/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 11:44:15,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 11:44:15,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 11:44:15,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 11:44:15,531 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 [2021-08-21 11:44:15,570 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 11:44:15,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 11:44:15,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 11:44:15,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 11:44:15,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 11:44:15,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 11:44:15,575 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 11:44:15,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 11:44:15,575 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 11:44:15,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 11:44:15,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 11:44:15,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 11:44:15,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 11:44:15,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 11:44:15,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 11:44:15,577 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 11:44:15,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 11:44:15,577 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 11:44:15,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 11:44:15,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 11:44:15,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 11:44:15,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 11:44:15,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 11:44:15,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:44:15,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 11:44:15,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 11:44:15,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 11:44:15,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 11:44:15,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 11:44:15,579 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 11:44:15,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 11:44:15,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 11:44:15,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 11:44:15,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 11:44:15,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 11:44:15,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 11:44:15,922 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 11:44:15,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2021-08-21 11:44:15,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb2913654/753c5a5b99034a90a59d947ade4f542a/FLAG746723c20 [2021-08-21 11:44:16,589 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 11:44:16,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2021-08-21 11:44:16,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb2913654/753c5a5b99034a90a59d947ade4f542a/FLAG746723c20 [2021-08-21 11:44:16,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb2913654/753c5a5b99034a90a59d947ade4f542a [2021-08-21 11:44:16,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 11:44:16,987 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 11:44:17,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 11:44:17,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 11:44:17,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 11:44:17,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:44:16" (1/1) ... [2021-08-21 11:44:17,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139a90ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17, skipping insertion in model container [2021-08-21 11:44:17,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:44:16" (1/1) ... [2021-08-21 11:44:17,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 11:44:17,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 11:44:17,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i[950,963] [2021-08-21 11:44:17,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:44:17,415 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 11:44:17,427 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i[950,963] [2021-08-21 11:44:17,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:44:17,524 INFO L208 MainTranslator]: Completed translation [2021-08-21 11:44:17,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17 WrapperNode [2021-08-21 11:44:17,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 11:44:17,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 11:44:17,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 11:44:17,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 11:44:17,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 11:44:17,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 11:44:17,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 11:44:17,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 11:44:17,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 11:44:17,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 11:44:17,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 11:44:17,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 11:44:17,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (1/1) ... [2021-08-21 11:44:17,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:44:17,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:44:17,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 11:44:17,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 11:44:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 11:44:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 11:44:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 11:44:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 11:44:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-21 11:44:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-21 11:44:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-21 11:44:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-21 11:44:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-21 11:44:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-21 11:44:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 11:44:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 11:44:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 11:44:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 11:44:17,725 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 11:44:18,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 11:44:18,087 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-21 11:44:18,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:44:18 BoogieIcfgContainer [2021-08-21 11:44:18,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 11:44:18,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 11:44:18,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 11:44:18,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 11:44:18,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:44:16" (1/3) ... [2021-08-21 11:44:18,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6c597a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:44:18, skipping insertion in model container [2021-08-21 11:44:18,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:17" (2/3) ... [2021-08-21 11:44:18,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6c597a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:44:18, skipping insertion in model container [2021-08-21 11:44:18,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:44:18" (3/3) ... [2021-08-21 11:44:18,097 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2021-08-21 11:44:18,101 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 11:44:18,102 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 11:44:18,102 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 11:44:18,102 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 11:44:18,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,132 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,132 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,134 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,134 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,135 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,136 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,136 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,136 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,140 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,140 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,140 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,141 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,145 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,145 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,148 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,149 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:18,151 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 11:44:18,189 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 11:44:18,195 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, mConcurrency=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 [2021-08-21 11:44:18,196 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-21 11:44:18,207 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-08-21 11:44:18,463 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:18,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-21 11:44:18,521 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:18,521 INFO L512 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] [2021-08-21 11:44:18,522 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:44:18,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:18,531 INFO L82 PathProgramCache]: Analyzing trace with hash -194702042, now seen corresponding path program 1 times [2021-08-21 11:44:18,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:18,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498390079] [2021-08-21 11:44:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:18,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:19,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:19,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498390079] [2021-08-21 11:44:19,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498390079] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:19,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:19,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:44:19,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722444086] [2021-08-21 11:44:19,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:44:19,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:19,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:44:19,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:44:19,119 INFO L87 Difference]: Start difference. First operand has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 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 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) [2021-08-21 11:44:19,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:19,531 INFO L93 Difference]: Finished difference Result 6884 states and 23450 transitions. [2021-08-21 11:44:19,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 11:44:19,533 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 [2021-08-21 11:44:19,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:19,594 INFO L225 Difference]: With dead ends: 6884 [2021-08-21 11:44:19,595 INFO L226 Difference]: Without dead ends: 5169 [2021-08-21 11:44:19,596 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 215.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:44:19,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5169 states. [2021-08-21 11:44:19,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5169 to 5169. [2021-08-21 11:44:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 3.4171826625387) internal successors, (17660), 5168 states have internal predecessors, (17660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 17660 transitions. [2021-08-21 11:44:19,982 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 17660 transitions. Word has length 50 [2021-08-21 11:44:19,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:19,984 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 17660 transitions. [2021-08-21 11:44:19,985 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) [2021-08-21 11:44:19,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 17660 transitions. [2021-08-21 11:44:20,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-21 11:44:20,005 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:20,010 INFO L512 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] [2021-08-21 11:44:20,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 11:44:20,011 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:44:20,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:20,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1835865733, now seen corresponding path program 1 times [2021-08-21 11:44:20,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:20,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098317602] [2021-08-21 11:44:20,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:20,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:20,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:20,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098317602] [2021-08-21 11:44:20,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098317602] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:20,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:20,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:44:20,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612293444] [2021-08-21 11:44:20,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:44:20,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:20,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:44:20,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:44:20,176 INFO L87 Difference]: Start difference. First operand 5169 states and 17660 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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) [2021-08-21 11:44:20,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:20,472 INFO L93 Difference]: Finished difference Result 7019 states and 23580 transitions. [2021-08-21 11:44:20,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-21 11:44:20,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 [2021-08-21 11:44:20,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:20,494 INFO L225 Difference]: With dead ends: 7019 [2021-08-21 11:44:20,494 INFO L226 Difference]: Without dead ends: 2879 [2021-08-21 11:44:20,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 202.4ms TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-08-21 11:44:20,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-08-21 11:44:20,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2879. [2021-08-21 11:44:20,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 2878 states have (on average 3.286657400972898) internal successors, (9459), 2878 states have internal predecessors, (9459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:20,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 9459 transitions. [2021-08-21 11:44:20,616 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 9459 transitions. Word has length 52 [2021-08-21 11:44:20,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:20,617 INFO L470 AbstractCegarLoop]: Abstraction has 2879 states and 9459 transitions. [2021-08-21 11:44:20,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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) [2021-08-21 11:44:20,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 9459 transitions. [2021-08-21 11:44:20,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-21 11:44:20,629 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:20,630 INFO L512 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] [2021-08-21 11:44:20,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 11:44:20,630 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:44:20,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:20,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1942657976, now seen corresponding path program 1 times [2021-08-21 11:44:20,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:20,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699185568] [2021-08-21 11:44:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:20,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:20,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:20,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699185568] [2021-08-21 11:44:20,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699185568] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:20,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:20,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:44:20,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973334580] [2021-08-21 11:44:20,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:44:20,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:20,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:44:20,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:44:20,838 INFO L87 Difference]: Start difference. First operand 2879 states and 9459 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:21,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:21,000 INFO L93 Difference]: Finished difference Result 4039 states and 13185 transitions. [2021-08-21 11:44:21,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:44:21,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2021-08-21 11:44:21,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:21,015 INFO L225 Difference]: With dead ends: 4039 [2021-08-21 11:44:21,015 INFO L226 Difference]: Without dead ends: 1799 [2021-08-21 11:44:21,015 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 167.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 11:44:21,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2021-08-21 11:44:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2021-08-21 11:44:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1798 states have (on average 3.131813125695217) internal successors, (5631), 1798 states have internal predecessors, (5631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 5631 transitions. [2021-08-21 11:44:21,073 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 5631 transitions. Word has length 55 [2021-08-21 11:44:21,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:21,074 INFO L470 AbstractCegarLoop]: Abstraction has 1799 states and 5631 transitions. [2021-08-21 11:44:21,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:21,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 5631 transitions. [2021-08-21 11:44:21,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-21 11:44:21,079 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:21,079 INFO L512 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] [2021-08-21 11:44:21,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 11:44:21,079 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:44:21,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:21,081 INFO L82 PathProgramCache]: Analyzing trace with hash -112755359, now seen corresponding path program 1 times [2021-08-21 11:44:21,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:21,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431746919] [2021-08-21 11:44:21,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:21,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:21,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:21,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:21,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431746919] [2021-08-21 11:44:21,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431746919] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:21,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:21,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:44:21,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778257604] [2021-08-21 11:44:21,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:44:21,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:21,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:44:21,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:44:21,202 INFO L87 Difference]: Start difference. First operand 1799 states and 5631 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:21,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:21,330 INFO L93 Difference]: Finished difference Result 1639 states and 5103 transitions. [2021-08-21 11:44:21,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:44:21,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2021-08-21 11:44:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:21,331 INFO L225 Difference]: With dead ends: 1639 [2021-08-21 11:44:21,331 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 11:44:21,332 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 120.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 11:44:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 11:44:21,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 11:44:21,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:21,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 11:44:21,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-08-21 11:44:21,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:21,333 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 11:44:21,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:21,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 11:44:21,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 11:44:21,335 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:44:21,336 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 11:44:21,336 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 11:44:21,336 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 11:44:21,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 11:44:21,341 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 11:44:21,341 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 11:44:21,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:44:21 BasicIcfg [2021-08-21 11:44:21,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 11:44:21,345 INFO L168 Benchmark]: Toolchain (without parser) took 4356.46 ms. Allocated memory was 198.2 MB in the beginning and 400.6 MB in the end (delta: 202.4 MB). Free memory was 161.0 MB in the beginning and 213.2 MB in the end (delta: -52.2 MB). Peak memory consumption was 151.6 MB. Max. memory is 8.0 GB. [2021-08-21 11:44:21,345 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 198.2 MB. Free memory was 179.3 MB in the beginning and 179.2 MB in the end (delta: 87.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:44:21,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.81 ms. Allocated memory is still 198.2 MB. Free memory was 160.8 MB in the beginning and 170.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. [2021-08-21 11:44:21,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.10 ms. Allocated memory is still 198.2 MB. Free memory was 170.8 MB in the beginning and 168.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:44:21,346 INFO L168 Benchmark]: Boogie Preprocessor took 35.46 ms. Allocated memory is still 198.2 MB. Free memory was 168.9 MB in the beginning and 167.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:44:21,347 INFO L168 Benchmark]: RCFGBuilder took 463.97 ms. Allocated memory is still 198.2 MB. Free memory was 167.5 MB in the beginning and 143.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:44:21,347 INFO L168 Benchmark]: TraceAbstraction took 3252.31 ms. Allocated memory was 198.2 MB in the beginning and 400.6 MB in the end (delta: 202.4 MB). Free memory was 142.8 MB in the beginning and 213.2 MB in the end (delta: -70.4 MB). Peak memory consumption was 133.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:44:21,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 198.2 MB. Free memory was 179.3 MB in the beginning and 179.2 MB in the end (delta: 87.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 520.81 ms. Allocated memory is still 198.2 MB. Free memory was 160.8 MB in the beginning and 170.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 62.10 ms. Allocated memory is still 198.2 MB. Free memory was 170.8 MB in the beginning and 168.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.46 ms. Allocated memory is still 198.2 MB. Free memory was 168.9 MB in the beginning and 167.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 463.97 ms. Allocated memory is still 198.2 MB. Free memory was 167.5 MB in the beginning and 143.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3252.31 ms. Allocated memory was 198.2 MB in the beginning and 400.6 MB in the end (delta: 202.4 MB). Free memory was 142.8 MB in the beginning and 213.2 MB in the end (delta: -70.4 MB). Peak memory consumption was 133.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3152.7ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 94.1ms, AutomataDifference: 1134.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 267.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 430 SDtfs, 599 SDslu, 1371 SDs, 0 SdLazy, 118 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 147.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 705.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 553.1ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.6ms SsaConstructionTime, 206.0ms SatisfiabilityAnalysisTime, 682.6ms InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 11:44:21,387 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...