/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 05:50:22,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 05:50:22,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 05:50:22,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 05:50:22,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 05:50:22,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 05:50:22,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 05:50:22,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random521.epf [2021-10-25 05:50:22,673 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 05:50:22,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 05:50:22,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 05:50:22,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 05:50:22,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 05:50:22,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 05:50:22,674 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 05:50:22,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 05:50:22,674 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 05:50:22,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 05:50:22,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 05:50:22,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 05:50:22,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 05:50:22,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 05:50:22,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 05:50:22,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 05:50:22,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 05:50:22,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 05:50:22,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 05:50:22,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 05:50:22,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 05:50:22,676 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 05:50:22,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 05:50:22,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 05:50:22,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 05:50:22,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 05:50:22,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 05:50:22,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 05:50:22,677 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 05:50:22,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 05:50:22,677 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 05:50:22,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 05:50:22,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 05:50:22,677 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 05:50:22,678 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 05:50:22,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 05:50:22,678 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 [2021-10-25 05:50:22,678 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 05:50:22,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 05:50:22,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 05:50:22,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 05:50:22,859 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-25 05:50:22,860 INFO L275 PluginConnector]: CDTParser initialized [2021-10-25 05:50:22,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2021-10-25 05:50:22,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e33f1923a/3e2cef4804c249a68e7931b0ce7b44f3/FLAG31ee1e287 [2021-10-25 05:50:23,312 INFO L306 CDTParser]: Found 1 translation units. [2021-10-25 05:50:23,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2021-10-25 05:50:23,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e33f1923a/3e2cef4804c249a68e7931b0ce7b44f3/FLAG31ee1e287 [2021-10-25 05:50:23,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e33f1923a/3e2cef4804c249a68e7931b0ce7b44f3 [2021-10-25 05:50:23,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 05:50:23,335 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-25 05:50:23,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-25 05:50:23,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-25 05:50:23,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-25 05:50:23,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbc3331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23, skipping insertion in model container [2021-10-25 05:50:23,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-25 05:50:23,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-25 05:50:23,515 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/safe015_pso.opt.i[949,962] [2021-10-25 05:50:23,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-25 05:50:23,651 INFO L203 MainTranslator]: Completed pre-run [2021-10-25 05:50:23,661 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/safe015_pso.opt.i[949,962] [2021-10-25 05:50:23,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-25 05:50:23,717 INFO L208 MainTranslator]: Completed translation [2021-10-25 05:50:23,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23 WrapperNode [2021-10-25 05:50:23,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-25 05:50:23,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 05:50:23,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 05:50:23,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 05:50:23,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 05:50:23,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 05:50:23,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 05:50:23,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 05:50:23,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 05:50:23,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 05:50:23,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 05:50:23,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 05:50:23,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (1/1) ... [2021-10-25 05:50:23,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 05:50:23,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 05:50:23,861 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) [2021-10-25 05:50:23,875 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 [2021-10-25 05:50:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-25 05:50:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-25 05:50:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-25 05:50:23,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-25 05:50:23,901 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-25 05:50:23,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-25 05:50:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-25 05:50:23,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-25 05:50:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-25 05:50:23,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-25 05:50:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-25 05:50:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-25 05:50:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 05:50:23,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 05:50:23,904 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 05:50:24,194 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 05:50:24,194 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-25 05:50:24,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 05:50:24 BoogieIcfgContainer [2021-10-25 05:50:24,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 05:50:24,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 05:50:24,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 05:50:24,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 05:50:24,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 05:50:23" (1/3) ... [2021-10-25 05:50:24,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a2e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 05:50:24, skipping insertion in model container [2021-10-25 05:50:24,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 05:50:23" (2/3) ... [2021-10-25 05:50:24,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a2e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 05:50:24, skipping insertion in model container [2021-10-25 05:50:24,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 05:50:24" (3/3) ... [2021-10-25 05:50:24,201 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.opt.i [2021-10-25 05:50:24,204 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 05:50:24,204 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 05:50:24,204 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 05:50:24,204 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 05:50:24,228 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,228 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,228 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,228 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,228 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,228 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,229 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,229 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,229 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,229 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,229 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,229 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,230 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,230 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,230 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,230 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,231 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,231 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,231 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,231 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,231 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,234 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,235 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,235 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,239 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,239 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,241 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,242 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 05:50:24,244 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-25 05:50:24,271 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 05:50:24,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 05:50:24,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 05:50:24,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-25 05:50:24,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 05:50:24,332 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 05:50:24,332 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-25 05:50:24,462 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 05:50:24,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:50:24,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1082282539, now seen corresponding path program 1 times [2021-10-25 05:50:24,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:50:24,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713377753] [2021-10-25 05:50:24,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:50:24,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:50:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:50:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:50:24,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:50:24,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713377753] [2021-10-25 05:50:24,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713377753] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:50:24,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:50:24,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-25 05:50:24,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928347068] [2021-10-25 05:50:24,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 05:50:24,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:50:24,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 05:50:24,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-25 05:50:24,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:24,782 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:50:24,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2021-10-25 05:50:24,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:24,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 05:50:24,922 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 05:50:24,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:50:24,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1032482168, now seen corresponding path program 1 times [2021-10-25 05:50:24,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:50:24,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745186707] [2021-10-25 05:50:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:50:24,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:50:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:50:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:50:25,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:50:25,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745186707] [2021-10-25 05:50:25,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745186707] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:50:25,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:50:25,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-25 05:50:25,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244291612] [2021-10-25 05:50:25,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 05:50:25,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:50:25,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 05:50:25,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-25 05:50:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:25,054 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:50:25,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2021-10-25 05:50:25,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:25,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-25 05:50:25,228 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 05:50:25,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:50:25,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1337319796, now seen corresponding path program 1 times [2021-10-25 05:50:25,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:50:25,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80278091] [2021-10-25 05:50:25,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:50:25,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:50:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:50:25,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:50:25,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:50:25,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80278091] [2021-10-25 05:50:25,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80278091] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:50:25,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:50:25,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-25 05:50:25,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19416248] [2021-10-25 05:50:25,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 05:50:25,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:50:25,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 05:50:25,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-25 05:50:25,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:25,376 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:50:25,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-10-25 05:50:25,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 05:50:25,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-25 05:50:25,707 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 05:50:25,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:50:25,708 INFO L82 PathProgramCache]: Analyzing trace with hash -801886714, now seen corresponding path program 2 times [2021-10-25 05:50:25,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:50:25,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649037741] [2021-10-25 05:50:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:50:25,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:50:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:50:25,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:50:25,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:50:25,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649037741] [2021-10-25 05:50:25,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649037741] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:50:25,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:50:25,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-25 05:50:25,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021487433] [2021-10-25 05:50:25,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 05:50:25,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:50:25,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 05:50:25,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-25 05:50:25,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:25,791 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:50:25,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-10-25 05:50:25,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 05:50:25,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 05:50:25,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 05:50:25,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-25 05:50:25,903 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 05:50:25,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:50:25,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1460940802, now seen corresponding path program 2 times [2021-10-25 05:50:25,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:50:25,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030188627] [2021-10-25 05:50:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:50:25,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:50:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:50:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:50:26,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:50:26,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030188627] [2021-10-25 05:50:26,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030188627] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:50:26,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:50:26,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-25 05:50:26,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975939975] [2021-10-25 05:50:26,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 05:50:26,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:50:26,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 05:50:26,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-25 05:50:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:26,027 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:50:26,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-10-25 05:50:26,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:26,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:26,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 05:50:26,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 05:50:26,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 05:50:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-25 05:50:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 05:50:26,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-25 05:50:26,159 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 05:50:26,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 05:50:26,159 INFO L82 PathProgramCache]: Analyzing trace with hash 989251780, now seen corresponding path program 3 times [2021-10-25 05:50:26,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 05:50:26,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528514531] [2021-10-25 05:50:26,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 05:50:26,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 05:50:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 05:50:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 05:50:26,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 05:50:26,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528514531] [2021-10-25 05:50:26,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528514531] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 05:50:26,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 05:50:26,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-25 05:50:26,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14498763] [2021-10-25 05:50:26,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 05:50:26,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 05:50:26,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 05:50:26,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-25 05:50:26,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:26,285 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 05:50:26,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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) [2021-10-25 05:50:26,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:26,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:26,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 05:50:26,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-25 05:50:26,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 05:50:26,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 05:50:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 05:50:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 05:50:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 05:50:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-25 05:50:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 05:50:27,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-25 05:50:27,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 05:50:27,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 05:50:27,063 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-25 05:50:27,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-25 05:50:27,069 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 05:50:27,069 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 05:50:27,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 05:50:27 BasicIcfg [2021-10-25 05:50:27,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 05:50:27,071 INFO L168 Benchmark]: Toolchain (without parser) took 3735.87 ms. Allocated memory was 180.4 MB in the beginning and 285.2 MB in the end (delta: 104.9 MB). Free memory was 122.5 MB in the beginning and 227.2 MB in the end (delta: -104.7 MB). Peak memory consumption was 152.4 MB. Max. memory is 8.0 GB. [2021-10-25 05:50:27,072 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 180.4 MB. Free memory was 140.6 MB in the beginning and 140.6 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 05:50:27,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.84 ms. Allocated memory was 180.4 MB in the beginning and 234.9 MB in the end (delta: 54.5 MB). Free memory was 122.3 MB in the beginning and 196.0 MB in the end (delta: -73.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-25 05:50:27,072 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.32 ms. Allocated memory is still 234.9 MB. Free memory was 196.0 MB in the beginning and 194.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 05:50:27,072 INFO L168 Benchmark]: Boogie Preprocessor took 37.96 ms. Allocated memory is still 234.9 MB. Free memory was 194.5 MB in the beginning and 192.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-25 05:50:27,073 INFO L168 Benchmark]: RCFGBuilder took 388.85 ms. Allocated memory is still 234.9 MB. Free memory was 192.8 MB in the beginning and 169.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-10-25 05:50:27,073 INFO L168 Benchmark]: TraceAbstraction took 2873.60 ms. Allocated memory was 234.9 MB in the beginning and 285.2 MB in the end (delta: 50.3 MB). Free memory was 169.3 MB in the beginning and 227.2 MB in the end (delta: -58.0 MB). Peak memory consumption was 145.5 MB. Max. memory is 8.0 GB. [2021-10-25 05:50:27,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 180.4 MB. Free memory was 140.6 MB in the beginning and 140.6 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 380.84 ms. Allocated memory was 180.4 MB in the beginning and 234.9 MB in the end (delta: 54.5 MB). Free memory was 122.3 MB in the beginning and 196.0 MB in the end (delta: -73.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.32 ms. Allocated memory is still 234.9 MB. Free memory was 196.0 MB in the beginning and 194.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.96 ms. Allocated memory is still 234.9 MB. Free memory was 194.5 MB in the beginning and 192.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 388.85 ms. Allocated memory is still 234.9 MB. Free memory was 192.8 MB in the beginning and 169.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2873.60 ms. Allocated memory was 234.9 MB in the beginning and 285.2 MB in the end (delta: 50.3 MB). Free memory was 169.3 MB in the beginning and 227.2 MB in the end (delta: -58.0 MB). Peak memory consumption was 145.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 38643, positive: 36767, positive conditional: 35474, positive unconditional: 1293, negative: 1876, negative conditional: 1848, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37867, positive: 36767, positive conditional: 0, positive unconditional: 36767, negative: 1100, negative conditional: 0, negative unconditional: 1100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1334, positive: 1306, positive conditional: 0, positive unconditional: 1306, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1334, positive: 1300, positive conditional: 0, positive unconditional: 1300, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37867, positive: 35461, positive conditional: 0, positive unconditional: 35461, negative: 1072, negative conditional: 0, negative unconditional: 1072, unknown: 1334, unknown conditional: 0, unknown unconditional: 1334] , Statistics on independence cache: Total cache size (in pairs): 1334, Positive cache size: 1306, Positive conditional cache size: 0, Positive unconditional cache size: 1306, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Independence queries for same thread: 776 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 273, Number of persistent set computation: 2419, Number of trivial persistent sets: 1014, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 38643, positive: 36767, positive conditional: 35474, positive unconditional: 1293, negative: 1876, negative conditional: 1848, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37867, positive: 36767, positive conditional: 0, positive unconditional: 36767, negative: 1100, negative conditional: 0, negative unconditional: 1100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1334, positive: 1306, positive conditional: 0, positive unconditional: 1306, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1334, positive: 1300, positive conditional: 0, positive unconditional: 1300, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37867, positive: 35461, positive conditional: 0, positive unconditional: 35461, negative: 1072, negative conditional: 0, negative unconditional: 1072, unknown: 1334, unknown conditional: 0, unknown unconditional: 1334] , Statistics on independence cache: Total cache size (in pairs): 1334, Positive cache size: 1306, Positive conditional cache size: 0, Positive unconditional cache size: 1306, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Independence queries for same thread: 776 - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2798.3ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.9ms, PartialOrderReductionTime: 1778.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.2ms SsaConstructionTime, 123.3ms SatisfiabilityAnalysisTime, 686.7ms InterpolantComputationTime, 383 NumberOfCodeBlocks, 383 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 377 ConstructedInterpolants, 0 QuantifiedInterpolants, 972 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2021-10-25 05:50:27,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-25 05:50:27,324 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...