/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-varabs.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-11 07:46:19,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-11 07:46:19,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-11 07:46:19,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-11 07:46:19,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-11 07:46:19,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-11 07:46:19,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-11 07:46:19,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-11 07:46:19,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-11 07:46:19,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-11 07:46:19,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-11 07:46:19,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-11 07:46:19,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-11 07:46:19,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-11 07:46:19,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-11 07:46:19,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-11 07:46:19,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-11 07:46:19,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-11 07:46:19,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-11 07:46:19,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-11 07:46:19,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-11 07:46:19,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-11 07:46:19,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-11 07:46:19,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-11 07:46:19,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-11 07:46:19,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-11 07:46:19,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-11 07:46:19,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-11 07:46:19,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-11 07:46:19,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-11 07:46:19,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-11 07:46:19,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-11 07:46:19,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-11 07:46:19,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-11 07:46:19,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-11 07:46:19,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-11 07:46:19,362 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-varabs.epf [2022-02-11 07:46:19,386 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-11 07:46:19,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-11 07:46:19,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-11 07:46:19,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-11 07:46:19,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-11 07:46:19,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-11 07:46:19,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-11 07:46:19,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-11 07:46:19,389 INFO L138 SettingsManager]: * Use SBE=true [2022-02-11 07:46:19,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-11 07:46:19,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-11 07:46:19,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-11 07:46:19,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-11 07:46:19,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-11 07:46:19,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-11 07:46:19,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-11 07:46:19,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 07:46:19,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-11 07:46:19,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-11 07:46:19,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-11 07:46:19,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-11 07:46:19,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-11 07:46:19,392 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-11 07:46:19,392 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-02-11 07:46:19,393 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-11 07:46:19,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-11 07:46:19,393 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-11 07:46:19,393 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-11 07:46:19,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-11 07:46:19,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-11 07:46:19,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-11 07:46:19,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-11 07:46:19,571 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-11 07:46:19,571 INFO L275 PluginConnector]: CDTParser initialized [2022-02-11 07:46:19,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/gcd-2.i [2022-02-11 07:46:19,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee55630ee/8ee1ed6aa24d482db312a062c6bfecd8/FLAG2875ace37 [2022-02-11 07:46:19,998 INFO L306 CDTParser]: Found 1 translation units. [2022-02-11 07:46:19,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i [2022-02-11 07:46:20,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee55630ee/8ee1ed6aa24d482db312a062c6bfecd8/FLAG2875ace37 [2022-02-11 07:46:20,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee55630ee/8ee1ed6aa24d482db312a062c6bfecd8 [2022-02-11 07:46:20,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-11 07:46:20,366 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-11 07:46:20,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-11 07:46:20,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-11 07:46:20,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-11 07:46:20,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8946f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20, skipping insertion in model container [2022-02-11 07:46:20,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-11 07:46:20,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-11 07:46:20,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951] [2022-02-11 07:46:20,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 07:46:20,710 INFO L203 MainTranslator]: Completed pre-run [2022-02-11 07:46:20,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/gcd-2.i[938,951] [2022-02-11 07:46:20,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 07:46:20,785 INFO L208 MainTranslator]: Completed translation [2022-02-11 07:46:20,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20 WrapperNode [2022-02-11 07:46:20,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-11 07:46:20,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-11 07:46:20,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-11 07:46:20,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-11 07:46:20,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,838 INFO L137 Inliner]: procedures = 174, calls = 30, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 122 [2022-02-11 07:46:20,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-11 07:46:20,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-11 07:46:20,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-11 07:46:20,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-11 07:46:20,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-11 07:46:20,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-11 07:46:20,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-11 07:46:20,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-11 07:46:20,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (1/1) ... [2022-02-11 07:46:20,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 07:46:20,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:46:20,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-11 07:46:20,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-11 07:46:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-11 07:46:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-11 07:46:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-11 07:46:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-11 07:46:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-11 07:46:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2022-02-11 07:46:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2022-02-11 07:46:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2022-02-11 07:46:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2022-02-11 07:46:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-11 07:46:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-11 07:46:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-11 07:46:20,929 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-11 07:46:21,006 INFO L234 CfgBuilder]: Building ICFG [2022-02-11 07:46:21,007 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-11 07:46:21,209 INFO L275 CfgBuilder]: Performing block encoding [2022-02-11 07:46:21,231 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-11 07:46:21,232 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-11 07:46:21,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 07:46:21 BoogieIcfgContainer [2022-02-11 07:46:21,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-11 07:46:21,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-11 07:46:21,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-11 07:46:21,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-11 07:46:21,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.02 07:46:20" (1/3) ... [2022-02-11 07:46:21,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d12cf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 07:46:21, skipping insertion in model container [2022-02-11 07:46:21,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 07:46:20" (2/3) ... [2022-02-11 07:46:21,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d12cf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 07:46:21, skipping insertion in model container [2022-02-11 07:46:21,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 07:46:21" (3/3) ... [2022-02-11 07:46:21,244 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2022-02-11 07:46:21,248 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-11 07:46:21,248 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-11 07:46:21,248 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-02-11 07:46:21,248 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-11 07:46:21,274 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,274 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,274 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,274 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,275 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,275 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,275 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,275 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,275 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,275 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,276 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,276 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,276 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,276 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,277 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,277 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,277 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,277 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,277 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,277 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,277 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,277 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,278 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,278 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,280 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,281 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,281 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,281 WARN L322 ript$VariableManager]: TermVariable |dec_aThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,284 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,284 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,284 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,284 WARN L322 ript$VariableManager]: TermVariable |dec_bThread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 07:46:21,286 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-11 07:46:21,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 07:46:21,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:46:21,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 07:46:21,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-11 07:46:21,376 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 07:46:21,385 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 07:46:21,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-11 07:46:21,589 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-11 07:46:21,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:46:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash 147863799, now seen corresponding path program 1 times [2022-02-11 07:46:21,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:46:21,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969609817] [2022-02-11 07:46:21,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:46:21,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:46:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:46:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:46:21,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:46:21,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969609817] [2022-02-11 07:46:21,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969609817] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 07:46:21,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 07:46:21,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 07:46:21,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289885731] [2022-02-11 07:46:21,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 07:46:21,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 07:46:21,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:46:21,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 07:46:21,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 07:46:21,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:21,804 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:46:21,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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) [2022-02-11 07:46:21,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:21,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:21,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: ResultService,SelfDestructingSolverStorable0 [2022-02-11 07:46:21,848 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-11 07:46:21,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:46:21,851 INFO L85 PathProgramCache]: Analyzing trace with hash 700974173, now seen corresponding path program 1 times [2022-02-11 07:46:21,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:46:21,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172243680] [2022-02-11 07:46:21,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:46:21,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:46:21,903 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-11 07:46:21,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145740164] [2022-02-11 07:46:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:46:21,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:46:21,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:46:21,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 07:46:21,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-11 07:46:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:46:22,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 26 conjunts are in the unsatisfiable core [2022-02-11 07:46:22,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 07:46:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:46:22,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-11 07:46:22,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:46:22,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172243680] [2022-02-11 07:46:22,669 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-11 07:46:22,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145740164] [2022-02-11 07:46:22,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145740164] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 07:46:22,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 07:46:22,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-11 07:46:22,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932093427] [2022-02-11 07:46:22,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 07:46:22,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-11 07:46:22,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:46:22,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-11 07:46:22,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-02-11 07:46:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:22,673 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:46:22,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 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) [2022-02-11 07:46:22,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:22,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:23,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-11 07:46:23,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-11 07:46:23,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1,ResultService [2022-02-11 07:46:23,355 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-11 07:46:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:46:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash 155644565, now seen corresponding path program 1 times [2022-02-11 07:46:23,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:46:23,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260344153] [2022-02-11 07:46:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:46:23,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:46:23,403 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-11 07:46:23,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947727165] [2022-02-11 07:46:23,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:46:23,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:46:23,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:46:23,420 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 07:46:23,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-11 07:46:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:46:23,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-11 07:46:23,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 07:46:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:46:23,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-11 07:46:23,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:46:23,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260344153] [2022-02-11 07:46:23,925 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-11 07:46:23,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947727165] [2022-02-11 07:46:23,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947727165] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 07:46:23,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 07:46:23,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-11 07:46:23,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989063590] [2022-02-11 07:46:23,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 07:46:23,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-11 07:46:23,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:46:23,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-11 07:46:23,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-02-11 07:46:23,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:23,928 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:46:23,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 16 states have internal predecessors, (111), 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) [2022-02-11 07:46:23,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:23,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-11 07:46:23,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-11 07:46:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-11 07:46:24,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-11 07:46:24,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,ResultService,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:46:24,896 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-11 07:46:24,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:46:24,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1834907792, now seen corresponding path program 1 times [2022-02-11 07:46:24,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:46:24,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151641926] [2022-02-11 07:46:24,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:46:24,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:46:24,915 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-11 07:46:24,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633287126] [2022-02-11 07:46:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:46:24,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:46:24,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:46:24,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 07:46:24,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-11 07:46:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:46:25,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-11 07:46:25,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 07:46:26,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:46:26,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-11 07:46:26,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:46:26,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151641926] [2022-02-11 07:46:26,001 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-11 07:46:26,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633287126] [2022-02-11 07:46:26,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633287126] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 07:46:26,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 07:46:26,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-11 07:46:26,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045684126] [2022-02-11 07:46:26,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 07:46:26,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-11 07:46:26,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:46:26,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-11 07:46:26,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2022-02-11 07:46:26,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:26,004 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:46:26,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.318181818181818) internal successors, (117), 22 states have internal predecessors, (117), 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) [2022-02-11 07:46:26,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:26,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-11 07:46:26,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-11 07:46:26,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-11 07:46:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-11 07:46:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-11 07:46:27,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-11 07:46:27,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,ResultService,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:46:27,604 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-11 07:46:27,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:46:27,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1002552133, now seen corresponding path program 1 times [2022-02-11 07:46:27,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:46:27,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668496909] [2022-02-11 07:46:27,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:46:27,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:46:27,625 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-11 07:46:27,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811559468] [2022-02-11 07:46:27,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:46:27,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:46:27,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:46:27,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 07:46:27,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-11 07:46:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:46:27,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 36 conjunts are in the unsatisfiable core [2022-02-11 07:46:27,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 07:46:28,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:46:28,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 07:46:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:46:59,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:46:59,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668496909] [2022-02-11 07:46:59,065 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-11 07:46:59,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811559468] [2022-02-11 07:46:59,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811559468] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 07:46:59,065 INFO L191 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-02-11 07:46:59,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17] total 33 [2022-02-11 07:46:59,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377640684] [2022-02-11 07:46:59,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-02-11 07:46:59,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-11 07:46:59,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:46:59,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-11 07:46:59,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=958, Unknown=6, NotChecked=0, Total=1056 [2022-02-11 07:46:59,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:59,068 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:46:59,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.606060606060606) internal successors, (185), 33 states have internal predecessors, (185), 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) [2022-02-11 07:46:59,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:46:59,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-11 07:46:59,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-11 07:46:59,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-11 07:46:59,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:47:03,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-02-11 07:47:08,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-02-11 07:48:00,630 WARN L228 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 114 DAG size of output: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-11 07:48:02,689 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (mod |c_ULTIMATE.start_check_gcd_#in~gcd#1| 4294967296))) (let ((.cse8 (* 4294967295 |c_ULTIMATE.start_check_gcd_#in~gcd#1|)) (.cse9 (* 4294967295 .cse7)) (.cse11 (mod |c_ULTIMATE.start_check_gcd_~a_in#1| 4294967296)) (.cse5 (mod c_~a~0 4294967296)) (.cse3 (< 0 (mod |c_ULTIMATE.start_main_~b_in~0#1| 4294967296))) (.cse10 (mod |c_ULTIMATE.start_main_#t~ret12#1| 4294967296)) (.cse2 (mod |c_ULTIMATE.start_main_~a_in~0#1| 4294967296)) (.cse12 (mod |c_ULTIMATE.start_check_gcd_~gcd#1| 4294967296)) (.cse1 (mod c_~b~0 4294967296)) (.cse6 (mod |c_ULTIMATE.start_start_#res#1| 4294967296))) (and (let ((.cse0 (< .cse1 .cse2))) (or (and (not .cse0) (= |c_ULTIMATE.start_main_~a_in~0#1| c_~a~0)) (and (= (+ |c_ULTIMATE.start_main_~a_in~0#1| (* (- 1) c_~b~0)) c_~a~0) .cse0))) .cse3 (or (let ((.cse4 (* 4294967295 .cse1))) (and (not (= (mod (+ .cse4 c_~a~0) 4294967296) 0)) (or (not (= (mod (+ (* 4294967295 c_~b~0) .cse4 c_~a~0) 4294967296) 0)) (not (< .cse1 .cse5))))) (= (mod (mod .cse2 .cse1) 4294967296) 0)) (< .cse6 .cse2) (not (= .cse2 .cse1)) (< .cse7 (mod |c_ULTIMATE.start_check_gcd_#in~a_in#1| 4294967296)) (= (mod (+ .cse8 |c_ULTIMATE.start_check_gcd_~a_in#1| .cse9) 4294967296) 0) (= (mod (+ .cse8 |c_ULTIMATE.start_check_gcd_#in~a_in#1| .cse9) 4294967296) 0) (< 0 (mod |c_ULTIMATE.start_start_~b_in#1| 4294967296)) (= (mod (+ |c_ULTIMATE.start_main_~a_in~0#1| (* .cse10 4294967295) (* 4294967295 |c_ULTIMATE.start_main_#t~ret12#1|)) 4294967296) 0) (< .cse7 .cse11) (< .cse12 .cse11) (= (mod (+ |c_ULTIMATE.start_main_~a_in~0#1| (* .cse5 4294967295) (* 4294967295 c_~a~0)) 4294967296) 0) (< .cse5 .cse2) (or (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 1) .cse3) (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (not .cse3))) (= |c_ULTIMATE.start_main_~a_in~0#1| |c_ULTIMATE.start_start_#in~a_in#1|) (< .cse10 .cse2) (= |c_ULTIMATE.start_main_~a_in~0#1| |c_ULTIMATE.start_start_~a_in#1|) (= (mod (+ (* .cse12 4294967295) (* 4294967295 |c_ULTIMATE.start_check_gcd_~gcd#1|) |c_ULTIMATE.start_check_gcd_~a_in#1|) 4294967296) 0) (< 0 .cse1) (= (mod (+ |c_ULTIMATE.start_main_~a_in~0#1| (* |c_ULTIMATE.start_start_#res#1| 4294967295) (* .cse6 4294967295)) 4294967296) 0) (< 0 (mod |c_ULTIMATE.start_start_#in~b_in#1| 4294967296))))) is different from false [2022-02-11 07:48:03,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:48:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-11 07:48:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-11 07:48:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-11 07:48:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-11 07:48:03,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-11 07:48:03,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,ResultService,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:48:03,996 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-11 07:48:03,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:48:03,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1855386739, now seen corresponding path program 1 times [2022-02-11 07:48:03,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:48:03,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402739003] [2022-02-11 07:48:03,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:48:03,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:48:04,017 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-11 07:48:04,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868759670] [2022-02-11 07:48:04,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:48:04,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:48:04,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:48:04,029 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 07:48:04,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-11 07:48:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:48:04,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 28 conjunts are in the unsatisfiable core [2022-02-11 07:48:04,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 07:48:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 07:48:04,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-11 07:48:04,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:48:04,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402739003] [2022-02-11 07:48:04,791 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-02-11 07:48:04,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868759670] [2022-02-11 07:48:04,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868759670] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 07:48:04,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 07:48:04,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-11 07:48:04,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439724951] [2022-02-11 07:48:04,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 07:48:04,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-11 07:48:04,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:48:04,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-11 07:48:04,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-02-11 07:48:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:48:04,794 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:48:04,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.0625) internal successors, (113), 16 states have internal predecessors, (113), 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) [2022-02-11 07:48:04,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:48:04,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-11 07:48:04,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-02-11 07:48:04,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-02-11 07:48:04,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-11 07:48:04,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:48:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:48:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-11 07:48:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-11 07:48:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-11 07:48:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-11 07:48:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-11 07:48:06,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-11 07:48:06,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: ResultService,SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:48:06,281 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-02-11 07:48:06,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:48:06,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2116801842, now seen corresponding path program 1 times [2022-02-11 07:48:06,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:48:06,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859319698] [2022-02-11 07:48:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:48:06,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:48:06,295 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-11 07:48:06,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650568497] [2022-02-11 07:48:06,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:48:06,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:48:06,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:48:06,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-11 07:48:06,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-11 07:48:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:48:06,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 40 conjunts are in the unsatisfiable core [2022-02-11 07:48:06,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-11 08:01:02,289 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-11 08:01:02,292 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-11 08:01:02,292 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-11 08:01:02,392 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-02-11 08:01:02,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-11 08:01:02,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 08:01:02,604 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-12-1 context. [2022-02-11 08:01:02,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-02-11 08:01:02,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-02-11 08:01:02,605 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 5 remaining) [2022-02-11 08:01:02,606 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 5 remaining) [2022-02-11 08:01:02,608 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-02-11 08:01:02,610 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-11 08:01:02,610 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-11 08:01:02,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.02 08:01:02 BasicIcfg [2022-02-11 08:01:02,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-11 08:01:02,617 INFO L158 Benchmark]: Toolchain (without parser) took 882247.86ms. Allocated memory was 168.8MB in the beginning and 267.4MB in the end (delta: 98.6MB). Free memory was 112.7MB in the beginning and 118.0MB in the end (delta: -5.3MB). Peak memory consumption was 143.7MB. Max. memory is 8.0GB. [2022-02-11 08:01:02,617 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 168.8MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-11 08:01:02,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.55ms. Allocated memory is still 168.8MB. Free memory was 112.4MB in the beginning and 130.5MB in the end (delta: -18.0MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-02-11 08:01:02,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.89ms. Allocated memory is still 168.8MB. Free memory was 130.5MB in the beginning and 128.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-11 08:01:02,625 INFO L158 Benchmark]: Boogie Preprocessor took 31.42ms. Allocated memory is still 168.8MB. Free memory was 128.4MB in the beginning and 126.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-11 08:01:02,625 INFO L158 Benchmark]: RCFGBuilder took 361.76ms. Allocated memory is still 168.8MB. Free memory was 126.8MB in the beginning and 110.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-02-11 08:01:02,626 INFO L158 Benchmark]: TraceAbstraction took 881379.54ms. Allocated memory was 168.8MB in the beginning and 267.4MB in the end (delta: 98.6MB). Free memory was 110.0MB in the beginning and 118.0MB in the end (delta: -7.9MB). Peak memory consumption was 141.7MB. Max. memory is 8.0GB. [2022-02-11 08:01:02,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 168.8MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 418.55ms. Allocated memory is still 168.8MB. Free memory was 112.4MB in the beginning and 130.5MB in the end (delta: -18.0MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.89ms. Allocated memory is still 168.8MB. Free memory was 130.5MB in the beginning and 128.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.42ms. Allocated memory is still 168.8MB. Free memory was 128.4MB in the beginning and 126.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 361.76ms. Allocated memory is still 168.8MB. Free memory was 126.8MB in the beginning and 110.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 881379.54ms. Allocated memory was 168.8MB in the beginning and 267.4MB in the end (delta: 98.6MB). Free memory was 110.0MB in the beginning and 118.0MB in the end (delta: -7.9MB). Peak memory consumption was 141.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 469, positive: 410, positive conditional: 101, positive unconditional: 309, negative: 59, negative conditional: 57, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 209, positive unconditional: 1240, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 209, positive unconditional: 1240, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 155, positive unconditional: 1294, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 27, positive unconditional: 1422, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 27, positive unconditional: 1422, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 548, positive: 546, positive conditional: 0, positive unconditional: 546, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 548, positive: 528, positive conditional: 0, positive unconditional: 528, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1452, positive: 903, positive conditional: 27, positive unconditional: 876, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 548, unknown conditional: 0, unknown unconditional: 548] , Statistics on independence cache: Total cache size (in pairs): 548, Positive cache size: 546, Positive conditional cache size: 0, Positive unconditional cache size: 546, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 128, Maximal queried relation: 0, Independence queries for same thread: 57 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 120, Number of trivial persistent sets: 113, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 311, positive: 309, positive conditional: 0, positive unconditional: 309, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 469, positive: 410, positive conditional: 101, positive unconditional: 309, negative: 59, negative conditional: 57, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 209, positive unconditional: 1240, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 209, positive unconditional: 1240, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 155, positive unconditional: 1294, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 27, positive unconditional: 1422, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1452, positive: 1449, positive conditional: 27, positive unconditional: 1422, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 548, positive: 546, positive conditional: 0, positive unconditional: 546, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 548, positive: 528, positive conditional: 0, positive unconditional: 528, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1452, positive: 903, positive conditional: 27, positive unconditional: 876, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 548, unknown conditional: 0, unknown unconditional: 548] , Statistics on independence cache: Total cache size (in pairs): 548, Positive cache size: 546, Positive conditional cache size: 0, Positive unconditional cache size: 546, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 128, Maximal queried relation: 0, Independence queries for same thread: 57 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-12-1 context. - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-12-1 context. - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-12-1 context. - TimeoutResultAtElement [Line: 729]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-12-1 context. - TimeoutResultAtElement [Line: 730]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-12-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 156 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 881.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 68.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 33.9s InterpolantComputationTime, 663 NumberOfCodeBlocks, 663 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 763 ConstructedInterpolants, 0 QuantifiedInterpolants, 6702 SizeOfPredicates, 83 NumberOfNonLiveVariables, 1186 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown