/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 02:51:52,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 02:51:52,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 02:51:52,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 02:51:52,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 02:51:52,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 02:51:52,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 02:51:52,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 02:51:52,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 02:51:52,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 02:51:52,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 02:51:52,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 02:51:52,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 02:51:52,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 02:51:52,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 02:51:52,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 02:51:52,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 02:51:52,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 02:51:52,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 02:51:52,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 02:51:52,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-18 02:51:52,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 02:51:52,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 02:51:52,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 02:51:52,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 02:51:52,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 02:51:52,465 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 02:51:52,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 02:51:52,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 02:51:52,465 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 02:51:52,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 02:51:52,466 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 02:51:52,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 02:51:52,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 02:51:52,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 02:51:52,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 02:51:52,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 02:51:52,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 02:51:52,467 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 02:51:52,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 02:51:52,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 02:51:52,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 02:51:52,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 02:51:52,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 02:51:52,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 02:51:52,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 02:51:52,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:51:52,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 02:51:52,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 02:51:52,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 02:51:52,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 02:51:52,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 02:51:52,469 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 02:51:52,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 02:51:52,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 02:51:52,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 02:51:52,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 02:51:52,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 02:51:52,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 02:51:52,671 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 02:51:52,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2022-01-18 02:51:52,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1611ba4/fd10c743965b40bcb1a270441f07bde4/FLAG84369a98d [2022-01-18 02:51:53,171 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 02:51:53,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2022-01-18 02:51:53,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1611ba4/fd10c743965b40bcb1a270441f07bde4/FLAG84369a98d [2022-01-18 02:51:53,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1611ba4/fd10c743965b40bcb1a270441f07bde4 [2022-01-18 02:51:53,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 02:51:53,194 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 02:51:53,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 02:51:53,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 02:51:53,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 02:51:53,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8272f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53, skipping insertion in model container [2022-01-18 02:51:53,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 02:51:53,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 02:51:53,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2022-01-18 02:51:53,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:51:53,399 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 02:51:53,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c[2957,2970] [2022-01-18 02:51:53,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:51:53,430 INFO L208 MainTranslator]: Completed translation [2022-01-18 02:51:53,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53 WrapperNode [2022-01-18 02:51:53,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 02:51:53,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 02:51:53,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 02:51:53,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 02:51:53,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,459 INFO L137 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2022-01-18 02:51:53,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 02:51:53,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 02:51:53,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 02:51:53,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 02:51:53,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 02:51:53,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 02:51:53,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 02:51:53,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 02:51:53,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (1/1) ... [2022-01-18 02:51:53,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:51:53,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:53,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 02:51:53,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 02:51:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 02:51:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 02:51:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 02:51:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 02:51:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 02:51:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 02:51:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 02:51:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 02:51:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 02:51:53,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 02:51:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 02:51:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 02:51:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 02:51:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 02:51:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 02:51:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 02:51:53,547 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 02:51:53,612 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 02:51:53,614 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 02:51:53,854 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 02:51:53,903 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 02:51:53,904 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-18 02:51:53,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:51:53 BoogieIcfgContainer [2022-01-18 02:51:53,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 02:51:53,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 02:51:53,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 02:51:53,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 02:51:53,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 02:51:53" (1/3) ... [2022-01-18 02:51:53,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5667b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:51:53, skipping insertion in model container [2022-01-18 02:51:53,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:51:53" (2/3) ... [2022-01-18 02:51:53,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5667b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:51:53, skipping insertion in model container [2022-01-18 02:51:53,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:51:53" (3/3) ... [2022-01-18 02:51:53,914 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2022-01-18 02:51:53,919 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 02:51:53,919 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 02:51:53,919 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 02:51:53,920 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 02:51:53,975 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,976 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,977 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,977 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,977 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,978 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,980 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,980 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,981 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,982 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,982 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,982 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,983 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,983 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,983 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,983 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,984 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,985 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,986 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,986 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,986 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,996 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,996 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,997 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,997 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,997 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,997 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,998 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,998 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,998 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,998 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:53,998 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,003 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,003 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,003 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,003 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,004 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,006 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,007 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,008 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,008 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,008 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,009 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,009 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,009 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,009 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,010 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,010 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,010 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:51:54,014 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 02:51:54,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 02:51:54,074 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 02:51:54,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 02:51:54,091 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 117 places, 115 transitions, 254 flow [2022-01-18 02:51:54,232 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2149 states, 2148 states have (on average 3.833798882681564) internal successors, (8235), 2148 states have internal predecessors, (8235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:54,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 2149 states, 2148 states have (on average 3.833798882681564) internal successors, (8235), 2148 states have internal predecessors, (8235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:54,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-18 02:51:54,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:54,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:54,278 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:54,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:54,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1402511369, now seen corresponding path program 1 times [2022-01-18 02:51:54,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:54,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695749178] [2022-01-18 02:51:54,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:54,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:51:54,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:54,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695749178] [2022-01-18 02:51:54,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695749178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:51:54,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:51:54,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 02:51:54,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978167655] [2022-01-18 02:51:54,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:54,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 02:51:54,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:54,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 02:51:54,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 02:51:54,616 INFO L87 Difference]: Start difference. First operand has 2149 states, 2148 states have (on average 3.833798882681564) internal successors, (8235), 2148 states have internal predecessors, (8235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:54,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:54,700 INFO L93 Difference]: Finished difference Result 2149 states and 7451 transitions. [2022-01-18 02:51:54,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 02:51:54,703 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-01-18 02:51:54,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:54,739 INFO L225 Difference]: With dead ends: 2149 [2022-01-18 02:51:54,740 INFO L226 Difference]: Without dead ends: 2147 [2022-01-18 02:51:54,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 02:51:54,745 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:54,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:51:54,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2022-01-18 02:51:54,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2147. [2022-01-18 02:51:54,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2147 states, 2146 states have (on average 3.4711090400745572) internal successors, (7449), 2146 states have internal predecessors, (7449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:54,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 7449 transitions. [2022-01-18 02:51:54,908 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 7449 transitions. Word has length 84 [2022-01-18 02:51:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:54,909 INFO L470 AbstractCegarLoop]: Abstraction has 2147 states and 7449 transitions. [2022-01-18 02:51:54,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 7449 transitions. [2022-01-18 02:51:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-18 02:51:54,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:54,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:54,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 02:51:54,921 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:54,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:54,924 INFO L85 PathProgramCache]: Analyzing trace with hash -388158952, now seen corresponding path program 1 times [2022-01-18 02:51:54,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:54,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312156457] [2022-01-18 02:51:54,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:54,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:51:55,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:55,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312156457] [2022-01-18 02:51:55,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312156457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:51:55,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:51:55,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 02:51:55,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491620524] [2022-01-18 02:51:55,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:55,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:51:55,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:55,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:51:55,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:51:55,598 INFO L87 Difference]: Start difference. First operand 2147 states and 7449 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:55,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:55,980 INFO L93 Difference]: Finished difference Result 3473 states and 12228 transitions. [2022-01-18 02:51:55,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 02:51:55,980 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-01-18 02:51:55,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:56,007 INFO L225 Difference]: With dead ends: 3473 [2022-01-18 02:51:56,007 INFO L226 Difference]: Without dead ends: 3473 [2022-01-18 02:51:56,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-18 02:51:56,012 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 161 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:56,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 345 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:51:56,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3473 states. [2022-01-18 02:51:56,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3473 to 2589. [2022-01-18 02:51:56,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2589 states, 2588 states have (on average 3.493817619783617) internal successors, (9042), 2588 states have internal predecessors, (9042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2589 states to 2589 states and 9042 transitions. [2022-01-18 02:51:56,134 INFO L78 Accepts]: Start accepts. Automaton has 2589 states and 9042 transitions. Word has length 84 [2022-01-18 02:51:56,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:56,136 INFO L470 AbstractCegarLoop]: Abstraction has 2589 states and 9042 transitions. [2022-01-18 02:51:56,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:56,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2589 states and 9042 transitions. [2022-01-18 02:51:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 02:51:56,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:56,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:56,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 02:51:56,148 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:56,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:56,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1351562538, now seen corresponding path program 1 times [2022-01-18 02:51:56,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:56,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644492177] [2022-01-18 02:51:56,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:56,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 02:51:56,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:56,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644492177] [2022-01-18 02:51:56,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644492177] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:51:56,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:51:56,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 02:51:56,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997280928] [2022-01-18 02:51:56,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:56,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:51:56,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:56,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:51:56,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 02:51:56,773 INFO L87 Difference]: Start difference. First operand 2589 states and 9042 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:56,951 INFO L93 Difference]: Finished difference Result 3067 states and 10914 transitions. [2022-01-18 02:51:56,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 02:51:56,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-01-18 02:51:56,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:56,968 INFO L225 Difference]: With dead ends: 3067 [2022-01-18 02:51:56,968 INFO L226 Difference]: Without dead ends: 2623 [2022-01-18 02:51:56,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-01-18 02:51:56,974 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 132 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:56,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 218 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:51:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2022-01-18 02:51:57,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2623. [2022-01-18 02:51:57,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2623 states, 2622 states have (on average 3.537757437070938) internal successors, (9276), 2622 states have internal predecessors, (9276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2623 states to 2623 states and 9276 transitions. [2022-01-18 02:51:57,069 INFO L78 Accepts]: Start accepts. Automaton has 2623 states and 9276 transitions. Word has length 87 [2022-01-18 02:51:57,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:57,070 INFO L470 AbstractCegarLoop]: Abstraction has 2623 states and 9276 transitions. [2022-01-18 02:51:57,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:57,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2623 states and 9276 transitions. [2022-01-18 02:51:57,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-18 02:51:57,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:57,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:57,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 02:51:57,080 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:57,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:57,084 INFO L85 PathProgramCache]: Analyzing trace with hash 501997729, now seen corresponding path program 1 times [2022-01-18 02:51:57,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:57,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126995739] [2022-01-18 02:51:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:57,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:57,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:51:57,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:57,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126995739] [2022-01-18 02:51:57,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126995739] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:57,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146354364] [2022-01-18 02:51:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:57,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:57,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:51:57,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:51:57,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 02:51:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:57,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 02:51:57,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:51:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:51:58,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:51:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:51:58,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146354364] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 02:51:58,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 02:51:58,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 9] total 19 [2022-01-18 02:51:58,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407097356] [2022-01-18 02:51:58,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:58,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 02:51:58,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:58,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 02:51:58,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2022-01-18 02:51:58,510 INFO L87 Difference]: Start difference. First operand 2623 states and 9276 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:58,669 INFO L93 Difference]: Finished difference Result 5337 states and 18871 transitions. [2022-01-18 02:51:58,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:51:58,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-18 02:51:58,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:58,716 INFO L225 Difference]: With dead ends: 5337 [2022-01-18 02:51:58,716 INFO L226 Difference]: Without dead ends: 5337 [2022-01-18 02:51:58,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2022-01-18 02:51:58,720 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 179 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:58,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 579 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:51:58,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5337 states. [2022-01-18 02:51:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5337 to 3051. [2022-01-18 02:51:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 3050 states have (on average 3.5931147540983606) internal successors, (10959), 3050 states have internal predecessors, (10959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 10959 transitions. [2022-01-18 02:51:58,880 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 10959 transitions. Word has length 88 [2022-01-18 02:51:58,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:58,881 INFO L470 AbstractCegarLoop]: Abstraction has 3051 states and 10959 transitions. [2022-01-18 02:51:58,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 10959 transitions. [2022-01-18 02:51:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-18 02:51:58,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:58,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:58,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 02:51:59,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:51:59,107 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:59,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:59,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1707436973, now seen corresponding path program 2 times [2022-01-18 02:51:59,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:59,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896954891] [2022-01-18 02:51:59,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:59,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:59,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:51:59,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:59,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896954891] [2022-01-18 02:51:59,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896954891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:51:59,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:51:59,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:51:59,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711318264] [2022-01-18 02:51:59,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:59,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:51:59,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:59,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:51:59,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:51:59,205 INFO L87 Difference]: Start difference. First operand 3051 states and 10959 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:59,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:51:59,422 INFO L93 Difference]: Finished difference Result 5691 states and 20341 transitions. [2022-01-18 02:51:59,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 02:51:59,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-18 02:51:59,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:51:59,452 INFO L225 Difference]: With dead ends: 5691 [2022-01-18 02:51:59,452 INFO L226 Difference]: Without dead ends: 5691 [2022-01-18 02:51:59,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 02:51:59,453 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 169 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:51:59,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 621 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:51:59,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2022-01-18 02:51:59,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 4507. [2022-01-18 02:51:59,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4507 states, 4506 states have (on average 3.6034176653351087) internal successors, (16237), 4506 states have internal predecessors, (16237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:59,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4507 states to 4507 states and 16237 transitions. [2022-01-18 02:51:59,600 INFO L78 Accepts]: Start accepts. Automaton has 4507 states and 16237 transitions. Word has length 88 [2022-01-18 02:51:59,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:51:59,601 INFO L470 AbstractCegarLoop]: Abstraction has 4507 states and 16237 transitions. [2022-01-18 02:51:59,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:51:59,602 INFO L276 IsEmpty]: Start isEmpty. Operand 4507 states and 16237 transitions. [2022-01-18 02:51:59,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-18 02:51:59,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:51:59,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:51:59,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 02:51:59,617 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:51:59,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:51:59,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1436579059, now seen corresponding path program 3 times [2022-01-18 02:51:59,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:51:59,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832268796] [2022-01-18 02:51:59,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:51:59,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:51:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:51:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:51:59,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:51:59,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832268796] [2022-01-18 02:51:59,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832268796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:51:59,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:51:59,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:51:59,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164222195] [2022-01-18 02:51:59,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:51:59,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:51:59,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:51:59,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:51:59,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:51:59,750 INFO L87 Difference]: Start difference. First operand 4507 states and 16237 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:52:00,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:52:00,002 INFO L93 Difference]: Finished difference Result 8179 states and 29322 transitions. [2022-01-18 02:52:00,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 02:52:00,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-18 02:52:00,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:52:00,036 INFO L225 Difference]: With dead ends: 8179 [2022-01-18 02:52:00,036 INFO L226 Difference]: Without dead ends: 8179 [2022-01-18 02:52:00,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 02:52:00,037 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 157 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:52:00,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 632 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:52:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-01-18 02:52:00,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 4543. [2022-01-18 02:52:00,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4543 states, 4542 states have (on average 3.613386173491854) internal successors, (16412), 4542 states have internal predecessors, (16412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:52:00,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4543 states to 4543 states and 16412 transitions. [2022-01-18 02:52:00,294 INFO L78 Accepts]: Start accepts. Automaton has 4543 states and 16412 transitions. Word has length 88 [2022-01-18 02:52:00,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:52:00,294 INFO L470 AbstractCegarLoop]: Abstraction has 4543 states and 16412 transitions. [2022-01-18 02:52:00,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:52:00,295 INFO L276 IsEmpty]: Start isEmpty. Operand 4543 states and 16412 transitions. [2022-01-18 02:52:00,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-18 02:52:00,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:52:00,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:52:00,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 02:52:00,308 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:52:00,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:52:00,308 INFO L85 PathProgramCache]: Analyzing trace with hash 290814453, now seen corresponding path program 4 times [2022-01-18 02:52:00,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:52:00,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13641344] [2022-01-18 02:52:00,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:52:00,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:52:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:52:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:52:00,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:52:00,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13641344] [2022-01-18 02:52:00,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13641344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:52:00,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:52:00,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:52:00,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592030119] [2022-01-18 02:52:00,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:52:00,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:52:00,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:52:00,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:52:00,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:52:00,443 INFO L87 Difference]: Start difference. First operand 4543 states and 16412 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:52:00,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:52:00,822 INFO L93 Difference]: Finished difference Result 7265 states and 26517 transitions. [2022-01-18 02:52:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 02:52:00,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-18 02:52:00,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:52:00,851 INFO L225 Difference]: With dead ends: 7265 [2022-01-18 02:52:00,851 INFO L226 Difference]: Without dead ends: 7265 [2022-01-18 02:52:00,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 02:52:00,852 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 124 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 02:52:00,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 593 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 02:52:00,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-01-18 02:52:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 5731. [2022-01-18 02:52:01,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5731 states, 5730 states have (on average 3.7275741710296684) internal successors, (21359), 5730 states have internal predecessors, (21359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:52:01,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5731 states to 5731 states and 21359 transitions. [2022-01-18 02:52:01,031 INFO L78 Accepts]: Start accepts. Automaton has 5731 states and 21359 transitions. Word has length 88 [2022-01-18 02:52:01,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:52:01,032 INFO L470 AbstractCegarLoop]: Abstraction has 5731 states and 21359 transitions. [2022-01-18 02:52:01,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:52:01,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5731 states and 21359 transitions. [2022-01-18 02:52:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-18 02:52:01,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:52:01,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:52:01,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 02:52:01,049 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:52:01,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:52:01,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1359587163, now seen corresponding path program 5 times [2022-01-18 02:52:01,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:52:01,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476101690] [2022-01-18 02:52:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:52:01,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:52:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:52:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:52:01,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:52:01,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476101690] [2022-01-18 02:52:01,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476101690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:52:01,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:52:01,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 02:52:01,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254098089] [2022-01-18 02:52:01,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:52:01,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 02:52:01,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:52:01,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 02:52:01,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 02:52:01,240 INFO L87 Difference]: Start difference. First operand 5731 states and 21359 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:52:01,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:52:01,507 INFO L93 Difference]: Finished difference Result 8903 states and 33659 transitions. [2022-01-18 02:52:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 02:52:01,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-18 02:52:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:52:01,550 INFO L225 Difference]: With dead ends: 8903 [2022-01-18 02:52:01,550 INFO L226 Difference]: Without dead ends: 8903 [2022-01-18 02:52:01,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-18 02:52:01,551 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 221 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:52:01,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 437 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:52:01,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2022-01-18 02:52:01,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 6055. [2022-01-18 02:52:01,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6055 states, 6054 states have (on average 3.738024446646845) internal successors, (22630), 6054 states have internal predecessors, (22630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:52:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6055 states to 6055 states and 22630 transitions. [2022-01-18 02:52:01,767 INFO L78 Accepts]: Start accepts. Automaton has 6055 states and 22630 transitions. Word has length 88 [2022-01-18 02:52:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:52:01,767 INFO L470 AbstractCegarLoop]: Abstraction has 6055 states and 22630 transitions. [2022-01-18 02:52:01,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:52:01,768 INFO L276 IsEmpty]: Start isEmpty. Operand 6055 states and 22630 transitions. [2022-01-18 02:52:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 02:52:01,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:52:01,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 02:52:01,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 02:52:01,793 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 02:52:01,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:52:01,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2131417439, now seen corresponding path program 1 times [2022-01-18 02:52:01,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:52:01,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981406644] [2022-01-18 02:52:01,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:52:01,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:52:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:52:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:52:03,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:52:03,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981406644] [2022-01-18 02:52:03,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981406644] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:52:03,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475307034] [2022-01-18 02:52:03,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:52:03,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:52:03,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:52:03,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:52:03,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 02:52:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:52:03,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 41 conjunts are in the unsatisfiable core [2022-01-18 02:52:03,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-01-18 03:04:47,003 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 03:04:47,004 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 03:04:47,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 03:04:47,021 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 03:04:47,021 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 03:04:47,209 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,SelfDestructingSolverStorable8 [2022-01-18 03:04:47,209 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 5ms.. [2022-01-18 03:04:47,211 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 03:04:47,211 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 03:04:47,211 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 03:04:47,213 INFO L732 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1] [2022-01-18 03:04:47,214 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 03:04:47,214 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 03:04:47,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 03:04:47 BasicIcfg [2022-01-18 03:04:47,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 03:04:47,217 INFO L158 Benchmark]: Toolchain (without parser) took 774022.55ms. Allocated memory was 394.3MB in the beginning and 790.6MB in the end (delta: 396.4MB). Free memory was 335.7MB in the beginning and 458.6MB in the end (delta: -122.9MB). Peak memory consumption was 507.1MB. Max. memory is 16.0GB. [2022-01-18 03:04:47,217 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 394.3MB. Free memory is still 352.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:04:47,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.48ms. Allocated memory was 394.3MB in the beginning and 486.5MB in the end (delta: 92.3MB). Free memory was 335.6MB in the beginning and 455.1MB in the end (delta: -119.5MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. [2022-01-18 03:04:47,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.23ms. Allocated memory is still 486.5MB. Free memory was 455.1MB in the beginning and 454.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:04:47,217 INFO L158 Benchmark]: Boogie Preprocessor took 21.59ms. Allocated memory is still 486.5MB. Free memory was 454.1MB in the beginning and 452.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 03:04:47,218 INFO L158 Benchmark]: RCFGBuilder took 423.36ms. Allocated memory is still 486.5MB. Free memory was 452.0MB in the beginning and 432.1MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-18 03:04:47,218 INFO L158 Benchmark]: TraceAbstraction took 773309.03ms. Allocated memory was 486.5MB in the beginning and 790.6MB in the end (delta: 304.1MB). Free memory was 431.0MB in the beginning and 458.6MB in the end (delta: -27.5MB). Peak memory consumption was 511.8MB. Max. memory is 16.0GB. [2022-01-18 03:04:47,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 394.3MB. Free memory is still 352.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 235.48ms. Allocated memory was 394.3MB in the beginning and 486.5MB in the end (delta: 92.3MB). Free memory was 335.6MB in the beginning and 455.1MB in the end (delta: -119.5MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 28.23ms. Allocated memory is still 486.5MB. Free memory was 455.1MB in the beginning and 454.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 21.59ms. Allocated memory is still 486.5MB. Free memory was 454.1MB in the beginning and 452.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 423.36ms. Allocated memory is still 486.5MB. Free memory was 452.0MB in the beginning and 432.1MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 773309.03ms. Allocated memory was 486.5MB in the beginning and 790.6MB in the end (delta: 304.1MB). Free memory was 431.0MB in the beginning and 458.6MB in the end (delta: -27.5MB). Peak memory consumption was 511.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 5ms.. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 5ms.. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 5ms.. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 92 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 5ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 133 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 773.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1143 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1143 mSDsluCounter, 3511 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2875 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1263 IncrementalHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 990 mSDtfsCounter, 1263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6055occurred in iteration=8, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 12372 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 783 NumberOfCodeBlocks, 783 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 861 ConstructedInterpolants, 0 QuantifiedInterpolants, 4109 SizeOfPredicates, 8 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown