/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-LoopLockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-14 09:06:59,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 09:06:59,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 09:06:59,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-14 09:06:59,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-14 09:06:59,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-14 09:06:59,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-14 09:06:59,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-14 09:06:59,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-14 09:06:59,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-14 09:06:59,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-14 09:06:59,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-14 09:06:59,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-14 09:06:59,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-14 09:06:59,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-14 09:06:59,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-14 09:06:59,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-14 09:06:59,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-14 09:06:59,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-14 09:06:59,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-14 09:06:59,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-14 09:06:59,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-14 09:06:59,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-14 09:06:59,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-14 09:06:59,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-11-14 09:06:59,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-14 09:06:59,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-14 09:06:59,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-14 09:06:59,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-14 09:06:59,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-14 09:06:59,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-14 09:06:59,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-14 09:06:59,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-14 09:06:59,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 09:06:59,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 09:06:59,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 09:06:59,224 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-LoopLockstep.epf [2021-11-14 09:06:59,248 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 09:06:59,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 09:06:59,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-14 09:06:59,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-14 09:06:59,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 09:06:59,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-14 09:06:59,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 09:06:59,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 09:06:59,251 INFO L138 SettingsManager]: * Use SBE=true [2021-11-14 09:06:59,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 09:06:59,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-14 09:06:59,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 09:06:59,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-14 09:06:59,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 09:06:59,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-14 09:06:59,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 09:06:59,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 09:06:59,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 09:06:59,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 09:06:59,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-14 09:06:59,253 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-14 09:06:59,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 09:06:59,253 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-14 09:06:59,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-14 09:06:59,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 09:06:59,253 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-14 09:06:59,254 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-14 09:06:59,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-14 09:06:59,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 09:06:59,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 09:06:59,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 09:06:59,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 09:06:59,470 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 09:06:59,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i [2021-11-14 09:06:59,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce76b6474/cc1aa391c2d44869b9dbc1bb720c1e8c/FLAGf5bf87417 [2021-11-14 09:06:59,969 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 09:06:59,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i [2021-11-14 09:06:59,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce76b6474/cc1aa391c2d44869b9dbc1bb720c1e8c/FLAGf5bf87417 [2021-11-14 09:07:00,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce76b6474/cc1aa391c2d44869b9dbc1bb720c1e8c [2021-11-14 09:07:00,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 09:07:00,325 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-14 09:07:00,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 09:07:00,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 09:07:00,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 09:07:00,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cdc1b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00, skipping insertion in model container [2021-11-14 09:07:00,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 09:07:00,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 09:07:00,615 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i[30212,30225] [2021-11-14 09:07:00,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 09:07:00,648 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 09:07:00,684 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_19-callback_racing.i[30212,30225] [2021-11-14 09:07:00,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 09:07:00,713 INFO L208 MainTranslator]: Completed translation [2021-11-14 09:07:00,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00 WrapperNode [2021-11-14 09:07:00,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 09:07:00,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 09:07:00,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 09:07:00,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 09:07:00,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 09:07:00,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 09:07:00,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 09:07:00,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 09:07:00,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 09:07:00,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 09:07:00,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 09:07:00,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 09:07:00,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (1/1) ... [2021-11-14 09:07:00,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 09:07:00,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:00,807 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) [2021-11-14 09:07:00,808 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 [2021-11-14 09:07:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-14 09:07:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-14 09:07:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-14 09:07:00,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-14 09:07:00,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-14 09:07:00,859 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-14 09:07:00,859 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-14 09:07:00,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-14 09:07:00,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-14 09:07:00,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 09:07:00,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 09:07:00,861 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-14 09:07:01,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 09:07:01,168 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-14 09:07:01,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 09:07:01 BoogieIcfgContainer [2021-11-14 09:07:01,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 09:07:01,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-14 09:07:01,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-14 09:07:01,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-14 09:07:01,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 09:07:00" (1/3) ... [2021-11-14 09:07:01,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0c3827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 09:07:01, skipping insertion in model container [2021-11-14 09:07:01,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 09:07:00" (2/3) ... [2021-11-14 09:07:01,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0c3827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 09:07:01, skipping insertion in model container [2021-11-14 09:07:01,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 09:07:01" (3/3) ... [2021-11-14 09:07:01,174 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_19-callback_racing.i [2021-11-14 09:07:01,177 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-14 09:07:01,177 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-14 09:07:01,177 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-14 09:07:01,178 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-14 09:07:01,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:01,202 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-14 09:07:01,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 09:07:01,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:01,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 09:07:01,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-14 09:07:01,267 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2021-11-14 09:07:01,273 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=PARTIAL_ORDER_FA, 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 [2021-11-14 09:07:01,273 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 09:07:01,437 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:07:01,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:01,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1987578183, now seen corresponding path program 1 times [2021-11-14 09:07:01,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:01,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171596244] [2021-11-14 09:07:01,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:01,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:01,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:01,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171596244] [2021-11-14 09:07:01,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171596244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:01,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:01,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 09:07:01,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815124907] [2021-11-14 09:07:01,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:01,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 09:07:01,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:01,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 09:07:01,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-14 09:07:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:01,741 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:01,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:01,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:01,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:01,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-14 09:07:01,897 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:07:01,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:01,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1439481607, now seen corresponding path program 1 times [2021-11-14 09:07:01,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:01,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32549833] [2021-11-14 09:07:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:01,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:01,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:01,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32549833] [2021-11-14 09:07:01,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32549833] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 09:07:01,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550721688] [2021-11-14 09:07:01,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:01,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 09:07:01,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:01,971 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) [2021-11-14 09:07:01,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-14 09:07:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:02,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 09:07:02,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 09:07:02,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:02,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 09:07:02,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:02,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550721688] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 09:07:02,437 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 09:07:02,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 09:07:02,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768152255] [2021-11-14 09:07:02,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 09:07:02,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 09:07:02,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:02,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 09:07:02,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 09:07:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:02,440 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:02,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:02,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:02,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 09:07:02,504 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 09:07:02,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-14 09:07:02,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-14 09:07:02,715 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-14 09:07:02,715 INFO L308 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE (1/2) [2021-11-14 09:07:02,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 09:07:02,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:02,724 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 09:07:02,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-11-14 09:07:02,765 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 09:07:02,766 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=PARTIAL_ORDER_FA, 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 [2021-11-14 09:07:02,766 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 09:07:02,817 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 09:07:02,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:02,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1742465114, now seen corresponding path program 1 times [2021-11-14 09:07:02,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:02,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78361874] [2021-11-14 09:07:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:02,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:02,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:02,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:02,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78361874] [2021-11-14 09:07:02,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78361874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:02,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:02,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 09:07:02,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783394007] [2021-11-14 09:07:02,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:02,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 09:07:02,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:02,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 09:07:02,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-14 09:07:02,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:02,894 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:02,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:02,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:02,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-14 09:07:02,938 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 09:07:02,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1195842746, now seen corresponding path program 1 times [2021-11-14 09:07:02,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:02,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195315024] [2021-11-14 09:07:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:02,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 09:07:02,956 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 09:07:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 09:07:02,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 09:07:02,987 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 09:07:02,987 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-14 09:07:02,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-14 09:07:02,988 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-14 09:07:02,989 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2021-11-14 09:07:02,990 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 09:07:02,990 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-14 09:07:02,997 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,997 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,997 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,997 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,997 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,998 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:02,999 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,000 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,000 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,000 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,000 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,000 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,000 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,000 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,000 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,001 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,002 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,003 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,003 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,003 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,003 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,003 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,003 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,003 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,003 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,003 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,004 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:03,005 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-14 09:07:03,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 09:07:03,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:03,007 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 09:07:03,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2021-11-14 09:07:03,010 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of2ForFork0 ======== [2021-11-14 09:07:03,011 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=PARTIAL_ORDER_FA, 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 [2021-11-14 09:07:03,011 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 09:07:03,068 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:07:03,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:03,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1712458129, now seen corresponding path program 1 times [2021-11-14 09:07:03,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:03,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768414755] [2021-11-14 09:07:03,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:03,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:03,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:03,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:03,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768414755] [2021-11-14 09:07:03,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768414755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:03,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:03,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 09:07:03,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515544366] [2021-11-14 09:07:03,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:03,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 09:07:03,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:03,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 09:07:03,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-14 09:07:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:03,135 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:03,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:03,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:03,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-14 09:07:03,762 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:07:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:03,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1884981551, now seen corresponding path program 1 times [2021-11-14 09:07:03,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:03,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699286600] [2021-11-14 09:07:03,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:03,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:03,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:03,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:03,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699286600] [2021-11-14 09:07:03,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699286600] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 09:07:03,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895660472] [2021-11-14 09:07:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:03,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 09:07:03,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:03,807 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 09:07:03,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-14 09:07:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:03,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-14 09:07:03,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 09:07:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:03,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 09:07:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:04,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895660472] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 09:07:04,094 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 09:07:04,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-14 09:07:04,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265531973] [2021-11-14 09:07:04,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 09:07:04,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-14 09:07:04,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:04,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-14 09:07:04,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-14 09:07:04,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:04,096 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:04,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:04,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:04,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:04,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 09:07:04,348 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 09:07:04,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-14 09:07:04,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 09:07:04,566 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-14 09:07:04,566 INFO L308 ceAbstractionStarter]: Result for error location t_funThread1of2ForFork0 was SAFE (1/3) [2021-11-14 09:07:04,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 09:07:04,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:04,568 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 09:07:04,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2021-11-14 09:07:04,571 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 09:07:04,571 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=PARTIAL_ORDER_FA, 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 [2021-11-14 09:07:04,571 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 09:07:04,622 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 09:07:04,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:04,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1537380057, now seen corresponding path program 1 times [2021-11-14 09:07:04,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:04,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666679913] [2021-11-14 09:07:04,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:04,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 09:07:04,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:04,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666679913] [2021-11-14 09:07:04,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666679913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:04,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:04,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 09:07:04,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990111456] [2021-11-14 09:07:04,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:04,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 09:07:04,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:04,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 09:07:04,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-14 09:07:04,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:04,685 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:04,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:04,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:04,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:04,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-14 09:07:04,709 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 09:07:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:04,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1696113896, now seen corresponding path program 1 times [2021-11-14 09:07:04,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:04,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573075396] [2021-11-14 09:07:04,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:04,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:04,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:04,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573075396] [2021-11-14 09:07:04,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573075396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:04,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:04,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-14 09:07:04,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286855244] [2021-11-14 09:07:04,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:04,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 09:07:04,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:04,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 09:07:04,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-14 09:07:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:04,785 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:04,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:04,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:04,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-14 09:07:04,861 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 09:07:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1590309899, now seen corresponding path program 1 times [2021-11-14 09:07:04,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:04,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676517290] [2021-11-14 09:07:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:04,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 09:07:04,874 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 09:07:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 09:07:04,895 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 09:07:04,895 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 09:07:04,895 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-14 09:07:04,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-14 09:07:04,896 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-14 09:07:04,896 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/3) [2021-11-14 09:07:04,896 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 09:07:04,897 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-14 09:07:04,902 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,902 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,902 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,902 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,903 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,904 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,905 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,906 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,907 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,908 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,909 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,910 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,911 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,915 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,916 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:04,917 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-14 09:07:04,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 09:07:04,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:04,923 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 09:07:04,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2021-11-14 09:07:04,925 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 09:07:04,926 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=PARTIAL_ORDER_FA, 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 [2021-11-14 09:07:04,926 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 09:07:04,999 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 09:07:04,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:04,999 INFO L85 PathProgramCache]: Analyzing trace with hash 779213633, now seen corresponding path program 1 times [2021-11-14 09:07:04,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:04,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429862376] [2021-11-14 09:07:04,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:04,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:05,067 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-14 09:07:05,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:05,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429862376] [2021-11-14 09:07:05,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429862376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:05,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:05,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 09:07:05,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404838978] [2021-11-14 09:07:05,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:05,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 09:07:05,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:05,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 09:07:05,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-14 09:07:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,068 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:05,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 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) [2021-11-14 09:07:05,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:05,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-14 09:07:05,102 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 09:07:05,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:05,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1302143579, now seen corresponding path program 1 times [2021-11-14 09:07:05,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:05,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816495838] [2021-11-14 09:07:05,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:05,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 09:07:05,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:05,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816495838] [2021-11-14 09:07:05,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816495838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:05,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:05,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-14 09:07:05,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133951057] [2021-11-14 09:07:05,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:05,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 09:07:05,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 09:07:05,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-14 09:07:05,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,176 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:05,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:05,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:05,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:05,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:05,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-14 09:07:05,258 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 09:07:05,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:05,258 INFO L85 PathProgramCache]: Analyzing trace with hash 715512067, now seen corresponding path program 1 times [2021-11-14 09:07:05,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:05,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606198096] [2021-11-14 09:07:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:05,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-14 09:07:05,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:05,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606198096] [2021-11-14 09:07:05,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606198096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:05,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:05,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-14 09:07:05,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083773485] [2021-11-14 09:07:05,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:05,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 09:07:05,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:05,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 09:07:05,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-14 09:07:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,342 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:05,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:05,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:05,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:05,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:05,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-14 09:07:05,424 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 09:07:05,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:05,424 INFO L85 PathProgramCache]: Analyzing trace with hash 456037413, now seen corresponding path program 1 times [2021-11-14 09:07:05,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:05,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472402180] [2021-11-14 09:07:05,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:05,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 09:07:05,450 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 09:07:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 09:07:05,499 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 09:07:05,499 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 09:07:05,499 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-14 09:07:05,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-14 09:07:05,500 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-14 09:07:05,500 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/4) [2021-11-14 09:07:05,500 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 09:07:05,500 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,507 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,508 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,509 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,510 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,511 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,512 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,513 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,514 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 09:07:05,517 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-14 09:07:05,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 09:07:05,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:05,519 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 09:07:05,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2021-11-14 09:07:05,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread4of4ForFork0 ======== [2021-11-14 09:07:05,524 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=PARTIAL_ORDER_FA, 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 [2021-11-14 09:07:05,524 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 09:07:05,669 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:07:05,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:05,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1411208676, now seen corresponding path program 1 times [2021-11-14 09:07:05,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:05,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910791141] [2021-11-14 09:07:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:05,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-14 09:07:05,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:05,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910791141] [2021-11-14 09:07:05,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910791141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:05,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:05,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 09:07:05,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646957128] [2021-11-14 09:07:05,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:05,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 09:07:05,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:05,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 09:07:05,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-14 09:07:05,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,739 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:05,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:05,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:05,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-14 09:07:05,778 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:07:05,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:05,778 INFO L85 PathProgramCache]: Analyzing trace with hash -372776919, now seen corresponding path program 1 times [2021-11-14 09:07:05,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:05,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031399566] [2021-11-14 09:07:05,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:05,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-14 09:07:05,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:05,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031399566] [2021-11-14 09:07:05,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031399566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:05,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:05,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-14 09:07:05,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079044571] [2021-11-14 09:07:05,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:05,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 09:07:05,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:05,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 09:07:05,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-14 09:07:05,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,846 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:05,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:05,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:05,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:05,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-14 09:07:05,933 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:07:05,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:05,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1345584426, now seen corresponding path program 1 times [2021-11-14 09:07:05,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:05,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957963950] [2021-11-14 09:07:05,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:05,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-14 09:07:05,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:05,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957963950] [2021-11-14 09:07:05,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957963950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:05,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:05,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-14 09:07:05,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743912024] [2021-11-14 09:07:05,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:06,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 09:07:06,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:06,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 09:07:06,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-14 09:07:06,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:06,001 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:06,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:06,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:06,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:06,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:06,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-14 09:07:06,084 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:07:06,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:06,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1506752345, now seen corresponding path program 1 times [2021-11-14 09:07:06,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:06,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874170649] [2021-11-14 09:07:06,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:06,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:06,157 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-14 09:07:06,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:06,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874170649] [2021-11-14 09:07:06,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874170649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:07:06,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:07:06,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-14 09:07:06,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695482758] [2021-11-14 09:07:06,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:07:06,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 09:07:06,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:06,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 09:07:06,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-14 09:07:06,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:06,158 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:06,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:06,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:06,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:06,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 09:07:06,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:06,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:06,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 09:07:06,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 09:07:06,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 09:07:06,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-14 09:07:06,331 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:07:06,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:07:06,332 INFO L85 PathProgramCache]: Analyzing trace with hash -868535193, now seen corresponding path program 1 times [2021-11-14 09:07:06,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:07:06,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114171867] [2021-11-14 09:07:06,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:06,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:07:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:06,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:07:06,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114171867] [2021-11-14 09:07:06,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114171867] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 09:07:06,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662745287] [2021-11-14 09:07:06,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:07:06,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 09:07:06,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:07:06,405 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 09:07:06,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-14 09:07:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:07:06,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-14 09:07:06,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 09:07:07,000 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:07,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 09:07:07,327 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:07:07,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662745287] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 09:07:07,328 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 09:07:07,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2021-11-14 09:07:07,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811533387] [2021-11-14 09:07:07,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 09:07:07,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-14 09:07:07,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:07:07,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-14 09:07:07,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2021-11-14 09:07:07,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:07:07,329 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:07:07,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 12.045454545454545) internal successors, (265), 22 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:07:07,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:07:07,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 09:07:07,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 09:07:07,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 09:07:07,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:13:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:13:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 09:13:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 09:13:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 09:13:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 09:13:16,422 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 09:13:16,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-14 09:13:16,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-14 09:13:16,640 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-14 09:13:16,640 INFO L308 ceAbstractionStarter]: Result for error location t_funThread4of4ForFork0 was SAFE (1/5) [2021-11-14 09:13:16,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 09:13:16,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:13:16,664 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 09:13:16,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2021-11-14 09:13:16,687 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread2of4ForFork0 ======== [2021-11-14 09:13:16,687 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=PARTIAL_ORDER_FA, 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 [2021-11-14 09:13:16,687 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 09:13:16,859 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:13:16,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:13:16,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1638114255, now seen corresponding path program 1 times [2021-11-14 09:13:16,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:13:16,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23412046] [2021-11-14 09:13:16,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:13:16,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:13:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:13:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:13:16,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:13:16,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23412046] [2021-11-14 09:13:16,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23412046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:13:16,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:13:16,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 09:13:16,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429893490] [2021-11-14 09:13:16,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:13:16,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 09:13:16,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:13:16,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 09:13:16,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-14 09:13:16,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:13:16,955 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:13:16,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:13:16,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:13:17,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:13:17,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-14 09:13:17,021 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:13:17,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:13:17,021 INFO L85 PathProgramCache]: Analyzing trace with hash 876218908, now seen corresponding path program 1 times [2021-11-14 09:13:17,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:13:17,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180055444] [2021-11-14 09:13:17,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:13:17,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:13:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:13:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:13:17,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:13:17,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180055444] [2021-11-14 09:13:17,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180055444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 09:13:17,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 09:13:17,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-14 09:13:17,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141873877] [2021-11-14 09:13:17,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 09:13:17,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 09:13:17,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:13:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 09:13:17,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-14 09:13:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:13:17,114 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:13:17,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:13:17,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:13:17,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:13:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:13:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 09:13:30,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-14 09:13:30,335 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 09:13:30,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 09:13:30,335 INFO L85 PathProgramCache]: Analyzing trace with hash 226855132, now seen corresponding path program 1 times [2021-11-14 09:13:30,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 09:13:30,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186269165] [2021-11-14 09:13:30,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:13:30,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 09:13:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:13:30,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:13:30,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 09:13:30,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186269165] [2021-11-14 09:13:30,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186269165] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 09:13:30,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037095638] [2021-11-14 09:13:30,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 09:13:30,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 09:13:30,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 09:13:30,459 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 09:13:30,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-14 09:13:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 09:13:30,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-14 09:13:30,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 09:13:30,778 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:13:30,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 09:13:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 09:13:31,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037095638] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 09:13:31,014 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 09:13:31,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2021-11-14 09:13:31,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040640820] [2021-11-14 09:13:31,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 09:13:31,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-14 09:13:31,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 09:13:31,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-14 09:13:31,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-11-14 09:13:31,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 09:13:31,016 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 09:13:31,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 09:13:31,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 09:13:31,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 09:13:31,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.