/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-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-08 05:52:18,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-08 05:52:18,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-08 05:52:18,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-08 05:52:18,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-08 05:52:18,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-08 05:52:18,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-08 05:52:18,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random7777.epf [2021-08-08 05:52:18,803 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-08 05:52:18,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-08 05:52:18,804 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-08 05:52:18,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-08 05:52:18,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-08 05:52:18,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-08 05:52:18,805 INFO L138 SettingsManager]: * Use SBE=true [2021-08-08 05:52:18,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-08 05:52:18,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-08 05:52:18,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-08 05:52:18,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-08 05:52:18,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-08 05:52:18,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-08 05:52:18,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-08 05:52:18,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-08 05:52:18,806 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-08 05:52:18,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-08 05:52:18,806 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-08 05:52:18,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-08 05:52:18,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-08 05:52:18,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-08 05:52:18,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-08 05:52:18,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-08 05:52:18,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-08 05:52:18,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-08 05:52:18,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-08 05:52:18,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-08 05:52:18,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-08 05:52:18,807 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-08-08 05:52:18,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-08 05:52:18,808 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-08 05:52:18,808 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-08 05:52:18,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-08 05:52:18,808 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-08-08 05:52:18,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-08 05:52:18,808 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-08 05:52:19,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-08 05:52:19,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-08 05:52:19,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-08 05:52:19,072 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-08 05:52:19,073 INFO L275 PluginConnector]: CDTParser initialized [2021-08-08 05:52:19,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2021-08-08 05:52:19,116 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908e72a8e/b9f396a8ebc54433ac4b5dfabca06182/FLAGe624f1fc8 [2021-08-08 05:52:19,769 INFO L306 CDTParser]: Found 1 translation units. [2021-08-08 05:52:19,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2021-08-08 05:52:19,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908e72a8e/b9f396a8ebc54433ac4b5dfabca06182/FLAGe624f1fc8 [2021-08-08 05:52:19,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908e72a8e/b9f396a8ebc54433ac4b5dfabca06182 [2021-08-08 05:52:19,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-08 05:52:19,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-08 05:52:19,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-08 05:52:19,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-08 05:52:19,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-08 05:52:19,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 05:52:19" (1/1) ... [2021-08-08 05:52:19,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ddb27bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:19, skipping insertion in model container [2021-08-08 05:52:19,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 05:52:19" (1/1) ... [2021-08-08 05:52:19,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-08 05:52:19,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-08 05:52:20,120 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30132,30145] [2021-08-08 05:52:20,125 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30481,30494] [2021-08-08 05:52:20,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-08 05:52:20,136 INFO L203 MainTranslator]: Completed pre-run [2021-08-08 05:52:20,171 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30132,30145] [2021-08-08 05:52:20,172 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i[30481,30494] [2021-08-08 05:52:20,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-08 05:52:20,201 INFO L208 MainTranslator]: Completed translation [2021-08-08 05:52:20,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20 WrapperNode [2021-08-08 05:52:20,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-08 05:52:20,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-08 05:52:20,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-08 05:52:20,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-08 05:52:20,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-08 05:52:20,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-08 05:52:20,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-08 05:52:20,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-08 05:52:20,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-08 05:52:20,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-08 05:52:20,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-08 05:52:20,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-08 05:52:20,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (1/1) ... [2021-08-08 05:52:20,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-08 05:52:20,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 05:52:20,310 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) [2021-08-08 05:52:20,325 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 [2021-08-08 05:52:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-08-08 05:52:20,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-08-08 05:52:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-08 05:52:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-08 05:52:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-08 05:52:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-08 05:52:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-08 05:52:20,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-08 05:52:20,360 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-08 05:52:20,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-08 05:52:20,694 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-08 05:52:20,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 05:52:20 BoogieIcfgContainer [2021-08-08 05:52:20,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-08 05:52:20,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-08 05:52:20,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-08 05:52:20,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-08 05:52:20,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 05:52:19" (1/3) ... [2021-08-08 05:52:20,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548f304f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 05:52:20, skipping insertion in model container [2021-08-08 05:52:20,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 05:52:20" (2/3) ... [2021-08-08 05:52:20,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548f304f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 05:52:20, skipping insertion in model container [2021-08-08 05:52:20,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 05:52:20" (3/3) ... [2021-08-08 05:52:20,703 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2021-08-08 05:52:20,706 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-08 05:52:20,707 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-08 05:52:20,707 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-08 05:52:20,707 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-08 05:52:20,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-08 05:52:20,738 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-08 05:52:20,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-08 05:52:20,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 05:52:20,787 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) [2021-08-08 05:52:20,793 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 [2021-08-08 05:52:20,812 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-08-08 05:52:20,819 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 [2021-08-08 05:52:20,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-08 05:52:20,901 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:20,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:20,905 INFO L82 PathProgramCache]: Analyzing trace with hash -197194738, now seen corresponding path program 1 times [2021-08-08 05:52:20,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:20,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035791854] [2021-08-08 05:52:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:20,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 05:52:21,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:21,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035791854] [2021-08-08 05:52:21,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035791854] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:21,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:21,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-08 05:52:21,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805913172] [2021-08-08 05:52:21,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-08 05:52:21,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:21,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-08 05:52:21,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-08 05:52:21,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,067 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:21,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2021-08-08 05:52:21,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-08 05:52:21,100 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:21,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:21,100 INFO L82 PathProgramCache]: Analyzing trace with hash 178172977, now seen corresponding path program 1 times [2021-08-08 05:52:21,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:21,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534044864] [2021-08-08 05:52:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:21,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:21,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 05:52:21,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:21,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534044864] [2021-08-08 05:52:21,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534044864] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:21,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:21,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:21,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658850203] [2021-08-08 05:52:21,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:21,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:21,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:21,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:21,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,162 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:21,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-08 05:52:21,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-08 05:52:21,289 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:21,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:21,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1337190142, now seen corresponding path program 1 times [2021-08-08 05:52:21,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:21,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417881836] [2021-08-08 05:52:21,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:21,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:21,368 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-08-08 05:52:21,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:21,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417881836] [2021-08-08 05:52:21,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417881836] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:21,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:21,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:21,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429191132] [2021-08-08 05:52:21,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:21,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:21,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:21,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:21,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,370 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:21,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-08-08 05:52:21,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-08 05:52:21,555 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:21,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:21,555 INFO L82 PathProgramCache]: Analyzing trace with hash -343217491, now seen corresponding path program 1 times [2021-08-08 05:52:21,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:21,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334934007] [2021-08-08 05:52:21,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:21,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2021-08-08 05:52:21,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:21,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334934007] [2021-08-08 05:52:21,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334934007] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:21,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:21,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:21,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991048063] [2021-08-08 05:52:21,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:21,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:21,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:21,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:21,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,679 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:21,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-08-08 05:52:21,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-08 05:52:21,757 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:21,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:21,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1975185265, now seen corresponding path program 1 times [2021-08-08 05:52:21,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:21,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067135313] [2021-08-08 05:52:21,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:21,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:21,800 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-08-08 05:52:21,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:21,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067135313] [2021-08-08 05:52:21,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067135313] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:21,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:21,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:21,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532154348] [2021-08-08 05:52:21,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:21,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:21,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:21,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:21,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,802 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:21,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-08-08 05:52:21,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-08 05:52:21,838 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:21,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:21,838 INFO L82 PathProgramCache]: Analyzing trace with hash -939766735, now seen corresponding path program 2 times [2021-08-08 05:52:21,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:21,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111910557] [2021-08-08 05:52:21,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:21,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:21,882 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-08-08 05:52:21,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:21,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111910557] [2021-08-08 05:52:21,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111910557] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:21,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:21,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:21,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991092785] [2021-08-08 05:52:21,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:21,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:21,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:21,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,884 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:21,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-08-08 05:52:21,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:21,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:21,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-08 05:52:21,987 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:21,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:21,988 INFO L82 PathProgramCache]: Analyzing trace with hash 30717363, now seen corresponding path program 1 times [2021-08-08 05:52:21,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:21,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082790844] [2021-08-08 05:52:21,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:21,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-08-08 05:52:22,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:22,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082790844] [2021-08-08 05:52:22,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082790844] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:22,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:22,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:22,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575730620] [2021-08-08 05:52:22,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:22,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:22,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:22,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:22,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,043 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:22,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-08-08 05:52:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-08 05:52:22,101 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:22,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:22,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1452051058, now seen corresponding path program 1 times [2021-08-08 05:52:22,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:22,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640040147] [2021-08-08 05:52:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:22,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-08-08 05:52:22,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:22,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640040147] [2021-08-08 05:52:22,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640040147] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:22,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:22,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:22,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035576910] [2021-08-08 05:52:22,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:22,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:22,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:22,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:22,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,126 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:22,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-08-08 05:52:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-08 05:52:22,164 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:22,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:22,164 INFO L82 PathProgramCache]: Analyzing trace with hash 464925627, now seen corresponding path program 1 times [2021-08-08 05:52:22,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:22,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779275834] [2021-08-08 05:52:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:22,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-08 05:52:22,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:22,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779275834] [2021-08-08 05:52:22,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779275834] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:22,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:22,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:22,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349836865] [2021-08-08 05:52:22,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:22,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:22,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:22,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,186 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:22,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-08-08 05:52:22,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-08 05:52:22,214 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:22,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:22,214 INFO L82 PathProgramCache]: Analyzing trace with hash -929068842, now seen corresponding path program 1 times [2021-08-08 05:52:22,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:22,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563745727] [2021-08-08 05:52:22,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:22,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-08 05:52:22,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:22,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563745727] [2021-08-08 05:52:22,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563745727] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:22,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:22,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:22,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262374887] [2021-08-08 05:52:22,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:22,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:22,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:22,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,240 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:22,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2021-08-08 05:52:22,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-08 05:52:22,279 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-08 05:52:22,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:22,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1506173022, now seen corresponding path program 2 times [2021-08-08 05:52:22,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:22,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223967513] [2021-08-08 05:52:22,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:22,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-08 05:52:22,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:22,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223967513] [2021-08-08 05:52:22,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223967513] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:22,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:22,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:22,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001356465] [2021-08-08 05:52:22,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:22,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:22,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:22,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,302 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:22,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,373 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-08 05:52:22,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-08 05:52:22,378 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2021-08-08 05:52:22,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-08 05:52:22,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 05:52:22,392 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-08 05:52:22,407 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-08 05:52:22,407 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 [2021-08-08 05:52:22,408 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-08 05:52:22,413 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-08-08 05:52:22,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:22,413 INFO L82 PathProgramCache]: Analyzing trace with hash -72989188, now seen corresponding path program 1 times [2021-08-08 05:52:22,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:22,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74273772] [2021-08-08 05:52:22,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:22,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:22,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-08-08 05:52:22,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 05:52:22,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:22,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74273772] [2021-08-08 05:52:22,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74273772] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:22,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:22,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-08 05:52:22,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008962611] [2021-08-08 05:52:22,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-08 05:52:22,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:22,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-08 05:52:22,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-08 05:52:22,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,425 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:22,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 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) [2021-08-08 05:52:22,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-08 05:52:22,458 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-08-08 05:52:22,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:22,458 INFO L82 PathProgramCache]: Analyzing trace with hash -442286661, now seen corresponding path program 1 times [2021-08-08 05:52:22,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:22,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399701719] [2021-08-08 05:52:22,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:22,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 05:52:22,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:22,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399701719] [2021-08-08 05:52:22,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399701719] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:22,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:22,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:22,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440033268] [2021-08-08 05:52:22,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:22,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:22,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:22,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,476 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:22,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-08-08 05:52:22,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-08 05:52:22,625 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-08-08 05:52:22,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:22,626 INFO L82 PathProgramCache]: Analyzing trace with hash 174974513, now seen corresponding path program 1 times [2021-08-08 05:52:22,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:22,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809072891] [2021-08-08 05:52:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:22,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-08-08 05:52:22,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:22,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809072891] [2021-08-08 05:52:22,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809072891] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:22,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:22,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:22,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295936779] [2021-08-08 05:52:22,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:22,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:22,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:22,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,659 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:22,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-08 05:52:22,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-08 05:52:22,734 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-08-08 05:52:22,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 05:52:22,734 INFO L82 PathProgramCache]: Analyzing trace with hash 189203064, now seen corresponding path program 1 times [2021-08-08 05:52:22,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 05:52:22,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804887110] [2021-08-08 05:52:22,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 05:52:22,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 05:52:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 05:52:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-08-08 05:52:22,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 05:52:22,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804887110] [2021-08-08 05:52:22,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804887110] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 05:52:22,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 05:52:22,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-08 05:52:22,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660731165] [2021-08-08 05:52:22,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-08 05:52:22,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 05:52:22,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-08 05:52:22,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-08 05:52:22,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,767 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 05:52:22,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-08-08 05:52:22,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 05:52:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-08 05:52:22,841 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-08 05:52:22,841 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-08 05:52:22,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-08 05:52:22,843 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/2) [2021-08-08 05:52:22,843 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-08 05:52:22,843 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-08 05:52:22,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 05:52:22 BasicIcfg [2021-08-08 05:52:22,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-08 05:52:22,846 INFO L168 Benchmark]: Toolchain (without parser) took 3049.67 ms. Allocated memory was 210.8 MB in the beginning and 273.7 MB in the end (delta: 62.9 MB). Free memory was 173.9 MB in the beginning and 121.4 MB in the end (delta: 52.5 MB). Peak memory consumption was 116.2 MB. Max. memory is 8.0 GB. [2021-08-08 05:52:22,846 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 210.8 MB. Free memory is still 192.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-08 05:52:22,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.44 ms. Allocated memory is still 210.8 MB. Free memory was 173.8 MB in the beginning and 184.3 MB in the end (delta: -10.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. [2021-08-08 05:52:22,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.09 ms. Allocated memory is still 210.8 MB. Free memory was 184.3 MB in the beginning and 182.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-08 05:52:22,849 INFO L168 Benchmark]: Boogie Preprocessor took 31.38 ms. Allocated memory is still 210.8 MB. Free memory was 182.7 MB in the beginning and 181.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-08 05:52:22,849 INFO L168 Benchmark]: RCFGBuilder took 411.25 ms. Allocated memory is still 210.8 MB. Free memory was 181.2 MB in the beginning and 158.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-08 05:52:22,850 INFO L168 Benchmark]: TraceAbstraction took 2147.11 ms. Allocated memory was 210.8 MB in the beginning and 273.7 MB in the end (delta: 62.9 MB). Free memory was 157.6 MB in the beginning and 121.4 MB in the end (delta: 36.1 MB). Peak memory consumption was 99.6 MB. Max. memory is 8.0 GB. [2021-08-08 05:52:22,855 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 210.8 MB. Free memory is still 192.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 403.44 ms. Allocated memory is still 210.8 MB. Free memory was 173.8 MB in the beginning and 184.3 MB in the end (delta: -10.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.09 ms. Allocated memory is still 210.8 MB. Free memory was 184.3 MB in the beginning and 182.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.38 ms. Allocated memory is still 210.8 MB. Free memory was 182.7 MB in the beginning and 181.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 411.25 ms. Allocated memory is still 210.8 MB. Free memory was 181.2 MB in the beginning and 158.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2147.11 ms. Allocated memory was 210.8 MB in the beginning and 273.7 MB in the end (delta: 62.9 MB). Free memory was 157.6 MB in the beginning and 121.4 MB in the end (delta: 36.1 MB). Peak memory consumption was 99.6 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: 14918, positive: 10010, positive conditional: 7514, positive unconditional: 2496, negative: 4908, negative conditional: 4803, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10554, positive: 10010, positive conditional: 7514, positive unconditional: 2496, negative: 544, negative conditional: 439, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10554, positive: 10010, positive conditional: 7514, positive unconditional: 2496, negative: 544, negative conditional: 439, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13918, positive: 10010, positive conditional: 7495, positive unconditional: 2515, negative: 3908, negative conditional: 3364, negative unconditional: 544, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13918, positive: 10010, positive conditional: 1332, positive unconditional: 8678, negative: 3908, negative conditional: 171, negative unconditional: 3737, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13918, positive: 10010, positive conditional: 1332, positive unconditional: 8678, negative: 3908, negative conditional: 171, negative unconditional: 3737, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2105, positive: 1970, positive conditional: 47, positive unconditional: 1923, negative: 135, negative conditional: 30, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2105, positive: 1838, positive conditional: 0, positive unconditional: 1838, negative: 267, negative conditional: 0, negative unconditional: 267, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 267, positive: 132, positive conditional: 47, positive unconditional: 85, negative: 135, negative conditional: 30, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 270, positive: 160, positive conditional: 47, positive unconditional: 114, negative: 110, negative conditional: 27, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13918, positive: 8040, positive conditional: 1285, positive unconditional: 6755, negative: 3773, negative conditional: 141, negative unconditional: 3632, unknown: 2105, unknown conditional: 77, unknown unconditional: 2028] , Statistics on independence cache: Total cache size (in pairs): 2105, Positive cache size: 1970, Positive conditional cache size: 47, Positive unconditional cache size: 1923, Negative cache size: 135, Negative conditional cache size: 30, Negative unconditional cache size: 105, Eliminated conditions: 9356, Maximal queried relation: 11, Independence queries for same thread: 4364 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 207, Number of persistent set computation: 299, Number of trivial persistent sets: 290, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2601, positive: 2496, positive conditional: 0, positive unconditional: 2496, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 14918, positive: 10010, positive conditional: 7514, positive unconditional: 2496, negative: 4908, negative conditional: 4803, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10554, positive: 10010, positive conditional: 7514, positive unconditional: 2496, negative: 544, negative conditional: 439, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10554, positive: 10010, positive conditional: 7514, positive unconditional: 2496, negative: 544, negative conditional: 439, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13918, positive: 10010, positive conditional: 7495, positive unconditional: 2515, negative: 3908, negative conditional: 3364, negative unconditional: 544, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13918, positive: 10010, positive conditional: 1332, positive unconditional: 8678, negative: 3908, negative conditional: 171, negative unconditional: 3737, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13918, positive: 10010, positive conditional: 1332, positive unconditional: 8678, negative: 3908, negative conditional: 171, negative unconditional: 3737, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2105, positive: 1970, positive conditional: 47, positive unconditional: 1923, negative: 135, negative conditional: 30, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2105, positive: 1838, positive conditional: 0, positive unconditional: 1838, negative: 267, negative conditional: 0, negative unconditional: 267, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 267, positive: 132, positive conditional: 47, positive unconditional: 85, negative: 135, negative conditional: 30, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 270, positive: 160, positive conditional: 47, positive unconditional: 114, negative: 110, negative conditional: 27, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13918, positive: 8040, positive conditional: 1285, positive unconditional: 6755, negative: 3773, negative conditional: 141, negative unconditional: 3632, unknown: 2105, unknown conditional: 77, unknown unconditional: 2028] , Statistics on independence cache: Total cache size (in pairs): 2105, Positive cache size: 1970, Positive conditional cache size: 47, Positive unconditional cache size: 1923, Negative cache size: 135, Negative conditional cache size: 30, Negative unconditional cache size: 105, Eliminated conditions: 9356, Maximal queried relation: 11, Independence queries for same thread: 4364 - 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 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15870, positive: 10237, positive conditional: 8105, positive unconditional: 2132, negative: 5633, negative conditional: 5527, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11017, positive: 10237, positive conditional: 8105, positive unconditional: 2132, negative: 780, negative conditional: 674, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11017, positive: 10237, positive conditional: 8105, positive unconditional: 2132, negative: 780, negative conditional: 674, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12998, positive: 10237, positive conditional: 8094, positive unconditional: 2143, negative: 2761, negative conditional: 1981, negative unconditional: 780, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12998, positive: 10237, positive conditional: 1476, positive unconditional: 8761, negative: 2761, negative conditional: 64, negative unconditional: 2697, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12998, positive: 10237, positive conditional: 1476, positive unconditional: 8761, negative: 2761, negative conditional: 64, negative unconditional: 2697, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1869, positive: 1744, positive conditional: 23, positive unconditional: 1721, negative: 125, negative conditional: 19, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1869, positive: 1626, positive conditional: 0, positive unconditional: 1626, negative: 243, negative conditional: 0, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 243, positive: 118, positive conditional: 23, positive unconditional: 95, negative: 125, negative conditional: 19, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 76, positive conditional: 14, positive unconditional: 62, negative: 66, negative conditional: 12, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12998, positive: 8493, positive conditional: 1453, positive unconditional: 7040, negative: 2636, negative conditional: 45, negative unconditional: 2591, unknown: 1869, unknown conditional: 42, unknown unconditional: 1827] , Statistics on independence cache: Total cache size (in pairs): 1869, Positive cache size: 1744, Positive conditional cache size: 23, Positive unconditional cache size: 1721, Negative cache size: 125, Negative conditional cache size: 19, Negative unconditional cache size: 106, Eliminated conditions: 8535, Maximal queried relation: 4, Independence queries for same thread: 4853 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 113, Number of persistent set computation: 248, Number of trivial persistent sets: 234, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2238, positive: 2132, positive conditional: 0, positive unconditional: 2132, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 15870, positive: 10237, positive conditional: 8105, positive unconditional: 2132, negative: 5633, negative conditional: 5527, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11017, positive: 10237, positive conditional: 8105, positive unconditional: 2132, negative: 780, negative conditional: 674, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11017, positive: 10237, positive conditional: 8105, positive unconditional: 2132, negative: 780, negative conditional: 674, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12998, positive: 10237, positive conditional: 8094, positive unconditional: 2143, negative: 2761, negative conditional: 1981, negative unconditional: 780, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12998, positive: 10237, positive conditional: 1476, positive unconditional: 8761, negative: 2761, negative conditional: 64, negative unconditional: 2697, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12998, positive: 10237, positive conditional: 1476, positive unconditional: 8761, negative: 2761, negative conditional: 64, negative unconditional: 2697, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1869, positive: 1744, positive conditional: 23, positive unconditional: 1721, negative: 125, negative conditional: 19, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1869, positive: 1626, positive conditional: 0, positive unconditional: 1626, negative: 243, negative conditional: 0, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 243, positive: 118, positive conditional: 23, positive unconditional: 95, negative: 125, negative conditional: 19, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 76, positive conditional: 14, positive unconditional: 62, negative: 66, negative conditional: 12, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12998, positive: 8493, positive conditional: 1453, positive unconditional: 7040, negative: 2636, negative conditional: 45, negative unconditional: 2591, unknown: 1869, unknown conditional: 42, unknown unconditional: 1827] , Statistics on independence cache: Total cache size (in pairs): 1869, Positive cache size: 1744, Positive conditional cache size: 23, Positive unconditional cache size: 1721, Negative cache size: 125, Negative conditional cache size: 19, Negative unconditional cache size: 106, Eliminated conditions: 8535, Maximal queried relation: 4, Independence queries for same thread: 4853 - 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: 698]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 716]: 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: thr1Thread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 89 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1607.3ms, OverallIterations: 11, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.5ms, PartialOrderReductionTime: 848.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.7ms SsaConstructionTime, 99.7ms SatisfiabilityAnalysisTime, 408.4ms InterpolantComputationTime, 1104 NumberOfCodeBlocks, 1104 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1093 ConstructedInterpolants, 0 QuantifiedInterpolants, 1185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 1699/1699 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 89 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 463.4ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.0ms, PartialOrderReductionTime: 332.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, 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: 4.7ms SsaConstructionTime, 15.6ms SatisfiabilityAnalysisTime, 61.2ms InterpolantComputationTime, 435 NumberOfCodeBlocks, 435 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 431 ConstructedInterpolants, 0 QuantifiedInterpolants, 445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1046/1046 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-08 05:52:22,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2021-08-08 05:52:23,097 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 [2021-08-08 05:52:23,296 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...