 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:25:22,405 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [682 Valid, 1894 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 337 Invalid, 0 Unknown, 343 Unchecked, 0.2s Time] [2022-02-10 23:25:22,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9516 states. [2022-02-10 23:25:22,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9516 to 7231. [2022-02-10 23:25:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7231 states, 7229 states have (on average 2.6256743671323837) internal successors, (18981), 7230 states have internal predecessors, (18981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:25:22,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7231 states to 7231 states and 18981 transitions. [2022-02-10 23:25:22,559 INFO L78 Accepts]: Start accepts. Automaton has 7231 states and 18981 transitions. Word has length 105 [2022-02-10 23:25:22,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:25:22,559 INFO L470 AbstractCegarLoop]: Abstraction has 7231 states and 18981 transitions. [2022-02-10 23:25:22,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 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) [2022-02-10 23:25:22,559 INFO L276 IsEmpty]: Start isEmpty. Operand 7231 states and 18981 transitions. [2022-02-10 23:25:22,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 23:25:22,573 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:25:22,573 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:22,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:22,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-10 23:25:22,799 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-10 23:25:22,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:25:22,800 INFO L85 PathProgramCache]: Analyzing trace with hash -21136730, now seen corresponding path program 1 times [2022-02-10 23:25:22,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:25:22,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416467418] [2022-02-10 23:25:22,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:22,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:25:22,823 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-10 23:25:22,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330631475] [2022-02-10 23:25:22,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:25:22,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:25:22,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:25:22,835 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:25:22,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-10 23:25:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:23,053 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:25:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:25:23,226 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:25:23,226 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:25:23,227 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-02-10 23:25:23,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining) [2022-02-10 23:25:23,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining) [2022-02-10 23:25:23,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-02-10 23:25:23,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-02-10 23:25:23,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-02-10 23:25:23,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-10 23:25:23,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-10 23:25:23,450 INFO L733 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:25:23,453 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 23:25:23,453 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 23:25:23,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 11:25:23 BasicIcfg [2022-02-10 23:25:23,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 23:25:23,527 INFO L158 Benchmark]: Toolchain (without parser) took 31873.74ms. Allocated memory was 185.6MB in the beginning and 593.5MB in the end (delta: 407.9MB). Free memory was 129.1MB in the beginning and 319.3MB in the end (delta: -190.2MB). Peak memory consumption was 219.0MB. Max. memory is 8.0GB. [2022-02-10 23:25:23,527 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 185.6MB. Free memory was 147.2MB in the beginning and 147.1MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 23:25:23,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.33ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 129.0MB in the beginning and 220.1MB in the end (delta: -91.1MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. [2022-02-10 23:25:23,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.89ms. Allocated memory is still 260.0MB. Free memory was 220.1MB in the beginning and 217.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 23:25:23,528 INFO L158 Benchmark]: Boogie Preprocessor took 47.50ms. Allocated memory is still 260.0MB. Free memory was 217.5MB in the beginning and 215.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 23:25:23,528 INFO L158 Benchmark]: RCFGBuilder took 433.57ms. Allocated memory is still 260.0MB. Free memory was 215.9MB in the beginning and 199.6MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-02-10 23:25:23,528 INFO L158 Benchmark]: TraceAbstraction took 30822.62ms. Allocated memory was 260.0MB in the beginning and 593.5MB in the end (delta: 333.4MB). Free memory was 199.1MB in the beginning and 319.3MB in the end (delta: -120.2MB). Peak memory consumption was 214.3MB. Max. memory is 8.0GB. [2022-02-10 23:25:23,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 185.6MB. Free memory was 147.2MB in the beginning and 147.1MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 480.33ms. Allocated memory was 185.6MB in the beginning and 260.0MB in the end (delta: 74.4MB). Free memory was 129.0MB in the beginning and 220.1MB in the end (delta: -91.1MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 81.89ms. Allocated memory is still 260.0MB. Free memory was 220.1MB in the beginning and 217.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.50ms. Allocated memory is still 260.0MB. Free memory was 217.5MB in the beginning and 215.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 433.57ms. Allocated memory is still 260.0MB. Free memory was 215.9MB in the beginning and 199.6MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 30822.62ms. Allocated memory was 260.0MB in the beginning and 593.5MB in the end (delta: 333.4MB). Free memory was 199.1MB in the beginning and 319.3MB in the end (delta: -120.2MB). Peak memory consumption was 214.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 746]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 static char buffer[10]; VAL [buffer={3:0}] [L683] 0 static unsigned int first; VAL [buffer={3:0}, first=0] [L684] 0 static unsigned int next; VAL [buffer={3:0}, first=0, next=0] [L685] 0 static int buffer_size; VAL [buffer={3:0}, buffer_size=0, first=0, next=0] [L686] 0 _Bool send, receive; VAL [buffer={3:0}, buffer_size=0, first=0, next=0, receive=0, send=0] [L687] 0 pthread_mutex_t m; VAL [buffer={3:0}, buffer_size=0, first=0, m={4:0}, next=0, receive=0, send=0] [L756] 0 pthread_t id1, id2; VAL [buffer={3:0}, buffer_size=0, first=0, id1={5:0}, id2={6:0}, m={4:0}, next=0, receive=0, send=0] [L758] CALL 0 initLog(10) [L690] 0 buffer_size = max VAL [\old(max)=10, buffer={3:0}, buffer_size=10, first=0, m={4:0}, max=10, next=0, receive=0, send=0] [L691] EXPR 0 next = 0 VAL [\old(max)=10, buffer={3:0}, buffer_size=10, first=0, m={4:0}, max=10, next=0, receive=0, send=0] [L691] 0 first = next = 0 VAL [\old(max)=10, buffer={3:0}, buffer_size=10, first=0, m={4:0}, max=10, next=0, receive=0, send=0] [L758] RET 0 initLog(10) [L759] 0 send=1 VAL [buffer={3:0}, buffer_size=10, first=0, id1={5:0}, id2={6:0}, m={4:0}, next=0, receive=0, send=1] [L760] 0 receive=0 VAL [buffer={3:0}, buffer_size=10, first=0, id1={5:0}, id2={6:0}, m={4:0}, next=0, receive=0, send=1] [L761] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [buffer={3:0}, buffer_size=10, first=0, id1={5:0}, id2={6:0}, m={4:0}, next=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=1, receive=0, send=1] [L723] 1 int i; VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=0, receive=0, send=1] [L724] 1 i=0 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L724] COND TRUE 1 i<7 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L762] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [buffer={3:0}, buffer_size=10, first=0, id1={5:0}, id2={6:0}, m={4:0}, next=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=2, receive=0, send=1] [L739] 2 int i; VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=0, receive=0, send=1] [L740] 2 i=0 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L740] COND TRUE 2 i<7 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L743] COND FALSE 2 !(\read(receive)) VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L740] 2 i++ VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=1, m={4:0}, next=0, receive=0, send=1] [L740] COND TRUE 2 i<7 VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=1, m={4:0}, next=0, receive=0, send=1] [L727] COND TRUE 1 \read(send) VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L729] CALL 1 insertLogElement(i) [L707] COND TRUE 1 next < buffer_size && buffer_size > 0 VAL [\old(b)=0, b=0, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=0, receive=0, send=1] [L709] 1 buffer[next] = b VAL [\old(b)=0, b=0, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=0, receive=0, send=1] [L710] 1 next = (next+1)%buffer_size VAL [\old(b)=0, b=0, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=1, receive=0, send=1] [L712] COND TRUE 1 next 0 && first < buffer_size VAL [buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=1, receive=1, send=0] [L697] 2 first++ VAL [buffer={3:0}, buffer_size=10, first=1, m={4:0}, next=1, receive=1, send=0] [L698] EXPR 2 buffer[first-1] VAL [buffer={3:0}, buffer[first-1]=0, buffer_size=10, first=1, m={4:0}, next=1, receive=1, send=0] [L698] 2 return buffer[first-1]; VAL [\result=0, buffer={3:0}, buffer[first-1]=0, buffer_size=10, first=1, m={4:0}, next=1, receive=1, send=0] [L745] RET, EXPR 2 removeLogElement() [L745] COND FALSE 2 !(removeLogElement()==i) VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=1, m={4:0}, next=1, receive=1, removeLogElement()=0, send=0] [L746] 2 reach_error() VAL [arg={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=1, m={4:0}, next=1, receive=1, send=0] - UnprovableResult [Line: 761]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 213 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 30.6s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.2s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9765 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9765 mSDsluCounter, 18033 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 3218 IncrementalHoareTripleChecker+Unchecked, 15401 mSDsCounter, 210 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2350 IncrementalHoareTripleChecker+Invalid, 5778 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 210 mSolverCounterUnsat, 2957 mSDtfsCounter, 2350 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1296 GetRequests, 1019 SyntacticMatches, 2 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1346 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8362occurred in iteration=12, InterpolantAutomatonStates: 211, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 34122 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 1513 NumberOfCodeBlocks, 1513 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1389 ConstructedInterpolants, 229 QuantifiedInterpolants, 18823 SizeOfPredicates, 135 NumberOfNonLiveVariables, 3101 ConjunctsInSsa, 312 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-10 23:25:23,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...