/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:03:33,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:03:33,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:03:33,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 22:03:33,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:03:33,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:03:33,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:03:33,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:03:33,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:03:33,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:03:33,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:03:33,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:03:33,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:03:33,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:03:33,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:03:33,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:03:33,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 22:03:33,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:03:33,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:03:33,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:03:33,578 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 22:03:33,616 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:03:33,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:03:33,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:03:33,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:03:33,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:03:33,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:03:33,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:03:33,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:03:33,618 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:03:33,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:03:33,618 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:03:33,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:03:33,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:03:33,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:03:33,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:03:33,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:03:33,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:03:33,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:03:33,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:03:33,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:03:33,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:03:33,620 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:03:33,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:03:33,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:03:33,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:03:33,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:03:33,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:03:33,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:03:33,967 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:03:33,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i [2022-02-10 22:03:34,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d774aa175/4985b3493f8e479e9a685d25fd5a6496/FLAGda4cc01b8 [2022-02-10 22:03:34,383 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:03:34,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i [2022-02-10 22:03:34,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d774aa175/4985b3493f8e479e9a685d25fd5a6496/FLAGda4cc01b8 [2022-02-10 22:03:34,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d774aa175/4985b3493f8e479e9a685d25fd5a6496 [2022-02-10 22:03:34,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:03:34,778 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:03:34,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:03:34,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:03:34,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:03:34,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:03:34" (1/1) ... [2022-02-10 22:03:34,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b96d418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:34, skipping insertion in model container [2022-02-10 22:03:34,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:03:34" (1/1) ... [2022-02-10 22:03:34,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:03:34,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:03:35,071 WARN L230 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_24-sound_lock_racing.i[30176,30189] [2022-02-10 22:03:35,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:03:35,096 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:03:35,125 WARN L230 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_24-sound_lock_racing.i[30176,30189] [2022-02-10 22:03:35,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:03:35,170 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:03:35,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35 WrapperNode [2022-02-10 22:03:35,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:03:35,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:03:35,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:03:35,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:03:35,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,219 INFO L137 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2022-02-10 22:03:35,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:03:35,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:03:35,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:03:35,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:03:35,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:03:35,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:03:35,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:03:35,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:03:35,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (1/1) ... [2022-02-10 22:03:35,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:03:35,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:03:35,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 22:03:35,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 22:03:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:03:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:03:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 22:03:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:03:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:03:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-10 22:03:35,363 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-10 22:03:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:03:35,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:03:35,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:03:35,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:03:35,367 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:03:35,494 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:03:35,496 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:03:35,675 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:03:35,681 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:03:35,681 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-02-10 22:03:35,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:03:35 BoogieIcfgContainer [2022-02-10 22:03:35,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:03:35,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:03:35,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:03:35,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:03:35,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:03:34" (1/3) ... [2022-02-10 22:03:35,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ff3c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:03:35, skipping insertion in model container [2022-02-10 22:03:35,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:03:35" (2/3) ... [2022-02-10 22:03:35,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ff3c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:03:35, skipping insertion in model container [2022-02-10 22:03:35,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:03:35" (3/3) ... [2022-02-10 22:03:35,696 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_24-sound_lock_racing.i [2022-02-10 22:03:35,700 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:03:35,700 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:03:35,700 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:03:35,700 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:03:35,731 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,731 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,732 WARN L322 ript$VariableManager]: TermVariable t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,732 WARN L322 ript$VariableManager]: TermVariable t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,732 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,732 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,732 WARN L322 ript$VariableManager]: TermVariable t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,732 WARN L322 ript$VariableManager]: TermVariable t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,732 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,733 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,733 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,733 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,733 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,733 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,733 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,734 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,734 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,739 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,740 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,740 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,740 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,740 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,740 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,740 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,741 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,741 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,741 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,741 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,742 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,742 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,742 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,742 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,742 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,742 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,743 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,743 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,754 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,754 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,754 WARN L322 ript$VariableManager]: TermVariable t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,754 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,754 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,754 WARN L322 ript$VariableManager]: TermVariable t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,755 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,755 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,755 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:35,759 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 22:03:35,793 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:03:35,798 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:03:35,798 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 22:03:35,806 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 119 transitions, 246 flow [2022-02-10 22:03:35,868 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 660 states, 657 states have (on average 2.188736681887367) internal successors, (1438), 659 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 660 states, 657 states have (on average 2.188736681887367) internal successors, (1438), 659 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:35,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-10 22:03:35,877 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:03:35,877 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:03:35,877 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:03:35,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:03:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash 893611393, now seen corresponding path program 1 times [2022-02-10 22:03:35,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:03:35,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208604369] [2022-02-10 22:03:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:03:35,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:03:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:03:36,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:03:36,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:03:36,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208604369] [2022-02-10 22:03:36,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208604369] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:03:36,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:03:36,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:03:36,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121742009] [2022-02-10 22:03:36,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:03:36,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:03:36,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:03:36,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:03:36,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:03:36,093 INFO L87 Difference]: Start difference. First operand has 660 states, 657 states have (on average 2.188736681887367) internal successors, (1438), 659 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:36,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:03:36,134 INFO L93 Difference]: Finished difference Result 636 states and 1164 transitions. [2022-02-10 22:03:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:03:36,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-02-10 22:03:36,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:03:36,146 INFO L225 Difference]: With dead ends: 636 [2022-02-10 22:03:36,146 INFO L226 Difference]: Without dead ends: 564 [2022-02-10 22:03:36,147 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:03:36,149 INFO L934 BasicCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:03:36,150 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:03:36,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-02-10 22:03:36,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2022-02-10 22:03:36,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 561 states have (on average 1.8288770053475936) internal successors, (1026), 563 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 1026 transitions. [2022-02-10 22:03:36,215 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 1026 transitions. Word has length 52 [2022-02-10 22:03:36,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:03:36,215 INFO L470 AbstractCegarLoop]: Abstraction has 564 states and 1026 transitions. [2022-02-10 22:03:36,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:36,216 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 1026 transitions. [2022-02-10 22:03:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-10 22:03:36,216 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:03:36,217 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:03:36,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:03:36,217 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:03:36,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:03:36,218 INFO L85 PathProgramCache]: Analyzing trace with hash -903339966, now seen corresponding path program 1 times [2022-02-10 22:03:36,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:03:36,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353629861] [2022-02-10 22:03:36,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:03:36,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:03:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:03:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:03:36,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:03:36,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353629861] [2022-02-10 22:03:36,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353629861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:03:36,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:03:36,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:03:36,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114451080] [2022-02-10 22:03:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:03:36,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:03:36,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:03:36,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:03:36,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:03:36,312 INFO L87 Difference]: Start difference. First operand 564 states and 1026 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:36,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:03:36,337 INFO L93 Difference]: Finished difference Result 553 states and 1015 transitions. [2022-02-10 22:03:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:03:36,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-02-10 22:03:36,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:03:36,340 INFO L225 Difference]: With dead ends: 553 [2022-02-10 22:03:36,340 INFO L226 Difference]: Without dead ends: 553 [2022-02-10 22:03:36,340 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:03:36,342 INFO L934 BasicCegarLoop]: 83 mSDtfsCounter, 30 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:03:36,342 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 160 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:03:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-10 22:03:36,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2022-02-10 22:03:36,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 551 states have (on average 1.8421052631578947) internal successors, (1015), 552 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 1015 transitions. [2022-02-10 22:03:36,363 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 1015 transitions. Word has length 52 [2022-02-10 22:03:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:03:36,363 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 1015 transitions. [2022-02-10 22:03:36,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:36,364 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 1015 transitions. [2022-02-10 22:03:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-10 22:03:36,370 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:03:36,371 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:03:36,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:03:36,372 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:03:36,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:03:36,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2133244280, now seen corresponding path program 1 times [2022-02-10 22:03:36,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:03:36,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52065713] [2022-02-10 22:03:36,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:03:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:03:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 22:03:36,399 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 22:03:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 22:03:36,435 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 22:03:36,435 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 22:03:36,436 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 22:03:36,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 22:03:36,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:03:36,439 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-10 22:03:36,440 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 22:03:36,440 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-10 22:03:36,449 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,450 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,450 WARN L322 ript$VariableManager]: TermVariable t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,450 WARN L322 ript$VariableManager]: TermVariable t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,450 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,450 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,450 WARN L322 ript$VariableManager]: TermVariable t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,450 WARN L322 ript$VariableManager]: TermVariable t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,450 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,450 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,451 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,451 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,451 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,451 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,451 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,451 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,451 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,451 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,451 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,452 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,453 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,453 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,453 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,453 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,453 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,453 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,453 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,453 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,454 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,455 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,455 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,455 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,455 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,455 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,455 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,455 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,455 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,456 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,456 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,456 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,456 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,456 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,456 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,456 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,456 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,456 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,457 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,457 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,457 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,457 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,457 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,457 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,457 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,458 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,458 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,458 WARN L322 ript$VariableManager]: TermVariable t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,458 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,458 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,459 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,460 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,460 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,460 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:36,461 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 22:03:36,463 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:03:36,463 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:03:36,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 22:03:36,465 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 134 places, 149 transitions, 316 flow [2022-02-10 22:03:36,812 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14391 states, 14387 states have (on average 3.4552026134704943) internal successors, (49710), 14390 states have internal predecessors, (49710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 14391 states, 14387 states have (on average 3.4552026134704943) internal successors, (49710), 14390 states have internal predecessors, (49710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-10 22:03:36,853 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:03:36,853 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:03:36,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:03:36,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:03:36,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1065388481, now seen corresponding path program 1 times [2022-02-10 22:03:36,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:03:36,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970323947] [2022-02-10 22:03:36,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:03:36,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:03:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:03:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:03:36,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:03:36,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970323947] [2022-02-10 22:03:36,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970323947] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:03:36,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:03:36,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:03:36,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104209400] [2022-02-10 22:03:36,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:03:36,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:03:36,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:03:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:03:36,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:03:36,996 INFO L87 Difference]: Start difference. First operand has 14391 states, 14387 states have (on average 3.4552026134704943) internal successors, (49710), 14390 states have internal predecessors, (49710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:37,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:03:37,116 INFO L93 Difference]: Finished difference Result 13838 states and 39138 transitions. [2022-02-10 22:03:37,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:03:37,117 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-02-10 22:03:37,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:03:37,173 INFO L225 Difference]: With dead ends: 13838 [2022-02-10 22:03:37,173 INFO L226 Difference]: Without dead ends: 12179 [2022-02-10 22:03:37,173 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:03:37,181 INFO L934 BasicCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:03:37,183 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:03:37,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12179 states. [2022-02-10 22:03:37,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12179 to 12179. [2022-02-10 22:03:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12179 states, 12175 states have (on average 2.8235728952772075) internal successors, (34377), 12178 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:37,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12179 states to 12179 states and 34377 transitions. [2022-02-10 22:03:37,668 INFO L78 Accepts]: Start accepts. Automaton has 12179 states and 34377 transitions. Word has length 52 [2022-02-10 22:03:37,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:03:37,670 INFO L470 AbstractCegarLoop]: Abstraction has 12179 states and 34377 transitions. [2022-02-10 22:03:37,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:37,670 INFO L276 IsEmpty]: Start isEmpty. Operand 12179 states and 34377 transitions. [2022-02-10 22:03:37,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-10 22:03:37,672 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:03:37,672 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:03:37,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:03:37,672 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:03:37,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:03:37,673 INFO L85 PathProgramCache]: Analyzing trace with hash -731562878, now seen corresponding path program 1 times [2022-02-10 22:03:37,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:03:37,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686954696] [2022-02-10 22:03:37,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:03:37,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:03:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:03:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:03:37,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:03:37,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686954696] [2022-02-10 22:03:37,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686954696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:03:37,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:03:37,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:03:37,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855625630] [2022-02-10 22:03:37,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:03:37,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:03:37,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:03:37,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:03:37,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:03:37,703 INFO L87 Difference]: Start difference. First operand 12179 states and 34377 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:37,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:03:37,763 INFO L93 Difference]: Finished difference Result 12168 states and 34366 transitions. [2022-02-10 22:03:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:03:37,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-02-10 22:03:37,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:03:37,798 INFO L225 Difference]: With dead ends: 12168 [2022-02-10 22:03:37,798 INFO L226 Difference]: Without dead ends: 12168 [2022-02-10 22:03:37,798 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:03:37,799 INFO L934 BasicCegarLoop]: 105 mSDtfsCounter, 30 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:03:37,799 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 206 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:03:37,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12168 states. [2022-02-10 22:03:38,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12168 to 12168. [2022-02-10 22:03:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12168 states, 12165 states have (on average 2.824989724619811) internal successors, (34366), 12167 states have internal predecessors, (34366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:38,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12168 states to 12168 states and 34366 transitions. [2022-02-10 22:03:38,207 INFO L78 Accepts]: Start accepts. Automaton has 12168 states and 34366 transitions. Word has length 52 [2022-02-10 22:03:38,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:03:38,207 INFO L470 AbstractCegarLoop]: Abstraction has 12168 states and 34366 transitions. [2022-02-10 22:03:38,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:38,207 INFO L276 IsEmpty]: Start isEmpty. Operand 12168 states and 34366 transitions. [2022-02-10 22:03:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-10 22:03:38,208 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:03:38,208 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:03:38,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:03:38,208 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:03:38,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:03:38,209 INFO L85 PathProgramCache]: Analyzing trace with hash -504268380, now seen corresponding path program 1 times [2022-02-10 22:03:38,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:03:38,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118548092] [2022-02-10 22:03:38,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:03:38,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:03:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:03:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:03:38,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:03:38,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118548092] [2022-02-10 22:03:38,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118548092] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:03:38,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983812699] [2022-02-10 22:03:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:03:38,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:03:38,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:03:38,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:03:38,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:03:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:03:38,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 22:03:38,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:03:38,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:03:38,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:03:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:03:38,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983812699] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:03:38,547 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:03:38,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 22:03:38,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048785754] [2022-02-10 22:03:38,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:03:38,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:03:38,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:03:38,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:03:38,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:03:38,548 INFO L87 Difference]: Start difference. First operand 12168 states and 34366 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:03:38,612 INFO L93 Difference]: Finished difference Result 6096 states and 16920 transitions. [2022-02-10 22:03:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:03:38,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-02-10 22:03:38,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:03:38,694 INFO L225 Difference]: With dead ends: 6096 [2022-02-10 22:03:38,694 INFO L226 Difference]: Without dead ends: 6096 [2022-02-10 22:03:38,695 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:03:38,696 INFO L934 BasicCegarLoop]: 137 mSDtfsCounter, 488 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:03:38,696 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 635 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:03:38,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2022-02-10 22:03:38,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 6096. [2022-02-10 22:03:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6096 states, 6095 states have (on average 2.776045939294504) internal successors, (16920), 6095 states have internal predecessors, (16920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:38,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6096 states to 6096 states and 16920 transitions. [2022-02-10 22:03:38,815 INFO L78 Accepts]: Start accepts. Automaton has 6096 states and 16920 transitions. Word has length 62 [2022-02-10 22:03:38,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:03:38,815 INFO L470 AbstractCegarLoop]: Abstraction has 6096 states and 16920 transitions. [2022-02-10 22:03:38,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 6096 states and 16920 transitions. [2022-02-10 22:03:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-10 22:03:38,817 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:03:38,817 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:03:38,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 22:03:39,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-02-10 22:03:39,035 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:03:39,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:03:39,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1440832547, now seen corresponding path program 1 times [2022-02-10 22:03:39,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:03:39,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239338778] [2022-02-10 22:03:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:03:39,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:03:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 22:03:39,066 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 22:03:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 22:03:39,099 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 22:03:39,099 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 22:03:39,099 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 22:03:39,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 22:03:39,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:03:39,100 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-10 22:03:39,100 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 22:03:39,100 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-10 22:03:39,113 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,113 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,114 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,115 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,115 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,115 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,115 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,115 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,115 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,115 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,115 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,115 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,116 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,116 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,116 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,116 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,116 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,117 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,117 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,117 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,117 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,117 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,118 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,118 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,118 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,118 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,118 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,119 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,119 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,119 WARN L322 ript$VariableManager]: TermVariable t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,119 WARN L322 ript$VariableManager]: TermVariable t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,119 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,119 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,119 WARN L322 ript$VariableManager]: TermVariable t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,119 WARN L322 ript$VariableManager]: TermVariable t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,119 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,121 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,121 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,122 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,122 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,122 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,122 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,130 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,130 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,131 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,131 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,131 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,131 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,131 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,132 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,132 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,132 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,132 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,132 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,132 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,132 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,132 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,132 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,133 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,133 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,133 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,133 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,133 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,133 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,133 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,133 WARN L322 ript$VariableManager]: TermVariable t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,133 WARN L322 ript$VariableManager]: TermVariable t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,134 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,135 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,136 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,137 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,137 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,137 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,137 WARN L322 ript$VariableManager]: TermVariable t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,137 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,137 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,137 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,138 WARN L322 ript$VariableManager]: TermVariable t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,138 WARN L322 ript$VariableManager]: TermVariable t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,138 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,139 WARN L322 ript$VariableManager]: TermVariable t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,139 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,140 WARN L322 ript$VariableManager]: TermVariable t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,140 WARN L322 ript$VariableManager]: TermVariable t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,140 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,140 WARN L322 ript$VariableManager]: TermVariable |t_funThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:03:39,141 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 22:03:39,151 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:03:39,151 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:03:39,151 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 22:03:39,153 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 179 transitions, 388 flow [2022-02-10 22:03:48,984 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 330204 states, 330199 states have (on average 4.677282487227399) internal successors, (1544434), 330203 states have internal predecessors, (1544434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:49,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 330204 states, 330199 states have (on average 4.677282487227399) internal successors, (1544434), 330203 states have internal predecessors, (1544434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:49,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-10 22:03:49,564 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:03:49,564 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:03:49,565 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:03:49,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:03:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash -688367743, now seen corresponding path program 1 times [2022-02-10 22:03:49,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:03:49,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597297290] [2022-02-10 22:03:49,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:03:49,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:03:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:03:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:03:49,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:03:49,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597297290] [2022-02-10 22:03:49,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597297290] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:03:49,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:03:49,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:03:49,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037278869] [2022-02-10 22:03:49,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:03:49,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:03:49,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:03:49,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:03:49,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:03:50,412 INFO L87 Difference]: Start difference. First operand has 330204 states, 330199 states have (on average 4.677282487227399) internal successors, (1544434), 330203 states have internal predecessors, (1544434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:03:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:03:56,296 INFO L93 Difference]: Finished difference Result 317484 states and 1202984 transitions. [2022-02-10 22:03:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:03:56,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-02-10 22:03:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:03:59,656 INFO L225 Difference]: With dead ends: 317484 [2022-02-10 22:03:59,656 INFO L226 Difference]: Without dead ends: 279324 [2022-02-10 22:03:59,656 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:03:59,657 INFO L934 BasicCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:03:59,657 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:04:00,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279324 states. [2022-02-10 22:04:11,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279324 to 279324. [2022-02-10 22:04:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279324 states, 279319 states have (on average 3.7841321213379686) internal successors, (1056980), 279323 states have internal predecessors, (1056980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:04:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279324 states to 279324 states and 1056980 transitions. [2022-02-10 22:04:14,867 INFO L78 Accepts]: Start accepts. Automaton has 279324 states and 1056980 transitions. Word has length 52 [2022-02-10 22:04:14,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:04:14,870 INFO L470 AbstractCegarLoop]: Abstraction has 279324 states and 1056980 transitions. [2022-02-10 22:04:14,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:04:14,870 INFO L276 IsEmpty]: Start isEmpty. Operand 279324 states and 1056980 transitions. [2022-02-10 22:04:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-10 22:04:14,871 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:04:14,871 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:04:14,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 22:04:14,871 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:04:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:04:14,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1809648194, now seen corresponding path program 1 times [2022-02-10 22:04:14,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:04:14,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305124623] [2022-02-10 22:04:14,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:04:14,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:04:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:04:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:04:14,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:04:14,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305124623] [2022-02-10 22:04:14,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305124623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:04:14,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:04:14,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:04:14,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133087927] [2022-02-10 22:04:14,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:04:14,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:04:14,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:04:14,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:04:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:04:14,911 INFO L87 Difference]: Start difference. First operand 279324 states and 1056980 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:04:19,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:04:19,695 INFO L93 Difference]: Finished difference Result 279313 states and 1056969 transitions. [2022-02-10 22:04:19,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:04:19,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-02-10 22:04:19,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:04:24,674 INFO L225 Difference]: With dead ends: 279313 [2022-02-10 22:04:24,674 INFO L226 Difference]: Without dead ends: 279313 [2022-02-10 22:04:24,675 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:04:24,680 INFO L934 BasicCegarLoop]: 127 mSDtfsCounter, 30 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:04:24,681 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 250 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:04:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279313 states. [2022-02-10 22:04:38,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279313 to 279313. [2022-02-10 22:04:39,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279313 states, 279309 states have (on average 3.784228220358098) internal successors, (1056969), 279312 states have internal predecessors, (1056969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:04:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279313 states to 279313 states and 1056969 transitions. [2022-02-10 22:04:42,858 INFO L78 Accepts]: Start accepts. Automaton has 279313 states and 1056969 transitions. Word has length 52 [2022-02-10 22:04:42,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:04:42,858 INFO L470 AbstractCegarLoop]: Abstraction has 279313 states and 1056969 transitions. [2022-02-10 22:04:42,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:04:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 279313 states and 1056969 transitions. [2022-02-10 22:04:42,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-10 22:04:42,860 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:04:42,860 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:04:42,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 22:04:42,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 22:04:42,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:04:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash -936714400, now seen corresponding path program 1 times [2022-02-10 22:04:42,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:04:42,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718171049] [2022-02-10 22:04:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:04:42,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:04:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:04:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:04:42,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:04:42,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718171049] [2022-02-10 22:04:42,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718171049] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:04:42,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102576946] [2022-02-10 22:04:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:04:42,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:04:42,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:04:42,909 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:04:42,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:04:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:04:42,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 22:04:42,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:04:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:04:43,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:04:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:04:43,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102576946] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:04:43,161 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:04:43,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 22:04:43,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365234544] [2022-02-10 22:04:43,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:04:43,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:04:43,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:04:43,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:04:43,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:04:43,162 INFO L87 Difference]: Start difference. First operand 279313 states and 1056969 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:04:47,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:04:47,665 INFO L93 Difference]: Finished difference Result 273241 states and 1039523 transitions. [2022-02-10 22:04:47,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:04:47,665 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-02-10 22:04:47,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:04:51,946 INFO L225 Difference]: With dead ends: 273241 [2022-02-10 22:04:51,946 INFO L226 Difference]: Without dead ends: 273241 [2022-02-10 22:04:51,946 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:04:51,948 INFO L934 BasicCegarLoop]: 170 mSDtfsCounter, 470 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:04:51,948 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 818 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:04:53,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273241 states.