/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 08:49:00,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 08:49:00,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 08:49:00,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 08:49:00,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 08:49:00,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 08:49:00,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 08:49:00,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 08:49:00,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 08:49:00,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 08:49:00,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 08:49:00,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 08:49:00,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 08:49:00,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 08:49:00,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 08:49:00,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 08:49:00,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 08:49:00,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 08:49:00,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 08:49:00,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 08:49:00,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 08:49:00,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 08:49:00,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 08:49:00,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 08:49:00,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 08:49:00,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 08:49:00,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 08:49:00,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 08:49:00,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 08:49:00,333 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 08:49:00,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 08:49:00,333 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 08:49:00,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 08:49:00,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 08:49:00,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:49:00,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 08:49:00,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 08:49:00,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 08:49:00,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 08:49:00,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 08:49:00,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 08:49:00,500 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 08:49:00,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2022-01-18 08:49:00,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/323f96a85/628343f2b89746b685ee129bb7aabdaf/FLAG416b39d7c [2022-01-18 08:49:00,925 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 08:49:00,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2022-01-18 08:49:00,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/323f96a85/628343f2b89746b685ee129bb7aabdaf/FLAG416b39d7c [2022-01-18 08:49:00,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/323f96a85/628343f2b89746b685ee129bb7aabdaf [2022-01-18 08:49:00,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 08:49:00,949 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 08:49:00,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 08:49:00,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 08:49:00,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 08:49:00,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:49:00" (1/1) ... [2022-01-18 08:49:00,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6670da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:00, skipping insertion in model container [2022-01-18 08:49:00,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:49:00" (1/1) ... [2022-01-18 08:49:00,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 08:49:00,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 08:49:01,267 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30454,30467] [2022-01-18 08:49:01,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30634,30647] [2022-01-18 08:49:01,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:49:01,285 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 08:49:01,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30454,30467] [2022-01-18 08:49:01,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30634,30647] [2022-01-18 08:49:01,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:49:01,354 INFO L208 MainTranslator]: Completed translation [2022-01-18 08:49:01,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01 WrapperNode [2022-01-18 08:49:01,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 08:49:01,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 08:49:01,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 08:49:01,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 08:49:01,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,388 INFO L137 Inliner]: procedures = 172, calls = 24, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 128 [2022-01-18 08:49:01,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 08:49:01,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 08:49:01,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 08:49:01,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 08:49:01,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 08:49:01,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 08:49:01,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 08:49:01,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 08:49:01,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (1/1) ... [2022-01-18 08:49:01,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:49:01,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:49:01,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 08:49:01,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 08:49:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-01-18 08:49:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-01-18 08:49:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure thr3 [2022-01-18 08:49:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thr3 [2022-01-18 08:49:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-18 08:49:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-18 08:49:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 08:49:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 08:49:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 08:49:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 08:49:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 08:49:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 08:49:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 08:49:01,463 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 08:49:01,590 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 08:49:01,591 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 08:49:01,787 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 08:49:01,842 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 08:49:01,843 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-18 08:49:01,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:49:01 BoogieIcfgContainer [2022-01-18 08:49:01,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 08:49:01,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 08:49:01,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 08:49:01,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 08:49:01,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 08:49:00" (1/3) ... [2022-01-18 08:49:01,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b228a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:49:01, skipping insertion in model container [2022-01-18 08:49:01,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:49:01" (2/3) ... [2022-01-18 08:49:01,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b228a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:49:01, skipping insertion in model container [2022-01-18 08:49:01,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:49:01" (3/3) ... [2022-01-18 08:49:01,858 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_pthread5_vs.i [2022-01-18 08:49:01,861 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 08:49:01,861 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 08:49:01,861 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-18 08:49:01,861 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 08:49:01,891 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,891 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,891 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,891 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,892 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,892 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,892 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,892 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,894 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,894 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,894 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,894 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,894 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,895 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,895 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,895 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,897 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,897 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,897 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,898 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,898 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,899 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,899 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,899 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,899 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,900 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,900 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,900 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,900 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,901 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,901 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,901 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,901 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,902 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,902 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,903 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,903 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,903 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,903 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,903 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,903 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,904 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,904 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,904 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,904 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,904 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,904 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,905 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,905 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,905 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,906 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,906 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,906 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,906 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,907 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,907 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,907 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,907 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,908 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,908 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,908 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,908 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,909 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,909 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,909 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,909 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,909 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,909 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,910 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,910 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,910 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,910 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,911 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,916 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,917 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,918 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,918 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,919 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,919 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,919 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,919 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,919 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,919 WARN L322 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,920 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,920 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,920 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,920 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,921 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,921 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:49:01,921 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:49:01,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:49:01,967 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:49:01,967 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 08:49:01,978 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 91 transitions, 197 flow [2022-01-18 08:49:02,942 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 29362 states, 29354 states have (on average 4.100872112829597) internal successors, (120377), 29361 states have internal predecessors, (120377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:02,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 29362 states, 29354 states have (on average 4.100872112829597) internal successors, (120377), 29361 states have internal predecessors, (120377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:03,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-18 08:49:03,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:49:03,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:49:03,007 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:49:03,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:49:03,011 INFO L85 PathProgramCache]: Analyzing trace with hash 542323430, now seen corresponding path program 1 times [2022-01-18 08:49:03,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:49:03,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627494920] [2022-01-18 08:49:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:49:03,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:49:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:49:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:49:03,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:49:03,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627494920] [2022-01-18 08:49:03,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627494920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:49:03,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:49:03,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:49:03,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945280277] [2022-01-18 08:49:03,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:49:03,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 08:49:03,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:49:03,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 08:49:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 08:49:03,337 INFO L87 Difference]: Start difference. First operand has 29362 states, 29354 states have (on average 4.100872112829597) internal successors, (120377), 29361 states have internal predecessors, (120377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:03,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:49:03,751 INFO L93 Difference]: Finished difference Result 22099 states and 80602 transitions. [2022-01-18 08:49:03,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 08:49:03,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-18 08:49:03,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:49:03,951 INFO L225 Difference]: With dead ends: 22099 [2022-01-18 08:49:03,951 INFO L226 Difference]: Without dead ends: 20499 [2022-01-18 08:49:03,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 08:49:03,955 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 153 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:49:03,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 209 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:49:04,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20499 states. [2022-01-18 08:49:04,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20499 to 15875. [2022-01-18 08:49:04,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15875 states, 15873 states have (on average 3.7101997101997104) internal successors, (58892), 15874 states have internal predecessors, (58892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:04,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15875 states to 15875 states and 58892 transitions. [2022-01-18 08:49:04,659 INFO L78 Accepts]: Start accepts. Automaton has 15875 states and 58892 transitions. Word has length 33 [2022-01-18 08:49:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:49:04,660 INFO L470 AbstractCegarLoop]: Abstraction has 15875 states and 58892 transitions. [2022-01-18 08:49:04,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 15875 states and 58892 transitions. [2022-01-18 08:49:04,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-18 08:49:04,663 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:49:04,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:49:04,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 08:49:04,664 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:49:04,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:49:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1009925327, now seen corresponding path program 1 times [2022-01-18 08:49:04,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:49:04,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357933738] [2022-01-18 08:49:04,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:49:04,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:49:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:49:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:49:04,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:49:04,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357933738] [2022-01-18 08:49:04,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357933738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:49:04,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:49:04,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:49:04,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646763975] [2022-01-18 08:49:04,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:49:04,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:49:04,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:49:04,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:49:04,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:49:04,747 INFO L87 Difference]: Start difference. First operand 15875 states and 58892 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:05,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:49:05,039 INFO L93 Difference]: Finished difference Result 14932 states and 50377 transitions. [2022-01-18 08:49:05,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 08:49:05,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-01-18 08:49:05,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:49:05,097 INFO L225 Difference]: With dead ends: 14932 [2022-01-18 08:49:05,097 INFO L226 Difference]: Without dead ends: 13420 [2022-01-18 08:49:05,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-18 08:49:05,101 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 167 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:49:05,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 569 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:49:05,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13420 states. [2022-01-18 08:49:05,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13420 to 7923. [2022-01-18 08:49:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7923 states, 7918 states have (on average 3.363601919676686) internal successors, (26633), 7922 states have internal predecessors, (26633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7923 states to 7923 states and 26633 transitions. [2022-01-18 08:49:05,464 INFO L78 Accepts]: Start accepts. Automaton has 7923 states and 26633 transitions. Word has length 36 [2022-01-18 08:49:05,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:49:05,464 INFO L470 AbstractCegarLoop]: Abstraction has 7923 states and 26633 transitions. [2022-01-18 08:49:05,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand 7923 states and 26633 transitions. [2022-01-18 08:49:05,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 08:49:05,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:49:05,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:49:05,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 08:49:05,473 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:49:05,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:49:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash 711620566, now seen corresponding path program 1 times [2022-01-18 08:49:05,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:49:05,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042625612] [2022-01-18 08:49:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:49:05,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:49:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:49:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:49:05,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:49:05,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042625612] [2022-01-18 08:49:05,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042625612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:49:05,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:49:05,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 08:49:05,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407586089] [2022-01-18 08:49:05,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:49:05,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:49:05,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:49:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:49:05,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:49:05,560 INFO L87 Difference]: Start difference. First operand 7923 states and 26633 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:05,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:49:05,630 INFO L93 Difference]: Finished difference Result 7707 states and 25340 transitions. [2022-01-18 08:49:05,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:49:05,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-01-18 08:49:05,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:49:05,649 INFO L225 Difference]: With dead ends: 7707 [2022-01-18 08:49:05,649 INFO L226 Difference]: Without dead ends: 6747 [2022-01-18 08:49:05,651 INFO L932 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 [2022-01-18 08:49:05,654 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 25 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:49:05,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 108 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:49:05,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6747 states. [2022-01-18 08:49:05,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6747 to 6555. [2022-01-18 08:49:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6555 states, 6551 states have (on average 3.2807205006869182) internal successors, (21492), 6554 states have internal predecessors, (21492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:05,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6555 states to 6555 states and 21492 transitions. [2022-01-18 08:49:05,781 INFO L78 Accepts]: Start accepts. Automaton has 6555 states and 21492 transitions. Word has length 46 [2022-01-18 08:49:05,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:49:05,781 INFO L470 AbstractCegarLoop]: Abstraction has 6555 states and 21492 transitions. [2022-01-18 08:49:05,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:05,782 INFO L276 IsEmpty]: Start isEmpty. Operand 6555 states and 21492 transitions. [2022-01-18 08:49:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-18 08:49:05,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:49:05,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:49:05,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 08:49:05,788 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:49:05,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:49:05,789 INFO L85 PathProgramCache]: Analyzing trace with hash 241109473, now seen corresponding path program 1 times [2022-01-18 08:49:05,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:49:05,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432775240] [2022-01-18 08:49:05,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:49:05,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:49:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:49:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:49:05,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:49:05,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432775240] [2022-01-18 08:49:05,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432775240] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:49:05,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:49:05,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:49:05,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583594247] [2022-01-18 08:49:05,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:49:05,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:49:05,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:49:05,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:49:05,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:49:05,876 INFO L87 Difference]: Start difference. First operand 6555 states and 21492 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:06,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:49:06,025 INFO L93 Difference]: Finished difference Result 5233 states and 16201 transitions. [2022-01-18 08:49:06,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 08:49:06,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-01-18 08:49:06,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:49:06,036 INFO L225 Difference]: With dead ends: 5233 [2022-01-18 08:49:06,036 INFO L226 Difference]: Without dead ends: 4921 [2022-01-18 08:49:06,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-01-18 08:49:06,037 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 241 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:49:06,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 459 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:49:06,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4921 states. [2022-01-18 08:49:06,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4921 to 2533. [2022-01-18 08:49:06,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2533 states, 2532 states have (on average 3.0679304897314377) internal successors, (7768), 2532 states have internal predecessors, (7768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2533 states to 2533 states and 7768 transitions. [2022-01-18 08:49:06,094 INFO L78 Accepts]: Start accepts. Automaton has 2533 states and 7768 transitions. Word has length 50 [2022-01-18 08:49:06,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:49:06,094 INFO L470 AbstractCegarLoop]: Abstraction has 2533 states and 7768 transitions. [2022-01-18 08:49:06,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2533 states and 7768 transitions. [2022-01-18 08:49:06,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-18 08:49:06,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:49:06,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:49:06,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 08:49:06,099 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:49:06,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:49:06,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1187161689, now seen corresponding path program 1 times [2022-01-18 08:49:06,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:49:06,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136291858] [2022-01-18 08:49:06,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:49:06,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:49:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:49:06,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:49:06,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:49:06,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136291858] [2022-01-18 08:49:06,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136291858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:49:06,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:49:06,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:49:06,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424954840] [2022-01-18 08:49:06,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:49:06,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 08:49:06,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:49:06,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 08:49:06,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 08:49:06,136 INFO L87 Difference]: Start difference. First operand 2533 states and 7768 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2022-01-18 08:49:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:49:06,165 INFO L93 Difference]: Finished difference Result 3029 states and 9282 transitions. [2022-01-18 08:49:06,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 08:49:06,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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 [2022-01-18 08:49:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:49:06,168 INFO L225 Difference]: With dead ends: 3029 [2022-01-18 08:49:06,168 INFO L226 Difference]: Without dead ends: 1394 [2022-01-18 08:49:06,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 08:49:06,169 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 49 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:49:06,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 165 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:49:06,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2022-01-18 08:49:06,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2022-01-18 08:49:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 2.88872936109117) internal successors, (4024), 1393 states have internal predecessors, (4024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:49:06,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 4024 transitions. [2022-01-18 08:49:06,188 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 4024 transitions. Word has length 52 [2022-01-18 08:49:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:49:06,188 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 4024 transitions. [2022-01-18 08:49:06,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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) [2022-01-18 08:49:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 4024 transitions. [2022-01-18 08:49:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:49:06,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:49:06,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:49:06,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 08:49:06,191 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:49:06,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:49:06,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1006617339, now seen corresponding path program 1 times [2022-01-18 08:49:06,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:49:06,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297202773] [2022-01-18 08:49:06,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:49:06,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:49:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:49:06,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:49:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:49:06,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:49:06,242 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:49:06,242 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thr3Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 08:49:06,244 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-18 08:49:06,244 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr3Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-18 08:49:06,244 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-18 08:49:06,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 08:49:06,246 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-18 08:49:06,246 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2022-01-18 08:49:06,249 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 08:49:06,249 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 08:49:06,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 08:49:06 BasicIcfg [2022-01-18 08:49:06,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 08:49:06,281 INFO L158 Benchmark]: Toolchain (without parser) took 5332.78ms. Allocated memory was 436.2MB in the beginning and 2.1GB in the end (delta: 1.6GB). Free memory was 382.4MB in the beginning and 1.7GB in the end (delta: -1.3GB). Peak memory consumption was 328.4MB. Max. memory is 16.0GB. [2022-01-18 08:49:06,281 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 436.2MB. Free memory is still 400.0MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 08:49:06,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.93ms. Allocated memory is still 436.2MB. Free memory was 382.3MB in the beginning and 394.4MB in the end (delta: -12.1MB). Peak memory consumption was 10.8MB. Max. memory is 16.0GB. [2022-01-18 08:49:06,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.42ms. Allocated memory is still 436.2MB. Free memory was 394.4MB in the beginning and 391.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 08:49:06,282 INFO L158 Benchmark]: Boogie Preprocessor took 15.72ms. Allocated memory is still 436.2MB. Free memory was 391.3MB in the beginning and 390.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 08:49:06,282 INFO L158 Benchmark]: RCFGBuilder took 439.69ms. Allocated memory is still 436.2MB. Free memory was 390.2MB in the beginning and 369.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-18 08:49:06,283 INFO L158 Benchmark]: TraceAbstraction took 4435.25ms. Allocated memory was 436.2MB in the beginning and 2.1GB in the end (delta: 1.6GB). Free memory was 369.2MB in the beginning and 1.7GB in the end (delta: -1.3GB). Peak memory consumption was 315.5MB. Max. memory is 16.0GB. [2022-01-18 08:49:06,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 436.2MB. Free memory is still 400.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 402.93ms. Allocated memory is still 436.2MB. Free memory was 382.3MB in the beginning and 394.4MB in the end (delta: -12.1MB). Peak memory consumption was 10.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 33.42ms. Allocated memory is still 436.2MB. Free memory was 394.4MB in the beginning and 391.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.72ms. Allocated memory is still 436.2MB. Free memory was 391.3MB in the beginning and 390.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 439.69ms. Allocated memory is still 436.2MB. Free memory was 390.2MB in the beginning and 369.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 4435.25ms. Allocated memory was 436.2MB in the beginning and 2.1GB in the end (delta: 1.6GB). Free memory was 369.2MB in the beginning and 1.7GB in the end (delta: -1.3GB). Peak memory consumption was 315.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 716]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L689] 0 int g0 = 0,g1 = 0,x = 0; VAL [g0=0, g1=0, x=0] [L690] 0 _Bool lock = 0; VAL [g0=0, g1=0, lock=0, x=0] [L691] 0 int mutex = 0; VAL [g0=0, g1=0, lock=0, mutex=0, x=0] [L735] 0 pthread_t t; VAL [g0=0, g1=0, lock=0, mutex=0, t={3:0}, x=0] [L736] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [g0=0, g1=0, lock=0, mutex=0, pthread_create(&t, 0, thr1, 0)=-2, t={3:0}, x=0] [L728] CALL 1 __VERIFIER_atomic_acquire() [L694] CALL 1 assume_abort_if_not(mutex==0) [L4] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mutex==0) [L695] 1 mutex = 1 [L728] RET 1 __VERIFIER_atomic_acquire() [L729] 1 g0=1 VAL [arg={0:0}, arg={0:0}, g0=1, g1=0, lock=0, mutex=1, x=0] [L729] 1 g1=1 VAL [arg={0:0}, arg={0:0}, g0=1, g1=1, lock=0, mutex=1, x=0] [L730] CALL 1 __VERIFIER_atomic_release() [L699] CALL 1 assume_abort_if_not(mutex==1) [L4] COND FALSE 1 !(!cond) [L699] RET 1 assume_abort_if_not(mutex==1) [L700] 1 mutex = 0 [L730] RET 1 __VERIFIER_atomic_release() [L737] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [g0=1, g1=1, lock=0, mutex=0, pthread_create(&t, 0, thr2, 0)=-1, t={3:0}, x=0] [L738] COND TRUE 0 1 VAL [g0=1, g1=1, lock=0, mutex=0, t={3:0}, x=0] [L740] FCALL, FORK 0 pthread_create(&t, 0, thr3, 0) VAL [g0=1, g1=1, lock=0, mutex=0, pthread_create(&t, 0, thr3, 0)=0, t={3:0}, x=0] [L704] CALL 3 __VERIFIER_atomic_acquire() [L694] CALL 3 assume_abort_if_not(mutex==0) [L4] COND FALSE 3 !(!cond) [L694] RET 3 assume_abort_if_not(mutex==0) [L695] 3 mutex = 1 [L704] RET 3 __VERIFIER_atomic_acquire() [L705] COND TRUE 3 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, arg={0:0}, arg={0:0}, g0=1, g1=1, lock=0, mutex=1, x=0] [L707] 3 g0=0 VAL [arg={0:0}, arg={0:0}, g0=0, g1=1, lock=0, mutex=1, x=0] [L708] 3 g1=0 VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=0, mutex=1, x=0] [L709] 3 lock=0 VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=0, mutex=1, x=0] [L711] CALL 3 __VERIFIER_atomic_release() [L699] CALL 3 assume_abort_if_not(mutex==1) [L4] COND FALSE 3 !(!cond) [L699] RET 3 assume_abort_if_not(mutex==1) [L700] 3 mutex = 0 [L711] RET 3 __VERIFIER_atomic_release() [L712] CALL 3 __VERIFIER_atomic_acquire() [L694] CALL 3 assume_abort_if_not(mutex==0) [L4] COND FALSE 3 !(!cond) [L694] RET 3 assume_abort_if_not(mutex==0) [L695] 3 mutex = 1 [L712] RET 3 __VERIFIER_atomic_acquire() [L731] 1 lock=1 VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=0] [L713] COND TRUE 3 \read(lock) VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=0] [L715] 3 x=1 VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=1] [L716] COND TRUE 3 !(g0==1 && g1==1) VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=1] [L716] 3 reach_error() VAL [arg={0:0}, arg={0:0}, g0=0, g1=0, lock=1, mutex=1, x=1] - UnprovableResult [Line: 723]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 128 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 635 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 635 mSDsluCounter, 1510 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1052 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 387 IncrementalHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 570 mSDtfsCounter, 387 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29362occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 12701 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-18 08:49:06,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...