/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/join_correct.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 15:22:55,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 15:22:55,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 15:22:55,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 15:22:56,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 15:22:56,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 15:22:56,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 15:22:56,040 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.epf [2021-06-14 15:22:56,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 15:22:56,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 15:22:56,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 15:22:56,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 15:22:56,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 15:22:56,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 15:22:56,075 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 15:22:56,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 15:22:56,075 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 15:22:56,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 15:22:56,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 15:22:56,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 15:22:56,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 15:22:56,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 15:22:56,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 15:22:56,076 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 15:22:56,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 15:22:56,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 15:22:56,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 15:22:56,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 15:22:56,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 15:22:56,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 15:22:56,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 15:22:56,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 15:22:56,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 15:22:56,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 15:22:56,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 15:22:56,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 15:22:56,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 15:22:56,078 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 15:22:56,078 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 15:22:56,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 15:22:56,078 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-14 15:22:56,078 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 15:22:56,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 15:22:56,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 15:22:56,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 15:22:56,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-14 15:22:56,391 INFO L275 PluginConnector]: CDTParser initialized [2021-06-14 15:22:56,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/join_correct.c [2021-06-14 15:22:56,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c96283d1/4599a49f787f465d9b151f1da03e384d/FLAGe0fe102e9 [2021-06-14 15:22:56,878 INFO L306 CDTParser]: Found 1 translation units. [2021-06-14 15:22:56,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/join_correct.c [2021-06-14 15:22:56,879 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-14 15:22:56,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c96283d1/4599a49f787f465d9b151f1da03e384d/FLAGe0fe102e9 [2021-06-14 15:22:56,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c96283d1/4599a49f787f465d9b151f1da03e384d [2021-06-14 15:22:56,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 15:22:56,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-14 15:22:56,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-14 15:22:56,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-14 15:22:56,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-14 15:22:56,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 03:22:56" (1/1) ... [2021-06-14 15:22:56,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4063f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:56, skipping insertion in model container [2021-06-14 15:22:56,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 03:22:56" (1/1) ... [2021-06-14 15:22:56,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-14 15:22:56,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-14 15:22:57,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-14 15:22:57,131 INFO L203 MainTranslator]: Completed pre-run [2021-06-14 15:22:57,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-14 15:22:57,159 INFO L208 MainTranslator]: Completed translation [2021-06-14 15:22:57,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57 WrapperNode [2021-06-14 15:22:57,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-14 15:22:57,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 15:22:57,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 15:22:57,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 15:22:57,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... [2021-06-14 15:22:57,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... [2021-06-14 15:22:57,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 15:22:57,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 15:22:57,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 15:22:57,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 15:22:57,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... [2021-06-14 15:22:57,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... [2021-06-14 15:22:57,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... [2021-06-14 15:22:57,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... [2021-06-14 15:22:57,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... [2021-06-14 15:22:57,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... [2021-06-14 15:22:57,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... [2021-06-14 15:22:57,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 15:22:57,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 15:22:57,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 15:22:57,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 15:22:57,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 15:22:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-06-14 15:22:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-14 15:22:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2021-06-14 15:22:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2021-06-14 15:22:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 15:22:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 15:22:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-14 15:22:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-14 15:22:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-14 15:22:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-14 15:22:57,293 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 15:22:57,516 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 15:22:57,516 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-06-14 15:22:57,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:22:57 BoogieIcfgContainer [2021-06-14 15:22:57,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 15:22:57,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 15:22:57,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 15:22:57,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 15:22:57,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 03:22:56" (1/3) ... [2021-06-14 15:22:57,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0a6c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 03:22:57, skipping insertion in model container [2021-06-14 15:22:57,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 03:22:57" (2/3) ... [2021-06-14 15:22:57,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0a6c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 03:22:57, skipping insertion in model container [2021-06-14 15:22:57,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:22:57" (3/3) ... [2021-06-14 15:22:57,523 INFO L111 eAbstractionObserver]: Analyzing ICFG join_correct.c [2021-06-14 15:22:57,544 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 15:22:57,545 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 15:22:57,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 15:22:57,545 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 15:22:57,579 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,580 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,580 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,580 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,580 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,580 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,581 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,581 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,581 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,581 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,581 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,581 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,581 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,581 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,582 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,582 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,583 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,583 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,584 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,584 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:57,605 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-14 15:22:57,639 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 15:22:57,680 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 15:22:57,680 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 15:22:57,680 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 15:22:57,681 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 15:22:57,681 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 15:22:57,681 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 15:22:57,681 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 15:22:57,681 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 15:22:57,720 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 15:22:57,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 15:22:57,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1974813216, now seen corresponding path program 1 times [2021-06-14 15:22:57,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 15:22:57,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290284673] [2021-06-14 15:22:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 15:22:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:22:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 15:22:57,847 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 15:22:57,847 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290284673] [2021-06-14 15:22:57,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290284673] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 15:22:57,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 15:22:57,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-14 15:22:57,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306713450] [2021-06-14 15:22:57,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-14 15:22:57,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 15:22:57,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-14 15:22:57,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-14 15:22:57,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:57,866 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 15:22:57,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-06-14 15:22:57,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:57,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:57,882 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 15:22:57,882 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 15:22:57,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 15:22:57,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1845730497, now seen corresponding path program 1 times [2021-06-14 15:22:57,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 15:22:57,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99582939] [2021-06-14 15:22:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 15:22:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:22:57,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:22:57,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 15:22:57,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99582939] [2021-06-14 15:22:57,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99582939] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 15:22:57,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167679031] [2021-06-14 15:22:57,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 15:22:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:22:58,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-14 15:22:58,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 15:22:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:22:58,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167679031] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 15:22:58,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 15:22:58,161 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-14 15:22:58,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641256811] [2021-06-14 15:22:58,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-14 15:22:58,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 15:22:58,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-14 15:22:58,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-14 15:22:58,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,164 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 15:22:58,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2021-06-14 15:22:58,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 15:22:58,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 15:22:58,431 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 15:22:58,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 15:22:58,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1623463023, now seen corresponding path program 1 times [2021-06-14 15:22:58,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 15:22:58,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511173461] [2021-06-14 15:22:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 15:22:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-14 15:22:58,448 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-14 15:22:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-14 15:22:58,466 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-14 15:22:58,488 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-14 15:22:58,489 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-14 15:22:58,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-14 15:22:58,499 WARN L243 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-14 15:22:58,499 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-14 15:22:58,509 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,510 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,515 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,515 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,515 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,515 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,515 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,515 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,515 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,516 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,516 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,516 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,516 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,516 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,516 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,516 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,516 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,517 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,517 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,517 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,517 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,517 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,517 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,517 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,517 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,517 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,518 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,518 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,518 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,518 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,518 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,519 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,519 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,519 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,519 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,520 WARN L313 ript$VariableManager]: TermVariabe |incrementThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,521 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,521 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,521 WARN L313 ript$VariableManager]: TermVariabe incrementThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,522 WARN L313 ript$VariableManager]: TermVariabe |incrementThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:22:58,530 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-14 15:22:58,530 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 15:22:58,535 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 15:22:58,535 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 15:22:58,535 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 15:22:58,536 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 15:22:58,536 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 15:22:58,536 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 15:22:58,536 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 15:22:58,536 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 15:22:58,564 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 15:22:58,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 15:22:58,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1760153436, now seen corresponding path program 1 times [2021-06-14 15:22:58,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 15:22:58,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931965642] [2021-06-14 15:22:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 15:22:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:22:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 15:22:58,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 15:22:58,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931965642] [2021-06-14 15:22:58,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931965642] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 15:22:58,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 15:22:58,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-14 15:22:58,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355432523] [2021-06-14 15:22:58,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-14 15:22:58,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 15:22:58,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-14 15:22:58,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-14 15:22:58,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,605 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 15:22:58,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-06-14 15:22:58,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-14 15:22:58,618 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 15:22:58,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 15:22:58,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1889236155, now seen corresponding path program 1 times [2021-06-14 15:22:58,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 15:22:58,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579296795] [2021-06-14 15:22:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 15:22:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:22:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:22:58,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 15:22:58,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579296795] [2021-06-14 15:22:58,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579296795] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 15:22:58,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845703078] [2021-06-14 15:22:58,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 15:22:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:22:58,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-14 15:22:58,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 15:22:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:22:58,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845703078] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 15:22:58,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 15:22:58,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-14 15:22:58,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560835728] [2021-06-14 15:22:58,824 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-14 15:22:58,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 15:22:58,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-14 15:22:58,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-14 15:22:58,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,824 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 15:22:58,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2021-06-14 15:22:58,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 15:22:59,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 15:22:59,156 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 15:22:59,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 15:22:59,173 INFO L82 PathProgramCache]: Analyzing trace with hash 452330562, now seen corresponding path program 1 times [2021-06-14 15:22:59,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 15:22:59,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490920970] [2021-06-14 15:22:59,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 15:22:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:22:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:22:59,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 15:22:59,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490920970] [2021-06-14 15:22:59,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490920970] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 15:22:59,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77740086] [2021-06-14 15:22:59,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 15:22:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:22:59,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-14 15:22:59,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 15:22:59,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 15:22:59,496 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 15:22:59,503 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 15:22:59,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 15:22:59,506 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-14 15:22:59,512 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 15:22:59,515 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-14 15:22:59,516 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:22 [2021-06-14 15:22:59,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-14 15:22:59,548 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 15:22:59,553 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 15:22:59,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-14 15:22:59,558 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-14 15:22:59,561 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 15:22:59,561 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-14 15:22:59,562 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2021-06-14 15:22:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:22:59,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77740086] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 15:22:59,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 15:22:59,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-06-14 15:22:59,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715729829] [2021-06-14 15:22:59,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-14 15:22:59,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 15:22:59,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-14 15:22:59,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-14 15:22:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:59,566 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 15:22:59,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 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) [2021-06-14 15:22:59,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:59,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 15:22:59,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:22:59,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 15:22:59,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 15:23:00,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-14 15:23:00,037 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 15:23:00,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 15:23:00,037 INFO L82 PathProgramCache]: Analyzing trace with hash 480959713, now seen corresponding path program 1 times [2021-06-14 15:23:00,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 15:23:00,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708236057] [2021-06-14 15:23:00,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 15:23:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:23:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:23:00,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 15:23:00,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708236057] [2021-06-14 15:23:00,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708236057] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 15:23:00,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833092978] [2021-06-14 15:23:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 15:23:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:23:00,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-14 15:23:00,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 15:23:00,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-06-14 15:23:00,521 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 15:23:00,528 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 15:23:00,530 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-14 15:23:00,530 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:33 [2021-06-14 15:23:00,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 15:23:00,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2021-06-14 15:23:00,677 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 15:23:00,690 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 15:23:00,693 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-14 15:23:00,693 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:36 [2021-06-14 15:23:00,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 15:23:00,853 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 15:23:00,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 17 [2021-06-14 15:23:00,855 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 15:23:00,859 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 15:23:00,861 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-14 15:23:00,861 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:11 [2021-06-14 15:23:00,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:23:00,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833092978] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 15:23:00,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 15:23:00,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-06-14 15:23:00,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955605665] [2021-06-14 15:23:00,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-14 15:23:00,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 15:23:00,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-14 15:23:00,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-06-14 15:23:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:23:00,904 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 15:23:00,905 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 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) [2021-06-14 15:23:00,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:23:00,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 15:23:00,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 15:23:00,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:23:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:23:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 15:23:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 15:23:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 15:23:01,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 15:23:01,539 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 15:23:01,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 15:23:01,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1633936758, now seen corresponding path program 1 times [2021-06-14 15:23:01,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 15:23:01,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963082866] [2021-06-14 15:23:01,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 15:23:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:23:01,585 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:23:01,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 15:23:01,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963082866] [2021-06-14 15:23:01,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963082866] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 15:23:01,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138206631] [2021-06-14 15:23:01,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 15:23:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 15:23:01,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-14 15:23:01,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 15:23:01,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 15:23:01,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138206631] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 15:23:01,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-14 15:23:01,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-06-14 15:23:01,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049824600] [2021-06-14 15:23:01,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-14 15:23:01,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 15:23:01,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-14 15:23:01,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-14 15:23:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:23:01,698 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 15:23:01,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2021-06-14 15:23:01,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:23:01,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 15:23:01,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 15:23:01,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 15:23:01,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:23:01,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 15:23:01,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 15:23:01,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 15:23:01,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 15:23:01,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 15:23:02,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 15:23:02,061 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2021-06-14 15:23:02,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 03:23:02 BasicIcfg [2021-06-14 15:23:02,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-14 15:23:02,063 INFO L168 Benchmark]: Toolchain (without parser) took 5126.37 ms. Allocated memory was 219.2 MB in the beginning and 300.9 MB in the end (delta: 81.8 MB). Free memory was 181.5 MB in the beginning and 185.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 78.2 MB. Max. memory is 8.0 GB. [2021-06-14 15:23:02,063 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 219.2 MB. Free memory is still 200.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 15:23:02,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.64 ms. Allocated memory is still 219.2 MB. Free memory was 181.3 MB in the beginning and 201.8 MB in the end (delta: -20.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-06-14 15:23:02,064 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.78 ms. Allocated memory is still 219.2 MB. Free memory was 201.8 MB in the beginning and 200.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 15:23:02,064 INFO L168 Benchmark]: Boogie Preprocessor took 27.83 ms. Allocated memory is still 219.2 MB. Free memory was 200.2 MB in the beginning and 198.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-14 15:23:02,064 INFO L168 Benchmark]: RCFGBuilder took 298.36 ms. Allocated memory is still 219.2 MB. Free memory was 198.6 MB in the beginning and 183.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-06-14 15:23:02,064 INFO L168 Benchmark]: TraceAbstraction took 4543.74 ms. Allocated memory was 219.2 MB in the beginning and 300.9 MB in the end (delta: 81.8 MB). Free memory was 183.4 MB in the beginning and 185.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 81.1 MB. Max. memory is 8.0 GB. [2021-06-14 15:23:02,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 219.2 MB. Free memory is still 200.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 222.64 ms. Allocated memory is still 219.2 MB. Free memory was 181.3 MB in the beginning and 201.8 MB in the end (delta: -20.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.78 ms. Allocated memory is still 219.2 MB. Free memory was 201.8 MB in the beginning and 200.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.83 ms. Allocated memory is still 219.2 MB. Free memory was 200.2 MB in the beginning and 198.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 298.36 ms. Allocated memory is still 219.2 MB. Free memory was 198.6 MB in the beginning and 183.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4543.74 ms. Allocated memory was 219.2 MB in the beginning and 300.9 MB in the end (delta: 81.8 MB). Free memory was 183.4 MB in the beginning and 185.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 81.1 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: 104, positive: 86, positive conditional: 32, positive unconditional: 54, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 86, positive: 86, positive conditional: 32, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 86, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 86, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 54, unknown conditional: 0, unknown unconditional: 54] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 25, Number of persistent set computation: 200, Number of trivial persistent sets: 200, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 104, positive: 86, positive conditional: 32, positive unconditional: 54, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 86, positive: 86, positive conditional: 32, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 86, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 86, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 54, unknown conditional: 0, unknown unconditional: 54] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 18 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1308, positive: 1229, positive conditional: 462, positive unconditional: 767, negative: 79, negative conditional: 68, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1242, positive: 1229, positive conditional: 462, positive unconditional: 767, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1242, positive: 1227, positive conditional: 0, positive unconditional: 1227, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 360, positive: 355, positive conditional: 0, positive unconditional: 355, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 360, positive: 355, positive conditional: 0, positive unconditional: 355, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1242, positive: 872, positive conditional: 0, positive unconditional: 872, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 360, unknown conditional: 0, unknown unconditional: 360] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8 ], Maximal queried relation: 4, Independence queries for same thread: 66 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 133, Number of persistent set computation: 1005, Number of trivial persistent sets: 933, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1308, positive: 1229, positive conditional: 462, positive unconditional: 767, negative: 79, negative conditional: 68, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1242, positive: 1229, positive conditional: 462, positive unconditional: 767, negative: 13, negative conditional: 2, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1242, positive: 1227, positive conditional: 0, positive unconditional: 1227, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 360, positive: 355, positive conditional: 0, positive unconditional: 355, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 360, positive: 355, positive conditional: 0, positive unconditional: 355, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1242, positive: 872, positive conditional: 0, positive unconditional: 872, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 360, unknown conditional: 0, unknown unconditional: 360] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8, SemanticConditionEliminator.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 33, negative conditional: 3, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 47, negative conditional: 4, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 32, negative conditional: 2, negative unconditional: 30, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 356, Positive conditional cache size: 1, Positive unconditional cache size: 355, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 8 ], Maximal queried relation: 4, Independence queries for same thread: 66 - PositiveResult [Line: 33]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 846.0ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.9ms, PartialOrderReductionTime: 97.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, 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: 24.4ms SsaConstructionTime, 79.2ms SatisfiabilityAnalysisTime, 206.7ms InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 125 SizeOfPredicates, 2 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/3 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 2 thread instances CFG has 4 procedures, 46 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3527.7ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.3ms, PartialOrderReductionTime: 956.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 48, 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: 45.5ms SsaConstructionTime, 134.3ms SatisfiabilityAnalysisTime, 1320.2ms InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 307 ConstructedInterpolants, 12 QuantifiedInterpolants, 2646 SizeOfPredicates, 30 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 31/91 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! Received shutdown request...