/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 19:03:07,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 19:03:07,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 19:03:07,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 19:03:07,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-06 19:03:07,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-06 19:03:07,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-06 19:03:07,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-06 19:03:07,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-06 19:03:07,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-06 19:03:07,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-06 19:03:07,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-06 19:03:07,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-06 19:03:07,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-06 19:03:07,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-06 19:03:07,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-06 19:03:07,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-06 19:03:07,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-06 19:03:07,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-06 19:03:07,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-06 19:03:07,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-08-06 19:03:07,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 19:03:07,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 19:03:07,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 19:03:07,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 19:03:07,990 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 19:03:07,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 19:03:07,990 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 19:03:07,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 19:03:07,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 19:03:07,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 19:03:07,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 19:03:07,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 19:03:07,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 19:03:07,992 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 19:03:07,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 19:03:07,992 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 19:03:07,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 19:03:07,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 19:03:07,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 19:03:07,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 19:03:07,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 19:03:07,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 19:03:07,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 19:03:07,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 19:03:07,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 19:03:07,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 19:03:07,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 19:03:07,994 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 19:03:07,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 19:03:07,994 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-06 19:03:07,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 19:03:08,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 19:03:08,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 19:03:08,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 19:03:08,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-06 19:03:08,330 INFO L275 PluginConnector]: CDTParser initialized [2021-08-06 19:03:08,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-08-06 19:03:08,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/def826811/08a37a31841544d88381174733b6fa29/FLAGe5910a47a [2021-08-06 19:03:08,880 INFO L306 CDTParser]: Found 1 translation units. [2021-08-06 19:03:08,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-08-06 19:03:08,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/def826811/08a37a31841544d88381174733b6fa29/FLAGe5910a47a [2021-08-06 19:03:09,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/def826811/08a37a31841544d88381174733b6fa29 [2021-08-06 19:03:09,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 19:03:09,415 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-06 19:03:09,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-06 19:03:09,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-06 19:03:09,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-06 19:03:09,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21779772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09, skipping insertion in model container [2021-08-06 19:03:09,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-06 19:03:09,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-06 19:03:09,597 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-wmm/safe007_pso.opt.i[949,962] [2021-08-06 19:03:09,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 19:03:09,718 INFO L203 MainTranslator]: Completed pre-run [2021-08-06 19:03:09,776 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-wmm/safe007_pso.opt.i[949,962] [2021-08-06 19:03:09,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 19:03:09,853 INFO L208 MainTranslator]: Completed translation [2021-08-06 19:03:09,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09 WrapperNode [2021-08-06 19:03:09,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-06 19:03:09,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 19:03:09,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 19:03:09,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 19:03:09,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 19:03:09,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 19:03:09,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 19:03:09,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 19:03:09,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 19:03:09,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 19:03:09,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 19:03:09,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 19:03:09,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (1/1) ... [2021-08-06 19:03:09,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 19:03:09,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 19:03:09,950 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) [2021-08-06 19:03:09,951 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 [2021-08-06 19:03:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-06 19:03:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-06 19:03:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-06 19:03:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-06 19:03:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-06 19:03:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-06 19:03:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-06 19:03:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-06 19:03:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-06 19:03:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-06 19:03:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-06 19:03:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-06 19:03:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 19:03:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 19:03:09,986 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 19:03:10,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 19:03:10,420 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-06 19:03:10,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 07:03:10 BoogieIcfgContainer [2021-08-06 19:03:10,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 19:03:10,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 19:03:10,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 19:03:10,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 19:03:10,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 07:03:09" (1/3) ... [2021-08-06 19:03:10,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455a7463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 07:03:10, skipping insertion in model container [2021-08-06 19:03:10,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:03:09" (2/3) ... [2021-08-06 19:03:10,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455a7463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 07:03:10, skipping insertion in model container [2021-08-06 19:03:10,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 07:03:10" (3/3) ... [2021-08-06 19:03:10,430 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2021-08-06 19:03:10,438 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 19:03:10,438 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 19:03:10,439 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 19:03:10,439 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 19:03:10,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,480 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,480 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,482 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,482 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,488 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,488 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,489 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,489 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,489 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,490 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,499 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,500 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,500 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,503 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,504 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:03:10,508 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 19:03:10,557 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 19:03:10,565 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-06 19:03:10,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-06 19:03:11,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 4769 states have (on average 1.9391906059970643) internal successors, (9248), 5559 states have internal predecessors, (9248), 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) [2021-08-06 19:03:11,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-06 19:03:11,181 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:03:11,181 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:03:11,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:03:11,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:03:11,188 INFO L82 PathProgramCache]: Analyzing trace with hash -194702042, now seen corresponding path program 1 times [2021-08-06 19:03:11,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:03:11,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200853248] [2021-08-06 19:03:11,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:03:11,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:03:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:03:11,574 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:11,580 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:11,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:03:11,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:03:11,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200853248] [2021-08-06 19:03:11,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200853248] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:03:11,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:03:11,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 19:03:11,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178084993] [2021-08-06 19:03:11,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 19:03:11,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:03:11,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 19:03:11,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 19:03:11,762 INFO L87 Difference]: Start difference. First operand has 5560 states, 4769 states have (on average 1.9391906059970643) internal successors, (9248), 5559 states have internal predecessors, (9248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:03:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:03:11,963 INFO L93 Difference]: Finished difference Result 6884 states and 11696 transitions. [2021-08-06 19:03:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:03:11,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-08-06 19:03:11,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:03:12,007 INFO L225 Difference]: With dead ends: 6884 [2021-08-06 19:03:12,008 INFO L226 Difference]: Without dead ends: 3029 [2021-08-06 19:03:12,009 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 104.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:03:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2021-08-06 19:03:12,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 3029. [2021-08-06 19:03:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3029 states, 2980 states have (on average 2.0761744966442954) internal successors, (6187), 3028 states have internal predecessors, (6187), 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) [2021-08-06 19:03:12,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 6187 transitions. [2021-08-06 19:03:12,169 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 6187 transitions. Word has length 50 [2021-08-06 19:03:12,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:03:12,170 INFO L470 AbstractCegarLoop]: Abstraction has 3029 states and 6187 transitions. [2021-08-06 19:03:12,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:03:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 6187 transitions. [2021-08-06 19:03:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-06 19:03:12,181 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:03:12,184 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:03:12,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 19:03:12,189 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:03:12,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:03:12,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1830386969, now seen corresponding path program 1 times [2021-08-06 19:03:12,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:03:12,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621680679] [2021-08-06 19:03:12,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:03:12,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:03:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:03:12,343 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:12,351 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:12,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:03:12,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:03:12,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621680679] [2021-08-06 19:03:12,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621680679] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:03:12,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:03:12,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:03:12,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109155570] [2021-08-06 19:03:12,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:03:12,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:03:12,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:03:12,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:03:12,441 INFO L87 Difference]: Start difference. First operand 3029 states and 6187 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:03:12,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:03:12,588 INFO L93 Difference]: Finished difference Result 3389 states and 7321 transitions. [2021-08-06 19:03:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 19:03:12,589 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-08-06 19:03:12,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:03:12,601 INFO L225 Difference]: With dead ends: 3389 [2021-08-06 19:03:12,602 INFO L226 Difference]: Without dead ends: 2489 [2021-08-06 19:03:12,603 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 98.7ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-06 19:03:12,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2021-08-06 19:03:12,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2489. [2021-08-06 19:03:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2440 states have (on average 2.1471311475409838) internal successors, (5239), 2488 states have internal predecessors, (5239), 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) [2021-08-06 19:03:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 5239 transitions. [2021-08-06 19:03:12,670 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 5239 transitions. Word has length 52 [2021-08-06 19:03:12,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:03:12,671 INFO L470 AbstractCegarLoop]: Abstraction has 2489 states and 5239 transitions. [2021-08-06 19:03:12,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:03:12,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 5239 transitions. [2021-08-06 19:03:12,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-06 19:03:12,678 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:03:12,678 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:03:12,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 19:03:12,679 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:03:12,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:03:12,687 INFO L82 PathProgramCache]: Analyzing trace with hash -331389849, now seen corresponding path program 1 times [2021-08-06 19:03:12,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:03:12,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107995644] [2021-08-06 19:03:12,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:03:12,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:03:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:03:12,781 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:12,786 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:12,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:03:12,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:03:12,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107995644] [2021-08-06 19:03:12,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107995644] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:03:12,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:03:12,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:03:12,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43634799] [2021-08-06 19:03:12,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:03:12,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:03:12,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:03:12,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:03:12,866 INFO L87 Difference]: Start difference. First operand 2489 states and 5239 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:03:13,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:03:13,212 INFO L93 Difference]: Finished difference Result 4091 states and 9172 transitions. [2021-08-06 19:03:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-06 19:03:13,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-08-06 19:03:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:03:13,223 INFO L225 Difference]: With dead ends: 4091 [2021-08-06 19:03:13,224 INFO L226 Difference]: Without dead ends: 2147 [2021-08-06 19:03:13,224 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 279.0ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-08-06 19:03:13,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2021-08-06 19:03:13,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2147. [2021-08-06 19:03:13,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2147 states, 2104 states have (on average 2.1183460076045626) internal successors, (4457), 2146 states have internal predecessors, (4457), 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) [2021-08-06 19:03:13,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 4457 transitions. [2021-08-06 19:03:13,280 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 4457 transitions. Word has length 52 [2021-08-06 19:03:13,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:03:13,280 INFO L470 AbstractCegarLoop]: Abstraction has 2147 states and 4457 transitions. [2021-08-06 19:03:13,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:03:13,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 4457 transitions. [2021-08-06 19:03:13,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-06 19:03:13,285 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:03:13,285 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:03:13,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 19:03:13,285 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:03:13,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:03:13,286 INFO L82 PathProgramCache]: Analyzing trace with hash -753374802, now seen corresponding path program 1 times [2021-08-06 19:03:13,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:03:13,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049997488] [2021-08-06 19:03:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:03:13,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:03:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:03:13,342 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:13,344 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:03:13,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:03:13,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049997488] [2021-08-06 19:03:13,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049997488] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:03:13,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:03:13,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 19:03:13,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931971919] [2021-08-06 19:03:13,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 19:03:13,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:03:13,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 19:03:13,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 19:03:13,403 INFO L87 Difference]: Start difference. First operand 2147 states and 4457 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2021-08-06 19:03:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:03:13,542 INFO L93 Difference]: Finished difference Result 2457 states and 5271 transitions. [2021-08-06 19:03:13,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 19:03:13,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-08-06 19:03:13,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:03:13,550 INFO L225 Difference]: With dead ends: 2457 [2021-08-06 19:03:13,550 INFO L226 Difference]: Without dead ends: 1565 [2021-08-06 19:03:13,551 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 121.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 19:03:13,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2021-08-06 19:03:13,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2021-08-06 19:03:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1537 states have (on average 2.1418347430058557) internal successors, (3292), 1564 states have internal predecessors, (3292), 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) [2021-08-06 19:03:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 3292 transitions. [2021-08-06 19:03:13,601 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 3292 transitions. Word has length 55 [2021-08-06 19:03:13,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:03:13,601 INFO L470 AbstractCegarLoop]: Abstraction has 1565 states and 3292 transitions. [2021-08-06 19:03:13,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2021-08-06 19:03:13,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 3292 transitions. [2021-08-06 19:03:13,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-06 19:03:13,605 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:03:13,605 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:03:13,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 19:03:13,605 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:03:13,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:03:13,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1354213090, now seen corresponding path program 1 times [2021-08-06 19:03:13,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:03:13,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461042510] [2021-08-06 19:03:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:03:13,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:03:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:03:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:03:13,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:03:13,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461042510] [2021-08-06 19:03:13,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461042510] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:03:13,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:03:13,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 19:03:13,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335348673] [2021-08-06 19:03:13,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 19:03:13,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:03:13,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 19:03:13,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 19:03:13,702 INFO L87 Difference]: Start difference. First operand 1565 states and 3292 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2021-08-06 19:03:13,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:03:13,823 INFO L93 Difference]: Finished difference Result 1741 states and 3849 transitions. [2021-08-06 19:03:13,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:03:13,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-08-06 19:03:13,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:03:13,830 INFO L225 Difference]: With dead ends: 1741 [2021-08-06 19:03:13,830 INFO L226 Difference]: Without dead ends: 1249 [2021-08-06 19:03:13,831 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 79.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:03:13,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2021-08-06 19:03:13,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2021-08-06 19:03:13,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1229 states have (on average 2.1855166802278276) internal successors, (2686), 1248 states have internal predecessors, (2686), 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) [2021-08-06 19:03:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 2686 transitions. [2021-08-06 19:03:13,876 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 2686 transitions. Word has length 55 [2021-08-06 19:03:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:03:13,876 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 2686 transitions. [2021-08-06 19:03:13,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2021-08-06 19:03:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 2686 transitions. [2021-08-06 19:03:13,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-06 19:03:13,880 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:03:13,880 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:03:13,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 19:03:13,880 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:03:13,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:03:13,881 INFO L82 PathProgramCache]: Analyzing trace with hash -462837311, now seen corresponding path program 1 times [2021-08-06 19:03:13,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:03:13,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714138325] [2021-08-06 19:03:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:03:13,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:03:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:03:13,977 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:13,980 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 81.3 percent of original size [2021-08-06 19:03:14,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:03:14,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:03:14,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714138325] [2021-08-06 19:03:14,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714138325] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:03:14,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:03:14,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 19:03:14,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146018632] [2021-08-06 19:03:14,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 19:03:14,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:03:14,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 19:03:14,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 19:03:14,058 INFO L87 Difference]: Start difference. First operand 1249 states and 2686 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2021-08-06 19:03:14,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:03:14,196 INFO L93 Difference]: Finished difference Result 1609 states and 3554 transitions. [2021-08-06 19:03:14,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 19:03:14,197 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) Word has length 57 [2021-08-06 19:03:14,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:03:14,200 INFO L225 Difference]: With dead ends: 1609 [2021-08-06 19:03:14,200 INFO L226 Difference]: Without dead ends: 679 [2021-08-06 19:03:14,201 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 137.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 19:03:14,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2021-08-06 19:03:14,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2021-08-06 19:03:14,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 659 states have (on average 2.254931714719272) internal successors, (1486), 678 states have internal predecessors, (1486), 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) [2021-08-06 19:03:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1486 transitions. [2021-08-06 19:03:14,217 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1486 transitions. Word has length 57 [2021-08-06 19:03:14,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:03:14,218 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 1486 transitions. [2021-08-06 19:03:14,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 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) [2021-08-06 19:03:14,218 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1486 transitions. [2021-08-06 19:03:14,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-06 19:03:14,220 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:03:14,220 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:03:14,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 19:03:14,220 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 19:03:14,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:03:14,221 INFO L82 PathProgramCache]: Analyzing trace with hash -6880831, now seen corresponding path program 1 times [2021-08-06 19:03:14,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:03:14,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822201756] [2021-08-06 19:03:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:03:14,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:03:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:03:14,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:03:14,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:03:14,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822201756] [2021-08-06 19:03:14,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822201756] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:03:14,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:03:14,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:03:14,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264664624] [2021-08-06 19:03:14,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:03:14,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:03:14,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:03:14,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:03:14,339 INFO L87 Difference]: Start difference. First operand 679 states and 1486 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:03:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:03:14,446 INFO L93 Difference]: Finished difference Result 559 states and 1220 transitions. [2021-08-06 19:03:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 19:03:14,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-08-06 19:03:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:03:14,447 INFO L225 Difference]: With dead ends: 559 [2021-08-06 19:03:14,447 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 19:03:14,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 110.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-06 19:03:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 19:03:14,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 19:03:14,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:03:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 19:03:14,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-08-06 19:03:14,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:03:14,448 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 19:03:14,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:03:14,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 19:03:14,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 19:03:14,451 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 19:03:14,451 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 19:03:14,454 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 19:03:14,454 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 19:03:14,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 19:03:14,457 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 19:03:14,458 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 19:03:14,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 07:03:14 BasicIcfg [2021-08-06 19:03:14,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 19:03:14,460 INFO L168 Benchmark]: Toolchain (without parser) took 5045.41 ms. Allocated memory was 186.6 MB in the beginning and 340.8 MB in the end (delta: 154.1 MB). Free memory was 150.8 MB in the beginning and 185.4 MB in the end (delta: -34.6 MB). Peak memory consumption was 120.1 MB. Max. memory is 8.0 GB. [2021-08-06 19:03:14,460 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 186.6 MB. Free memory is still 168.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 19:03:14,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.98 ms. Allocated memory is still 186.6 MB. Free memory was 150.7 MB in the beginning and 162.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. [2021-08-06 19:03:14,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.18 ms. Allocated memory is still 186.6 MB. Free memory was 162.4 MB in the beginning and 160.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 19:03:14,464 INFO L168 Benchmark]: Boogie Preprocessor took 19.56 ms. Allocated memory is still 186.6 MB. Free memory was 160.3 MB in the beginning and 159.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 19:03:14,464 INFO L168 Benchmark]: RCFGBuilder took 496.85 ms. Allocated memory is still 186.6 MB. Free memory was 158.8 MB in the beginning and 135.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-06 19:03:14,465 INFO L168 Benchmark]: TraceAbstraction took 4034.45 ms. Allocated memory was 186.6 MB in the beginning and 340.8 MB in the end (delta: 154.1 MB). Free memory was 135.1 MB in the beginning and 185.4 MB in the end (delta: -50.3 MB). Peak memory consumption was 104.3 MB. Max. memory is 8.0 GB. [2021-08-06 19:03:14,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 186.6 MB. Free memory is still 168.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 438.98 ms. Allocated memory is still 186.6 MB. Free memory was 150.7 MB in the beginning and 162.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.18 ms. Allocated memory is still 186.6 MB. Free memory was 162.4 MB in the beginning and 160.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.56 ms. Allocated memory is still 186.6 MB. Free memory was 160.3 MB in the beginning and 159.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 496.85 ms. Allocated memory is still 186.6 MB. Free memory was 158.8 MB in the beginning and 135.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4034.45 ms. Allocated memory was 186.6 MB in the beginning and 340.8 MB in the end (delta: 154.1 MB). Free memory was 135.1 MB in the beginning and 185.4 MB in the end (delta: -50.3 MB). Peak memory consumption was 104.3 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: 18126, positive: 17600, positive conditional: 17600, positive unconditional: 0, negative: 526, negative conditional: 526, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18050, positive: 17600, positive conditional: 0, positive unconditional: 17600, negative: 450, negative conditional: 0, negative unconditional: 450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 668, positive: 654, positive conditional: 0, positive unconditional: 654, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 668, positive: 650, positive conditional: 0, positive unconditional: 650, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18050, positive: 16946, positive conditional: 0, positive unconditional: 16946, negative: 436, negative conditional: 0, negative unconditional: 436, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 654, Positive conditional cache size: 0, Positive unconditional cache size: 654, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Independence queries for same thread: 76 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3902.1ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 75.5ms, AutomataDifference: 1322.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 568.6ms, PartialOrderReductionTime: 536.3ms, HoareTripleCheckerStatistics: 702 SDtfs, 982 SDslu, 2212 SDs, 0 SdLazy, 196 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 183.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 931.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 380.8ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.2ms SsaConstructionTime, 218.7ms SatisfiabilityAnalysisTime, 1076.3ms InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 372 ConstructedInterpolants, 0 QuantifiedInterpolants, 1482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-06 19:03:14,506 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...