/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-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 20:45:49,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 20:45:49,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 20:45:49,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-18 20:45:49,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-18 20:45:49,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-18 20:45:49,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-18 20:45:49,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-18 20:45:49,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-18 20:45:49,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-18 20:45:49,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-18 20:45:49,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-18 20:45:49,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-18 20:45:49,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-18 20:45:49,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-18 20:45:49,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-18 20:45:49,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-18 20:45:49,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-18 20:45:49,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-18 20:45:49,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-18 20:45:49,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-18 20:45:49,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-18 20:45:49,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-18 20:45:49,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-18 20:45:49,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-18 20:45:49,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-18 20:45:49,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-18 20:45:49,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-18 20:45:49,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-18 20:45:49,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-18 20:45:49,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-18 20:45:49,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-18 20:45:49,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-18 20:45:49,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-18 20:45:49,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-18 20:45:49,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-18 20:45:49,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-18 20:45:49,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-18 20:45:49,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 20:45:49,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 20:45:49,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 20:45:49,411 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-NewStatesSleep-NoLbe.epf [2022-02-18 20:45:49,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 20:45:49,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 20:45:49,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 20:45:49,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 20:45:49,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 20:45:49,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 20:45:49,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 20:45:49,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 20:45:49,438 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 20:45:49,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 20:45:49,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 20:45:49,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 20:45:49,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 20:45:49,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 20:45:49,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 20:45:49,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-18 20:45:49,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 20:45:49,441 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-18 20:45:49,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 20:45:49,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 20:45:49,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 20:45:49,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 20:45:49,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 20:45:49,601 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 20:45:49,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-02-18 20:45:49,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/300705b11/20a9e25d994c4af9a2f87005ded6c26d/FLAG65ce27cfe [2022-02-18 20:45:50,016 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 20:45:50,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-02-18 20:45:50,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/300705b11/20a9e25d994c4af9a2f87005ded6c26d/FLAG65ce27cfe [2022-02-18 20:45:50,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/300705b11/20a9e25d994c4af9a2f87005ded6c26d [2022-02-18 20:45:50,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 20:45:50,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 20:45:50,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 20:45:50,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 20:45:50,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 20:45:50,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@505533d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50, skipping insertion in model container [2022-02-18 20:45:50,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 20:45:50,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 20:45:50,188 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-02-18 20:45:50,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 20:45:50,194 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 20:45:50,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-02-18 20:45:50,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 20:45:50,214 INFO L208 MainTranslator]: Completed translation [2022-02-18 20:45:50,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50 WrapperNode [2022-02-18 20:45:50,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 20:45:50,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 20:45:50,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 20:45:50,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 20:45:50,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,240 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-02-18 20:45:50,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 20:45:50,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 20:45:50,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 20:45:50,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 20:45:50,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 20:45:50,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 20:45:50,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 20:45:50,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 20:45:50,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (1/1) ... [2022-02-18 20:45:50,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 20:45:50,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:45:50,288 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) [2022-02-18 20:45:50,296 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 [2022-02-18 20:45:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 20:45:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 20:45:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 20:45:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 20:45:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 20:45:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 20:45:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 20:45:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 20:45:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 20:45:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 20:45:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 20:45:50,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 20:45:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-18 20:45:50,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 20:45:50,321 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 20:45:50,368 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 20:45:50,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 20:45:50,471 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 20:45:50,496 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 20:45:50,496 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-18 20:45:50,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:45:50 BoogieIcfgContainer [2022-02-18 20:45:50,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 20:45:50,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 20:45:50,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 20:45:50,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 20:45:50,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:45:50" (1/3) ... [2022-02-18 20:45:50,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16787ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:45:50, skipping insertion in model container [2022-02-18 20:45:50,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:45:50" (2/3) ... [2022-02-18 20:45:50,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16787ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:45:50, skipping insertion in model container [2022-02-18 20:45:50,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:45:50" (3/3) ... [2022-02-18 20:45:50,503 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2022-02-18 20:45:50,506 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 20:45:50,506 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 20:45:50,506 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 20:45:50,506 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 20:45:50,529 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,530 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,530 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,530 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,530 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,531 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,531 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,531 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,531 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,531 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,531 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,532 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,532 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,532 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,533 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,533 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,533 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,533 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,533 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,533 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,534 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,534 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,534 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,534 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,535 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,535 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,536 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,536 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,536 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,537 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,537 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,539 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,540 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,541 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,541 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:45:50,545 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-18 20:45:50,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-18 20:45:50,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:45:50,615 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) [2022-02-18 20:45:50,638 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 [2022-02-18 20:45:50,645 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 20:45:50,652 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, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 20:45:50,652 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-18 20:45:50,742 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:45:50,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:45:50,750 INFO L85 PathProgramCache]: Analyzing trace with hash 834222894, now seen corresponding path program 1 times [2022-02-18 20:45:50,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:45:50,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360694185] [2022-02-18 20:45:50,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:45:50,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:45:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:45:50,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:50,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:45:50,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360694185] [2022-02-18 20:45:50,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360694185] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 20:45:50,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 20:45:50,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 20:45:50,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219363646] [2022-02-18 20:45:50,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 20:45:50,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 20:45:50,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:45:50,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 20:45:50,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 20:45:50,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:50,968 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:45:50,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 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) [2022-02-18 20:45:50,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 20:45:51,009 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:45:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:45:51,010 INFO L85 PathProgramCache]: Analyzing trace with hash 290398187, now seen corresponding path program 1 times [2022-02-18 20:45:51,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:45:51,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32318833] [2022-02-18 20:45:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:45:51,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:45:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:45:51,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:51,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:45:51,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32318833] [2022-02-18 20:45:51,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32318833] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 20:45:51,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 20:45:51,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 20:45:51,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111155260] [2022-02-18 20:45:51,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 20:45:51,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 20:45:51,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:45:51,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 20:45:51,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-18 20:45:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,259 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:45:51,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:45:51,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:51,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 20:45:51,345 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:45:51,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:45:51,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1140105023, now seen corresponding path program 1 times [2022-02-18 20:45:51,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:45:51,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598069674] [2022-02-18 20:45:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:45:51,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:45:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:45:51,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 20:45:51,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:45:51,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598069674] [2022-02-18 20:45:51,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598069674] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 20:45:51,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 20:45:51,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 20:45:51,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106132697] [2022-02-18 20:45:51,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 20:45:51,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 20:45:51,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:45:51,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 20:45:51,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-18 20:45:51,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,514 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:45:51,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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) [2022-02-18 20:45:51,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:51,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:51,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 20:45:51,579 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:45:51,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:45:51,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1844773149, now seen corresponding path program 1 times [2022-02-18 20:45:51,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:45:51,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771851786] [2022-02-18 20:45:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:45:51,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:45:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:45:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:51,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:45:51,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771851786] [2022-02-18 20:45:51,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771851786] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:45:51,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765798093] [2022-02-18 20:45:51,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:45:51,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:45:51,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:45:51,826 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) [2022-02-18 20:45:51,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 20:45:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:45:51,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-18 20:45:51,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:45:52,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:52,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:45:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:52,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765798093] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:45:52,859 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:45:52,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 33 [2022-02-18 20:45:52,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198210086] [2022-02-18 20:45:52,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:45:52,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-18 20:45:52,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:45:52,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-18 20:45:52,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=882, Unknown=0, NotChecked=0, Total=1056 [2022-02-18 20:45:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:52,862 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:45:52,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.0606060606060606) internal successors, (134), 33 states have internal predecessors, (134), 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) [2022-02-18 20:45:52,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:52,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:52,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:52,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:53,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-18 20:45:53,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-18 20:45:53,771 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,SelfDestructingSolverStorable3 [2022-02-18 20:45:53,772 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:45:53,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:45:53,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1496480925, now seen corresponding path program 2 times [2022-02-18 20:45:53,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:45:53,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181852204] [2022-02-18 20:45:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:45:53,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:45:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:45:54,116 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:54,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:45:54,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181852204] [2022-02-18 20:45:54,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181852204] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:45:54,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22469382] [2022-02-18 20:45:54,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 20:45:54,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:45:54,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:45:54,118 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) [2022-02-18 20:45:54,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 20:45:54,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 20:45:54,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:45:54,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-18 20:45:54,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:45:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:54,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:45:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:55,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22469382] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:45:55,560 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:45:55,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 50 [2022-02-18 20:45:55,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682428287] [2022-02-18 20:45:55,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:45:55,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-18 20:45:55,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:45:55,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-18 20:45:55,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=2215, Unknown=0, NotChecked=0, Total=2450 [2022-02-18 20:45:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:55,562 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:45:55,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.24) internal successors, (162), 50 states have internal predecessors, (162), 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) [2022-02-18 20:45:55,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:55,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:55,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:55,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-02-18 20:45:55,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:45:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:45:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:45:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:45:57,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-18 20:45:57,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:45:57,375 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:45:57,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:45:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1580530251, now seen corresponding path program 3 times [2022-02-18 20:45:57,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:45:57,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030031808] [2022-02-18 20:45:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:45:57,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:45:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:45:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 21 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:57,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:45:57,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030031808] [2022-02-18 20:45:57,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030031808] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:45:57,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579433297] [2022-02-18 20:45:57,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 20:45:57,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:45:57,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:45:57,866 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) [2022-02-18 20:45:57,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 20:45:57,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-02-18 20:45:57,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:45:57,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-18 20:45:57,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:45:58,847 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:45:58,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:46:00,091 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 1 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:00,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579433297] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:46:00,091 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:46:00,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 70 [2022-02-18 20:46:00,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202392837] [2022-02-18 20:46:00,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:46:00,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-18 20:46:00,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:46:00,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-18 20:46:00,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=460, Invalid=4370, Unknown=0, NotChecked=0, Total=4830 [2022-02-18 20:46:00,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:00,094 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:46:00,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.7857142857142856) internal successors, (195), 70 states have internal predecessors, (195), 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) [2022-02-18 20:46:00,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:00,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:00,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:00,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:00,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:00,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:01,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:01,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:01,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:01,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:01,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:01,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:01,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-18 20:46:01,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:01,603 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:46:01,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:46:01,604 INFO L85 PathProgramCache]: Analyzing trace with hash 134953023, now seen corresponding path program 4 times [2022-02-18 20:46:01,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:46:01,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817343928] [2022-02-18 20:46:01,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:46:01,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:46:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:46:02,081 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 38 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:02,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:46:02,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817343928] [2022-02-18 20:46:02,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817343928] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:46:02,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898496886] [2022-02-18 20:46:02,081 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 20:46:02,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:02,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:46:02,083 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) [2022-02-18 20:46:02,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-18 20:46:02,127 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 20:46:02,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:46:02,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 52 conjunts are in the unsatisfiable core [2022-02-18 20:46:02,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:46:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:03,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:46:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 20:46:04,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898496886] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:46:04,642 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:46:04,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 30] total 81 [2022-02-18 20:46:04,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458080218] [2022-02-18 20:46:04,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:46:04,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-02-18 20:46:04,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:46:04,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-02-18 20:46:04,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=533, Invalid=5947, Unknown=0, NotChecked=0, Total=6480 [2022-02-18 20:46:04,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:04,645 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:46:04,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 2.6790123456790123) internal successors, (217), 81 states have internal predecessors, (217), 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) [2022-02-18 20:46:04,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:04,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:04,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:04,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:04,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:04,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:04,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:06,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-18 20:46:06,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:06,811 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:46:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:46:06,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1504160449, now seen corresponding path program 5 times [2022-02-18 20:46:06,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:46:06,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73607352] [2022-02-18 20:46:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:46:06,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:46:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:46:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 60 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:07,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:46:07,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73607352] [2022-02-18 20:46:07,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73607352] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:46:07,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027232650] [2022-02-18 20:46:07,447 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 20:46:07,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:07,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:46:07,448 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) [2022-02-18 20:46:07,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-18 20:46:07,505 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-02-18 20:46:07,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:46:07,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-18 20:46:07,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:46:08,911 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:08,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:46:10,671 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 9 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:10,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027232650] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:46:10,672 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:46:10,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 39, 38] total 102 [2022-02-18 20:46:10,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474579487] [2022-02-18 20:46:10,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:46:10,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-02-18 20:46:10,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:46:10,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-02-18 20:46:10,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=885, Invalid=9417, Unknown=0, NotChecked=0, Total=10302 [2022-02-18 20:46:10,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:10,676 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:46:10,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.5) internal successors, (255), 102 states have internal predecessors, (255), 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) [2022-02-18 20:46:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:10,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:46:13,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-18 20:46:13,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:13,607 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:46:13,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:46:13,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1318910481, now seen corresponding path program 6 times [2022-02-18 20:46:13,607 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:46:13,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556642484] [2022-02-18 20:46:13,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:46:13,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:46:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:46:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 87 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:14,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:46:14,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556642484] [2022-02-18 20:46:14,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556642484] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:46:14,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165027175] [2022-02-18 20:46:14,357 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 20:46:14,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:14,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:46:14,358 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) [2022-02-18 20:46:14,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-18 20:46:14,432 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2022-02-18 20:46:14,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:46:14,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 73 conjunts are in the unsatisfiable core [2022-02-18 20:46:14,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:46:16,039 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:16,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:46:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 205 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-18 20:46:18,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165027175] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:46:18,438 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:46:18,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 44, 39] total 113 [2022-02-18 20:46:18,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61624680] [2022-02-18 20:46:18,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:46:18,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-02-18 20:46:18,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:46:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-02-18 20:46:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=11759, Unknown=0, NotChecked=0, Total=12656 [2022-02-18 20:46:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:18,441 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:46:18,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 2.424778761061947) internal successors, (274), 113 states have internal predecessors, (274), 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) [2022-02-18 20:46:18,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:46:18,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:46:21,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:46:21,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-18 20:46:21,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:21,970 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:46:21,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:46:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash 130067901, now seen corresponding path program 7 times [2022-02-18 20:46:21,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:46:21,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214096118] [2022-02-18 20:46:21,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:46:21,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:46:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:46:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 124 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:22,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:46:22,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214096118] [2022-02-18 20:46:22,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214096118] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:46:22,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724007536] [2022-02-18 20:46:22,969 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-18 20:46:22,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:22,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:46:22,971 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:46:22,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-18 20:46:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:46:23,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 87 conjunts are in the unsatisfiable core [2022-02-18 20:46:23,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:46:25,118 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:25,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:46:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-02-18 20:46:28,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724007536] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:46:28,131 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:46:28,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 52, 45] total 134 [2022-02-18 20:46:28,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131010224] [2022-02-18 20:46:28,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:46:28,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-02-18 20:46:28,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:46:28,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-02-18 20:46:28,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1182, Invalid=16640, Unknown=0, NotChecked=0, Total=17822 [2022-02-18 20:46:28,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:28,136 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:46:28,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 2.328358208955224) internal successors, (312), 134 states have internal predecessors, (312), 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) [2022-02-18 20:46:28,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:28,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:28,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:28,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:28,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:28,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:28,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:28,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:46:28,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:46:28,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:46:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:46:32,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-18 20:46:32,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-18 20:46:32,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-18 20:46:32,967 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:46:32,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:46:32,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1700335735, now seen corresponding path program 8 times [2022-02-18 20:46:32,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:46:32,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638133762] [2022-02-18 20:46:32,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:46:32,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:46:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:46:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 171 proven. 332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:34,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:46:34,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638133762] [2022-02-18 20:46:34,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638133762] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:46:34,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69643920] [2022-02-18 20:46:34,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 20:46:34,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:34,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:46:34,160 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:46:34,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-18 20:46:34,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 20:46:34,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:46:34,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 101 conjunts are in the unsatisfiable core [2022-02-18 20:46:34,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:46:36,899 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 0 proven. 503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:36,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:46:40,773 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-18 20:46:40,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69643920] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:46:40,774 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:46:40,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 60, 51] total 155 [2022-02-18 20:46:40,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603333468] [2022-02-18 20:46:40,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:46:40,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2022-02-18 20:46:40,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:46:40,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2022-02-18 20:46:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1528, Invalid=22342, Unknown=0, NotChecked=0, Total=23870 [2022-02-18 20:46:40,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:40,779 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:46:40,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 2.2580645161290325) internal successors, (350), 155 states have internal predecessors, (350), 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) [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:46:40,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-18 20:46:40,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:48,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:48,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-18 20:46:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:46:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-18 20:46:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-18 20:46:48,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-18 20:46:48,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:48,412 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:46:48,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:46:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1066040081, now seen corresponding path program 9 times [2022-02-18 20:46:48,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:46:48,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991827690] [2022-02-18 20:46:48,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:46:48,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:46:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:46:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-02-18 20:46:48,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:46:48,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991827690] [2022-02-18 20:46:48,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991827690] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:46:48,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153699571] [2022-02-18 20:46:48,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 20:46:48,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:48,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:46:48,631 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:46:48,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-18 20:46:48,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2022-02-18 20:46:48,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:46:48,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-18 20:46:48,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:46:49,217 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 20 proven. 744 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 20:46:49,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:46:49,816 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 326 proven. 411 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-02-18 20:46:49,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153699571] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:46:49,816 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:46:49,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 15] total 27 [2022-02-18 20:46:49,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336601768] [2022-02-18 20:46:49,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:46:49,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-18 20:46:49,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:46:49,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-18 20:46:49,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2022-02-18 20:46:49,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:49,818 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:46:49,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.185185185185185) internal successors, (248), 27 states have internal predecessors, (248), 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) [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-02-18 20:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:46:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:46:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:46:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:46:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:46:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:46:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-18 20:46:49,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:46:49,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-18 20:46:49,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-18 20:46:49,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 20:46:49,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-18 20:46:50,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-18 20:46:50,118 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:46:50,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:46:50,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1930365925, now seen corresponding path program 10 times [2022-02-18 20:46:50,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:46:50,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455256149] [2022-02-18 20:46:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:46:50,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:46:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:46:51,786 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 275 proven. 566 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:51,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:46:51,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455256149] [2022-02-18 20:46:51,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455256149] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:46:51,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322313424] [2022-02-18 20:46:51,787 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 20:46:51,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:46:51,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:46:51,788 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:46:51,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-18 20:46:51,859 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 20:46:51,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:46:51,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 124 conjunts are in the unsatisfiable core [2022-02-18 20:46:51,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:46:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 841 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:46:55,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:47:00,637 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 106 proven. 735 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:47:00,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322313424] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:47:00,637 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:47:00,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 74, 70] total 201 [2022-02-18 20:47:00,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981971511] [2022-02-18 20:47:00,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:47:00,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 201 states [2022-02-18 20:47:00,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:47:00,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 201 interpolants. [2022-02-18 20:47:00,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4338, Invalid=35862, Unknown=0, NotChecked=0, Total=40200 [2022-02-18 20:47:00,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:47:00,642 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:47:00,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 201 states, 201 states have (on average 2.1940298507462686) internal successors, (441), 201 states have internal predecessors, (441), 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) [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-18 20:47:00,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:47:06,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 20:47:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-02-18 20:47:07,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-18 20:47:07,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-18 20:47:07,197 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:47:07,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:47:07,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1509475365, now seen corresponding path program 11 times [2022-02-18 20:47:07,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:47:07,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13320500] [2022-02-18 20:47:07,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:47:07,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:47:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:47:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 347 proven. 725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:47:09,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:47:09,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13320500] [2022-02-18 20:47:09,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13320500] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:47:09,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814950263] [2022-02-18 20:47:09,080 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 20:47:09,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:47:09,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:47:09,081 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:47:09,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-18 20:47:09,173 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2022-02-18 20:47:09,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:47:09,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 138 conjunts are in the unsatisfiable core [2022-02-18 20:47:09,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:47:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 1072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:47:13,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:47:20,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 16 proven. 924 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-02-18 20:47:20,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814950263] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:47:20,138 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:47:20,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 82, 70] total 216 [2022-02-18 20:47:20,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795241683] [2022-02-18 20:47:20,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:47:20,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2022-02-18 20:47:20,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:47:20,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2022-02-18 20:47:20,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3204, Invalid=43236, Unknown=0, NotChecked=0, Total=46440 [2022-02-18 20:47:20,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:47:20,143 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:47:20,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 216 states have (on average 2.134259259259259) internal successors, (461), 216 states have internal predecessors, (461), 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) [2022-02-18 20:47:20,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:47:20,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:47:20,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:47:20,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-18 20:47:20,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-18 20:47:20,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:47:20,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:47:20,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-18 20:47:20,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-18 20:47:20,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-18 20:47:20,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-02-18 20:47:20,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-18 20:47:20,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-02-18 20:47:20,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:50:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:50:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:50:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-18 20:50:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-18 20:50:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:50:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-18 20:50:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-02-18 20:50:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2022-02-18 20:50:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 501 states. [2022-02-18 20:50:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 622 states. [2022-02-18 20:50:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 745 states. [2022-02-18 20:50:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-18 20:50:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 602 states. [2022-02-18 20:50:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 891 states. [2022-02-18 20:50:39,111 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-18 20:50:39,112 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-18 20:50:39,112 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-18 20:50:39,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-18 20:50:39,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-18 20:50:39,338 INFO L732 BasicCegarLoop]: Path program histogram: [11, 1, 1, 1] [2022-02-18 20:50:39,340 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 20:50:39,340 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 20:50:39,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 08:50:39 BasicIcfg [2022-02-18 20:50:39,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 20:50:39,342 INFO L158 Benchmark]: Toolchain (without parser) took 289300.97ms. Allocated memory was 180.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 124.4MB in the beginning and 837.2MB in the end (delta: -712.7MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-18 20:50:39,342 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 180.4MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 20:50:39,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.33ms. Allocated memory is still 180.4MB. Free memory was 124.2MB in the beginning and 149.7MB in the end (delta: -25.5MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-02-18 20:50:39,343 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.88ms. Allocated memory is still 180.4MB. Free memory was 149.7MB in the beginning and 148.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 20:50:39,343 INFO L158 Benchmark]: Boogie Preprocessor took 15.55ms. Allocated memory is still 180.4MB. Free memory was 148.3MB in the beginning and 147.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 20:50:39,343 INFO L158 Benchmark]: RCFGBuilder took 241.06ms. Allocated memory is still 180.4MB. Free memory was 147.2MB in the beginning and 134.0MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-18 20:50:39,344 INFO L158 Benchmark]: TraceAbstraction took 288843.11ms. Allocated memory was 180.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 133.4MB in the beginning and 837.2MB in the end (delta: -703.8MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-18 20:50:39,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 180.4MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 171.33ms. Allocated memory is still 180.4MB. Free memory was 124.2MB in the beginning and 149.7MB in the end (delta: -25.5MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.88ms. Allocated memory is still 180.4MB. Free memory was 149.7MB in the beginning and 148.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.55ms. Allocated memory is still 180.4MB. Free memory was 148.3MB in the beginning and 147.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 241.06ms. Allocated memory is still 180.4MB. Free memory was 147.2MB in the beginning and 134.0MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 288843.11ms. Allocated memory was 180.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 133.4MB in the beginning and 837.2MB in the end (delta: -703.8MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 317453, positive: 242170, positive conditional: 242170, positive unconditional: 0, negative: 75283, negative conditional: 75283, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 242422, positive: 242170, positive conditional: 242170, positive unconditional: 0, negative: 252, negative conditional: 252, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 242422, positive: 242170, positive conditional: 242170, positive unconditional: 0, negative: 252, negative conditional: 252, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 245708, positive: 242170, positive conditional: 242116, positive unconditional: 54, negative: 3538, negative conditional: 3286, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 245708, positive: 242170, positive conditional: 166088, positive unconditional: 76082, negative: 3538, negative conditional: 2786, negative unconditional: 752, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 245708, positive: 242170, positive conditional: 166088, positive unconditional: 76082, negative: 3538, negative conditional: 2786, negative unconditional: 752, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8224, positive: 8154, positive conditional: 8041, positive unconditional: 113, negative: 70, negative conditional: 69, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8224, positive: 8014, positive conditional: 0, positive unconditional: 8014, negative: 210, negative conditional: 0, negative unconditional: 210, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 210, positive: 140, positive conditional: 140, positive unconditional: 0, negative: 70, negative conditional: 69, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 433, positive: 299, positive conditional: 299, positive unconditional: 0, negative: 134, negative conditional: 133, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 245708, positive: 234016, positive conditional: 158047, positive unconditional: 75969, negative: 3468, negative conditional: 2717, negative unconditional: 751, unknown: 8224, unknown conditional: 8110, unknown unconditional: 114] , Statistics on independence cache: Total cache size (in pairs): 8224, Positive cache size: 8154, Positive conditional cache size: 8041, Positive unconditional cache size: 113, Negative cache size: 70, Negative conditional cache size: 69, Negative unconditional cache size: 1, Eliminated conditions: 76528, Maximal queried relation: 13, Independence queries for same thread: 75031 - 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 - PositiveResult [Line: 78]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 98 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 288.7s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 229.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4018, 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, 0.7s SatisfiabilityAnalysisTime, 55.6s InterpolantComputationTime, 2935 NumberOfCodeBlocks, 2923 NumberOfCodeBlocksAsserted, 84 NumberOfCheckSat, 4270 ConstructedInterpolants, 0 QuantifiedInterpolants, 39782 SizeOfPredicates, 285 NumberOfNonLiveVariables, 2559 ConjunctsInSsa, 780 ConjunctsInUnsatCore, 36 InterpolantComputations, 3 PerfectInterpolantSequences, 1929/12271 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! [2022-02-18 20:50:39,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-02-18 20:50:39,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...