/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 11:56:00,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 11:56:00,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 11:56:00,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 11:56:00,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 11:56:00,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 11:56:00,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 11:56:00,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 11:56:00,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 11:56:00,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 11:56:00,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 11:56:00,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 11:56:00,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 11:56:00,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 11:56:00,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 11:56:00,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 11:56:00,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 11:56:00,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 11:56:00,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 11:56:00,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 11:56:00,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 11:56:00,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 11:56:00,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 11:56:00,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 11:56:00,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 11:56:00,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 11:56:00,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 11:56:00,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 11:56:00,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 11:56:00,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 11:56:00,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 11:56:00,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 11:56:00,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 11:56:00,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 11:56:00,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 11:56:00,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 11:56:00,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 11:56:00,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 11:56:00,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 11:56:00,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 11:56:00,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 11:56:00,550 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 11:56:00,577 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 11:56:00,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 11:56:00,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 11:56:00,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 11:56:00,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 11:56:00,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 11:56:00,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 11:56:00,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 11:56:00,579 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 11:56:00,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 11:56:00,580 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 11:56:00,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 11:56:00,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 11:56:00,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 11:56:00,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 11:56:00,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 11:56:00,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:56:00,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 11:56:00,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 11:56:00,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 11:56:00,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 11:56:00,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 11:56:00,583 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 11:56:00,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 11:56:00,583 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 11:56:00,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 11:56:00,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 11:56:00,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 11:56:00,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 11:56:00,747 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 11:56:00,747 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 11:56:00,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c [2022-01-18 11:56:00,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c1c4543/faf38b5680f248d4a5a477e01214017a/FLAG8e3f64aec [2022-01-18 11:56:01,175 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 11:56:01,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c [2022-01-18 11:56:01,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c1c4543/faf38b5680f248d4a5a477e01214017a/FLAG8e3f64aec [2022-01-18 11:56:01,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c1c4543/faf38b5680f248d4a5a477e01214017a [2022-01-18 11:56:01,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 11:56:01,194 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 11:56:01,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 11:56:01,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 11:56:01,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 11:56:01,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b2c702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01, skipping insertion in model container [2022-01-18 11:56:01,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 11:56:01,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 11:56:01,352 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-bad-counter-queue2.wvr.c[2271,2284] [2022-01-18 11:56:01,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:56:01,369 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 11:56:01,380 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-bad-counter-queue2.wvr.c[2271,2284] [2022-01-18 11:56:01,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:56:01,401 INFO L208 MainTranslator]: Completed translation [2022-01-18 11:56:01,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01 WrapperNode [2022-01-18 11:56:01,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 11:56:01,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 11:56:01,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 11:56:01,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 11:56:01,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,435 INFO L137 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 138 [2022-01-18 11:56:01,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 11:56:01,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 11:56:01,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 11:56:01,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 11:56:01,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 11:56:01,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 11:56:01,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 11:56:01,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 11:56:01,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (1/1) ... [2022-01-18 11:56:01,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:56:01,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:01,484 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) [2022-01-18 11:56:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 11:56:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 11:56:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 11:56:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 11:56:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 11:56:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 11:56:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 11:56:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 11:56:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 11:56:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 11:56:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 11:56:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 11:56:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 11:56:01,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 11:56:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 11:56:01,514 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 11:56:01,502 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 [2022-01-18 11:56:01,614 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 11:56:01,615 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 11:56:01,808 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 11:56:01,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 11:56:01,899 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-18 11:56:01,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:56:01 BoogieIcfgContainer [2022-01-18 11:56:01,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 11:56:01,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 11:56:01,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 11:56:01,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 11:56:01,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:56:01" (1/3) ... [2022-01-18 11:56:01,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45609f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:56:01, skipping insertion in model container [2022-01-18 11:56:01,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:56:01" (2/3) ... [2022-01-18 11:56:01,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45609f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:56:01, skipping insertion in model container [2022-01-18 11:56:01,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:56:01" (3/3) ... [2022-01-18 11:56:01,907 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue2.wvr.c [2022-01-18 11:56:01,910 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 11:56:01,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 11:56:01,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 11:56:01,911 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 11:56:01,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,972 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,997 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:01,998 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:56:02,000 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 11:56:02,034 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 11:56:02,040 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 11:56:02,040 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 11:56:02,052 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 117 transitions, 250 flow [2022-01-18 11:56:02,110 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 474 states, 473 states have (on average 2.553911205073996) internal successors, (1208), 473 states have internal predecessors, (1208), 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) [2022-01-18 11:56:02,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 474 states, 473 states have (on average 2.553911205073996) internal successors, (1208), 473 states have internal predecessors, (1208), 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) [2022-01-18 11:56:02,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-18 11:56:02,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:02,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:02,127 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:02,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:02,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1042227018, now seen corresponding path program 1 times [2022-01-18 11:56:02,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:02,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482223564] [2022-01-18 11:56:02,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:02,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:02,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:02,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482223564] [2022-01-18 11:56:02,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482223564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:02,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:02,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 11:56:02,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528751328] [2022-01-18 11:56:02,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:02,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 11:56:02,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 11:56:02,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 11:56:02,320 INFO L87 Difference]: Start difference. First operand has 474 states, 473 states have (on average 2.553911205073996) internal successors, (1208), 473 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 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) [2022-01-18 11:56:02,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:02,365 INFO L93 Difference]: Finished difference Result 474 states and 1123 transitions. [2022-01-18 11:56:02,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 11:56:02,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-01-18 11:56:02,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:02,377 INFO L225 Difference]: With dead ends: 474 [2022-01-18 11:56:02,377 INFO L226 Difference]: Without dead ends: 471 [2022-01-18 11:56:02,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 11:56:02,381 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:02,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:56:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-01-18 11:56:02,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2022-01-18 11:56:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 2.382978723404255) internal successors, (1120), 470 states have internal predecessors, (1120), 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) [2022-01-18 11:56:02,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 1120 transitions. [2022-01-18 11:56:02,434 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 1120 transitions. Word has length 80 [2022-01-18 11:56:02,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:02,434 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 1120 transitions. [2022-01-18 11:56:02,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 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) [2022-01-18 11:56:02,435 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 1120 transitions. [2022-01-18 11:56:02,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-18 11:56:02,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:02,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:02,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 11:56:02,438 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:02,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:02,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1132265463, now seen corresponding path program 1 times [2022-01-18 11:56:02,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:02,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865619145] [2022-01-18 11:56:02,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:02,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:02,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:02,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:02,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865619145] [2022-01-18 11:56:02,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865619145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:02,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:02,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 11:56:02,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976856438] [2022-01-18 11:56:02,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:02,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 11:56:02,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:02,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 11:56:02,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 11:56:02,595 INFO L87 Difference]: Start difference. First operand 471 states and 1120 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-01-18 11:56:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:02,651 INFO L93 Difference]: Finished difference Result 665 states and 1607 transitions. [2022-01-18 11:56:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 11:56:02,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-01-18 11:56:02,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:02,656 INFO L225 Difference]: With dead ends: 665 [2022-01-18 11:56:02,657 INFO L226 Difference]: Without dead ends: 614 [2022-01-18 11:56:02,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:56:02,658 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 13 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:02,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 297 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:56:02,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-01-18 11:56:02,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 561. [2022-01-18 11:56:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 560 states have (on average 2.4017857142857144) internal successors, (1345), 560 states have internal predecessors, (1345), 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) [2022-01-18 11:56:02,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 1345 transitions. [2022-01-18 11:56:02,685 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 1345 transitions. Word has length 80 [2022-01-18 11:56:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:02,686 INFO L470 AbstractCegarLoop]: Abstraction has 561 states and 1345 transitions. [2022-01-18 11:56:02,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-01-18 11:56:02,686 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 1345 transitions. [2022-01-18 11:56:02,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-18 11:56:02,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:02,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:02,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 11:56:02,688 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:02,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:02,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1589233609, now seen corresponding path program 1 times [2022-01-18 11:56:02,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:02,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435145765] [2022-01-18 11:56:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:02,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:02,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:02,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435145765] [2022-01-18 11:56:02,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435145765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:02,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:02,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:56:02,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22131835] [2022-01-18 11:56:02,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:02,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:56:02,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:02,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:56:02,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:56:02,810 INFO L87 Difference]: Start difference. First operand 561 states and 1345 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-01-18 11:56:02,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:02,909 INFO L93 Difference]: Finished difference Result 908 states and 2126 transitions. [2022-01-18 11:56:02,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:56:02,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-18 11:56:02,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:02,913 INFO L225 Difference]: With dead ends: 908 [2022-01-18 11:56:02,913 INFO L226 Difference]: Without dead ends: 860 [2022-01-18 11:56:02,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:56:02,914 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 288 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:02,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 302 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:56:02,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-01-18 11:56:02,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 717. [2022-01-18 11:56:02,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 2.3854748603351954) internal successors, (1708), 716 states have internal predecessors, (1708), 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) [2022-01-18 11:56:02,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1708 transitions. [2022-01-18 11:56:02,949 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1708 transitions. Word has length 85 [2022-01-18 11:56:02,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:02,949 INFO L470 AbstractCegarLoop]: Abstraction has 717 states and 1708 transitions. [2022-01-18 11:56:02,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-01-18 11:56:02,949 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1708 transitions. [2022-01-18 11:56:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-18 11:56:02,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:02,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:02,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 11:56:02,952 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:02,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:02,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1182158007, now seen corresponding path program 1 times [2022-01-18 11:56:02,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:02,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639945875] [2022-01-18 11:56:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:02,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:03,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:03,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639945875] [2022-01-18 11:56:03,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639945875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:56:03,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:56:03,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 11:56:03,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612425032] [2022-01-18 11:56:03,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:03,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:56:03,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:03,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:56:03,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 11:56:03,078 INFO L87 Difference]: Start difference. First operand 717 states and 1708 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-01-18 11:56:03,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:03,175 INFO L93 Difference]: Finished difference Result 628 states and 1461 transitions. [2022-01-18 11:56:03,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 11:56:03,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-18 11:56:03,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:03,181 INFO L225 Difference]: With dead ends: 628 [2022-01-18 11:56:03,181 INFO L226 Difference]: Without dead ends: 567 [2022-01-18 11:56:03,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-01-18 11:56:03,190 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 224 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:03,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 297 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:56:03,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-01-18 11:56:03,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 562. [2022-01-18 11:56:03,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 561 states have (on average 2.3992869875222818) internal successors, (1346), 561 states have internal predecessors, (1346), 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) [2022-01-18 11:56:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1346 transitions. [2022-01-18 11:56:03,209 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1346 transitions. Word has length 85 [2022-01-18 11:56:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:03,210 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 1346 transitions. [2022-01-18 11:56:03,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-01-18 11:56:03,211 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1346 transitions. [2022-01-18 11:56:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-18 11:56:03,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:03,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:03,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 11:56:03,215 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:03,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:03,217 INFO L85 PathProgramCache]: Analyzing trace with hash -568628832, now seen corresponding path program 1 times [2022-01-18 11:56:03,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:03,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450109283] [2022-01-18 11:56:03,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:03,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:03,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:03,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450109283] [2022-01-18 11:56:03,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450109283] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:03,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997739785] [2022-01-18 11:56:03,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:03,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:03,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:03,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 11:56:03,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 11:56:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:03,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 11:56:03,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:03,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:03,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:03,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:03,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997739785] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:03,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 11:56:03,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-18 11:56:03,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075813131] [2022-01-18 11:56:03,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:03,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:56:03,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:03,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:56:03,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:56:03,852 INFO L87 Difference]: Start difference. First operand 562 states and 1346 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-01-18 11:56:03,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:03,938 INFO L93 Difference]: Finished difference Result 546 states and 1320 transitions. [2022-01-18 11:56:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:56:03,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-18 11:56:03,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:03,940 INFO L225 Difference]: With dead ends: 546 [2022-01-18 11:56:03,940 INFO L226 Difference]: Without dead ends: 546 [2022-01-18 11:56:03,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-18 11:56:03,943 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 130 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:03,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 278 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:56:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-01-18 11:56:03,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 514. [2022-01-18 11:56:03,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 513 states have (on average 2.401559454191033) internal successors, (1232), 513 states have internal predecessors, (1232), 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) [2022-01-18 11:56:03,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 1232 transitions. [2022-01-18 11:56:03,954 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 1232 transitions. Word has length 92 [2022-01-18 11:56:03,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:03,955 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 1232 transitions. [2022-01-18 11:56:03,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-01-18 11:56:03,956 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 1232 transitions. [2022-01-18 11:56:03,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-18 11:56:03,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:03,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:03,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 11:56:04,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:04,175 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:04,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:04,176 INFO L85 PathProgramCache]: Analyzing trace with hash -161553230, now seen corresponding path program 1 times [2022-01-18 11:56:04,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:04,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301988446] [2022-01-18 11:56:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:04,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:04,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:04,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301988446] [2022-01-18 11:56:04,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301988446] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:04,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319888465] [2022-01-18 11:56:04,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:04,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:04,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:04,246 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) [2022-01-18 11:56:04,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 11:56:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:04,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 11:56:04,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:04,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:04,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319888465] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:04,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 11:56:04,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-01-18 11:56:04,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373728232] [2022-01-18 11:56:04,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:56:04,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 11:56:04,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:04,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 11:56:04,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:56:04,612 INFO L87 Difference]: Start difference. First operand 514 states and 1232 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-01-18 11:56:04,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:04,662 INFO L93 Difference]: Finished difference Result 557 states and 1348 transitions. [2022-01-18 11:56:04,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 11:56:04,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-18 11:56:04,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:04,665 INFO L225 Difference]: With dead ends: 557 [2022-01-18 11:56:04,665 INFO L226 Difference]: Without dead ends: 557 [2022-01-18 11:56:04,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-18 11:56:04,665 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 178 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:04,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 256 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:56:04,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-01-18 11:56:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2022-01-18 11:56:04,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 556 states have (on average 2.4244604316546763) internal successors, (1348), 556 states have internal predecessors, (1348), 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) [2022-01-18 11:56:04,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1348 transitions. [2022-01-18 11:56:04,675 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1348 transitions. Word has length 92 [2022-01-18 11:56:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:04,675 INFO L470 AbstractCegarLoop]: Abstraction has 557 states and 1348 transitions. [2022-01-18 11:56:04,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-01-18 11:56:04,675 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1348 transitions. [2022-01-18 11:56:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 11:56:04,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:04,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:04,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 11:56:04,885 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,SelfDestructingSolverStorable5 [2022-01-18 11:56:04,886 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:04,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:04,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1927231748, now seen corresponding path program 1 times [2022-01-18 11:56:04,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:04,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297470633] [2022-01-18 11:56:04,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:04,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:05,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:05,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297470633] [2022-01-18 11:56:05,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297470633] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:05,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040968153] [2022-01-18 11:56:05,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:05,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:05,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:05,148 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) [2022-01-18 11:56:05,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 11:56:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:05,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 59 conjunts are in the unsatisfiable core [2022-01-18 11:56:05,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:05,266 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:56:05,342 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:56:05,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:56:05,524 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 11:56:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:05,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:05,675 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_114 (Array Int Int))) (= (+ c_~counter~0 (* (- 1) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_114) c_~A~0.base) c_~A~0.offset))) 0)) is different from false [2022-01-18 11:56:05,732 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:56:05,732 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 40 [2022-01-18 11:56:05,735 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-01-18 11:56:06,230 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 11:56:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:06,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040968153] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:56:06,247 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:56:06,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 27 [2022-01-18 11:56:06,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396987633] [2022-01-18 11:56:06,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:56:06,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:56:06,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:06,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:56:06,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=569, Unknown=1, NotChecked=48, Total=702 [2022-01-18 11:56:06,249 INFO L87 Difference]: Start difference. First operand 557 states and 1348 transitions. Second operand has 27 states, 27 states have (on average 5.814814814814815) internal successors, (157), 27 states have internal predecessors, (157), 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) [2022-01-18 11:56:06,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:06,861 INFO L93 Difference]: Finished difference Result 1022 states and 2551 transitions. [2022-01-18 11:56:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:56:06,862 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.814814814814815) internal successors, (157), 27 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 11:56:06,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:06,865 INFO L225 Difference]: With dead ends: 1022 [2022-01-18 11:56:06,865 INFO L226 Difference]: Without dead ends: 971 [2022-01-18 11:56:06,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 181 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=260, Invalid=1465, Unknown=1, NotChecked=80, Total=1806 [2022-01-18 11:56:06,866 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 328 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 177 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:06,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 1697 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 634 Invalid, 0 Unknown, 177 Unchecked, 0.3s Time] [2022-01-18 11:56:06,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-01-18 11:56:06,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 863. [2022-01-18 11:56:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 862 states have (on average 2.491879350348028) internal successors, (2148), 862 states have internal predecessors, (2148), 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) [2022-01-18 11:56:06,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 2148 transitions. [2022-01-18 11:56:06,882 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 2148 transitions. Word has length 97 [2022-01-18 11:56:06,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:06,883 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 2148 transitions. [2022-01-18 11:56:06,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.814814814814815) internal successors, (157), 27 states have internal predecessors, (157), 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) [2022-01-18 11:56:06,883 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 2148 transitions. [2022-01-18 11:56:06,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 11:56:06,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:06,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:06,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 11:56:07,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:07,104 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:07,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1540215068, now seen corresponding path program 2 times [2022-01-18 11:56:07,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004290459] [2022-01-18 11:56:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:07,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:07,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:07,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004290459] [2022-01-18 11:56:07,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004290459] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:07,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816916017] [2022-01-18 11:56:07,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:56:07,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:07,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:07,435 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) [2022-01-18 11:56:07,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 11:56:07,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:56:07,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:56:07,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-18 11:56:07,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:07,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:07,951 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:56:07,951 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2022-01-18 11:56:08,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:08,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816916017] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:56:08,083 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:56:08,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 8] total 27 [2022-01-18 11:56:08,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135711752] [2022-01-18 11:56:08,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:56:08,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 11:56:08,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:08,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 11:56:08,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:56:08,085 INFO L87 Difference]: Start difference. First operand 863 states and 2148 transitions. Second operand has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 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) [2022-01-18 11:56:08,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:08,564 INFO L93 Difference]: Finished difference Result 1234 states and 3131 transitions. [2022-01-18 11:56:08,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:56:08,564 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 11:56:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:08,568 INFO L225 Difference]: With dead ends: 1234 [2022-01-18 11:56:08,569 INFO L226 Difference]: Without dead ends: 1183 [2022-01-18 11:56:08,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 187 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=233, Invalid=1249, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:56:08,570 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 284 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:08,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1418 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:56:08,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-01-18 11:56:08,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 935. [2022-01-18 11:56:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 2.5117773019271947) internal successors, (2346), 934 states have internal predecessors, (2346), 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) [2022-01-18 11:56:08,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 2346 transitions. [2022-01-18 11:56:08,588 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 2346 transitions. Word has length 97 [2022-01-18 11:56:08,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:08,589 INFO L470 AbstractCegarLoop]: Abstraction has 935 states and 2346 transitions. [2022-01-18 11:56:08,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 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) [2022-01-18 11:56:08,589 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 2346 transitions. [2022-01-18 11:56:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 11:56:08,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:08,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:08,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-18 11:56:08,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:08,807 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:08,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:08,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1582262424, now seen corresponding path program 3 times [2022-01-18 11:56:08,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:08,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82108205] [2022-01-18 11:56:08,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:08,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:09,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:09,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:09,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82108205] [2022-01-18 11:56:09,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82108205] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:09,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030879435] [2022-01-18 11:56:09,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:56:09,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:09,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:09,027 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) [2022-01-18 11:56:09,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 11:56:09,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 11:56:09,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:56:09,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 45 conjunts are in the unsatisfiable core [2022-01-18 11:56:09,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:09,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:09,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:09,457 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:56:09,457 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2022-01-18 11:56:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:09,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030879435] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:56:09,579 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:56:09,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 8] total 19 [2022-01-18 11:56:09,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509049872] [2022-01-18 11:56:09,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:56:09,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 11:56:09,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:09,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 11:56:09,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 11:56:09,581 INFO L87 Difference]: Start difference. First operand 935 states and 2346 transitions. Second operand has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 19 states have internal predecessors, (144), 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) [2022-01-18 11:56:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:09,902 INFO L93 Difference]: Finished difference Result 1489 states and 3832 transitions. [2022-01-18 11:56:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 11:56:09,902 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 19 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 11:56:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:09,907 INFO L225 Difference]: With dead ends: 1489 [2022-01-18 11:56:09,907 INFO L226 Difference]: Without dead ends: 1438 [2022-01-18 11:56:09,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=780, Unknown=0, NotChecked=0, Total=930 [2022-01-18 11:56:09,908 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 199 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:09,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 1481 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:56:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2022-01-18 11:56:09,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 947. [2022-01-18 11:56:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 946 states have (on average 2.514799154334038) internal successors, (2379), 946 states have internal predecessors, (2379), 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) [2022-01-18 11:56:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 2379 transitions. [2022-01-18 11:56:09,952 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 2379 transitions. Word has length 97 [2022-01-18 11:56:09,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:09,953 INFO L470 AbstractCegarLoop]: Abstraction has 947 states and 2379 transitions. [2022-01-18 11:56:09,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 19 states have internal predecessors, (144), 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) [2022-01-18 11:56:09,953 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 2379 transitions. [2022-01-18 11:56:09,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-18 11:56:09,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:09,956 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:09,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 11:56:10,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:10,173 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:10,174 INFO L85 PathProgramCache]: Analyzing trace with hash -757255412, now seen corresponding path program 4 times [2022-01-18 11:56:10,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:10,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108821489] [2022-01-18 11:56:10,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:10,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:10,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:10,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108821489] [2022-01-18 11:56:10,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108821489] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:10,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620718425] [2022-01-18 11:56:10,266 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 11:56:10,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:10,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:10,267 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) [2022-01-18 11:56:10,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 11:56:10,322 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 11:56:10,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:56:10,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 11:56:10,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:10,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:10,798 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 11:56:10,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620718425] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:56:10,798 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:56:10,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-01-18 11:56:10,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148019094] [2022-01-18 11:56:10,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:56:10,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:56:10,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:10,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:56:10,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:56:10,799 INFO L87 Difference]: Start difference. First operand 947 states and 2379 transitions. Second operand has 24 states, 24 states have (on average 7.041666666666667) internal successors, (169), 24 states have internal predecessors, (169), 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) [2022-01-18 11:56:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:11,046 INFO L93 Difference]: Finished difference Result 1766 states and 4423 transitions. [2022-01-18 11:56:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:56:11,047 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.041666666666667) internal successors, (169), 24 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-18 11:56:11,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:11,052 INFO L225 Difference]: With dead ends: 1766 [2022-01-18 11:56:11,052 INFO L226 Difference]: Without dead ends: 1682 [2022-01-18 11:56:11,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:56:11,053 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 759 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:11,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 1227 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:56:11,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2022-01-18 11:56:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1425. [2022-01-18 11:56:11,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1424 states have (on average 2.552668539325843) internal successors, (3635), 1424 states have internal predecessors, (3635), 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) [2022-01-18 11:56:11,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 3635 transitions. [2022-01-18 11:56:11,085 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 3635 transitions. Word has length 102 [2022-01-18 11:56:11,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:11,085 INFO L470 AbstractCegarLoop]: Abstraction has 1425 states and 3635 transitions. [2022-01-18 11:56:11,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.041666666666667) internal successors, (169), 24 states have internal predecessors, (169), 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) [2022-01-18 11:56:11,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 3635 transitions. [2022-01-18 11:56:11,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-18 11:56:11,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:11,088 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:11,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 11:56:11,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:11,303 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:11,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:11,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1453275150, now seen corresponding path program 5 times [2022-01-18 11:56:11,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:11,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728014018] [2022-01-18 11:56:11,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:11,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:11,386 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:11,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:11,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728014018] [2022-01-18 11:56:11,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728014018] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:11,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49716509] [2022-01-18 11:56:11,387 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 11:56:11,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:11,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:11,388 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) [2022-01-18 11:56:11,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 11:56:11,471 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-01-18 11:56:11,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:56:11,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 11:56:11,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:11,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:11,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49716509] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:56:11,882 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:56:11,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-01-18 11:56:11,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849629326] [2022-01-18 11:56:11,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:56:11,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:56:11,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:11,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:56:11,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:56:11,884 INFO L87 Difference]: Start difference. First operand 1425 states and 3635 transitions. Second operand has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 24 states have internal predecessors, (151), 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) [2022-01-18 11:56:12,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:12,167 INFO L93 Difference]: Finished difference Result 1329 states and 3256 transitions. [2022-01-18 11:56:12,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:56:12,168 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 24 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-18 11:56:12,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:12,171 INFO L225 Difference]: With dead ends: 1329 [2022-01-18 11:56:12,171 INFO L226 Difference]: Without dead ends: 959 [2022-01-18 11:56:12,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:56:12,172 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 762 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:12,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [762 Valid, 1042 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:56:12,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-01-18 11:56:12,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 954. [2022-01-18 11:56:12,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 953 states have (on average 2.503672612801679) internal successors, (2386), 953 states have internal predecessors, (2386), 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) [2022-01-18 11:56:12,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 2386 transitions. [2022-01-18 11:56:12,186 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 2386 transitions. Word has length 102 [2022-01-18 11:56:12,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:12,186 INFO L470 AbstractCegarLoop]: Abstraction has 954 states and 2386 transitions. [2022-01-18 11:56:12,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 24 states have internal predecessors, (151), 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) [2022-01-18 11:56:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 2386 transitions. [2022-01-18 11:56:12,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:56:12,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:12,188 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:12,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 11:56:12,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:12,403 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:12,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:12,404 INFO L85 PathProgramCache]: Analyzing trace with hash -960110397, now seen corresponding path program 6 times [2022-01-18 11:56:12,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:12,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137291604] [2022-01-18 11:56:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:12,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 11:56:12,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:12,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137291604] [2022-01-18 11:56:12,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137291604] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:12,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442923446] [2022-01-18 11:56:12,480 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 11:56:12,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:12,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:12,481 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) [2022-01-18 11:56:12,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 11:56:12,561 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-01-18 11:56:12,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:56:12,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 11:56:12,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:12,743 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:56:12,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:56:12,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442923446] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:56:12,854 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:56:12,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 22 [2022-01-18 11:56:12,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832844811] [2022-01-18 11:56:12,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:56:12,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 11:56:12,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:12,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 11:56:12,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:56:12,856 INFO L87 Difference]: Start difference. First operand 954 states and 2386 transitions. Second operand has 22 states, 22 states have (on average 8.363636363636363) internal successors, (184), 22 states have internal predecessors, (184), 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) [2022-01-18 11:56:14,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:14,210 INFO L93 Difference]: Finished difference Result 1508 states and 3804 transitions. [2022-01-18 11:56:14,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:56:14,211 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.363636363636363) internal successors, (184), 22 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:56:14,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:14,216 INFO L225 Difference]: With dead ends: 1508 [2022-01-18 11:56:14,216 INFO L226 Difference]: Without dead ends: 1508 [2022-01-18 11:56:14,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1028, Invalid=3528, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 11:56:14,218 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 757 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:14,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [757 Valid, 2173 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 11:56:14,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-01-18 11:56:14,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 779. [2022-01-18 11:56:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 778 states have (on average 2.487146529562982) internal successors, (1935), 778 states have internal predecessors, (1935), 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) [2022-01-18 11:56:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1935 transitions. [2022-01-18 11:56:14,237 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1935 transitions. Word has length 109 [2022-01-18 11:56:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:14,237 INFO L470 AbstractCegarLoop]: Abstraction has 779 states and 1935 transitions. [2022-01-18 11:56:14,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.363636363636363) internal successors, (184), 22 states have internal predecessors, (184), 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) [2022-01-18 11:56:14,237 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1935 transitions. [2022-01-18 11:56:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:56:14,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:14,239 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:14,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 11:56:14,455 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,SelfDestructingSolverStorable11 [2022-01-18 11:56:14,456 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:14,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:14,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1656130135, now seen corresponding path program 7 times [2022-01-18 11:56:14,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:14,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411973078] [2022-01-18 11:56:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:14,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 11:56:14,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:14,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411973078] [2022-01-18 11:56:14,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411973078] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:14,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992169064] [2022-01-18 11:56:14,539 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 11:56:14,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:14,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:14,540 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) [2022-01-18 11:56:14,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 11:56:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:14,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-18 11:56:14,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 11:56:14,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 11:56:15,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992169064] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:56:15,135 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:56:15,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-01-18 11:56:15,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656646556] [2022-01-18 11:56:15,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:56:15,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 11:56:15,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:15,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 11:56:15,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:56:15,136 INFO L87 Difference]: Start difference. First operand 779 states and 1935 transitions. Second operand has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 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) [2022-01-18 11:56:15,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:15,406 INFO L93 Difference]: Finished difference Result 1307 states and 3351 transitions. [2022-01-18 11:56:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 11:56:15,406 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:56:15,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:15,410 INFO L225 Difference]: With dead ends: 1307 [2022-01-18 11:56:15,410 INFO L226 Difference]: Without dead ends: 1307 [2022-01-18 11:56:15,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=317, Invalid=943, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:56:15,411 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 462 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:15,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 1083 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:56:15,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2022-01-18 11:56:15,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1109. [2022-01-18 11:56:15,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 1108 states have (on average 2.545126353790614) internal successors, (2820), 1108 states have internal predecessors, (2820), 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) [2022-01-18 11:56:15,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 2820 transitions. [2022-01-18 11:56:15,428 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 2820 transitions. Word has length 109 [2022-01-18 11:56:15,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:15,428 INFO L470 AbstractCegarLoop]: Abstraction has 1109 states and 2820 transitions. [2022-01-18 11:56:15,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.125) internal successors, (171), 24 states have internal predecessors, (171), 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) [2022-01-18 11:56:15,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 2820 transitions. [2022-01-18 11:56:15,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-18 11:56:15,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:15,430 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:15,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 11:56:15,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-18 11:56:15,643 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:15,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:15,644 INFO L85 PathProgramCache]: Analyzing trace with hash 386405767, now seen corresponding path program 8 times [2022-01-18 11:56:15,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:15,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71896524] [2022-01-18 11:56:15,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:15,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:56:16,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:16,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71896524] [2022-01-18 11:56:16,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71896524] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:16,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126470233] [2022-01-18 11:56:16,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 11:56:16,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:16,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:16,012 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) [2022-01-18 11:56:16,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 11:56:16,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 11:56:16,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:56:16,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 84 conjunts are in the unsatisfiable core [2022-01-18 11:56:16,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:16,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 11:56:16,655 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 11:56:16,949 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 11:56:16,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 11:56:17,181 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_295 (Array Int Int))) (= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_295) c_~A~0.base))) (+ (* (- 1) (select .cse0 c_~A~0.offset)) (* (select .cse0 (+ c_~A~0.offset 4)) (- 1)) c_~counter~0 (select .cse0 (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork0_~i~0#1| 4))))) 0)) is different from false [2022-01-18 11:56:17,204 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_295 (Array Int Int))) (= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_295) c_~A~0.base))) (+ (* (- 1) (select .cse0 c_~A~0.offset)) (select .cse0 (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork0_#t~post1#1| 4) 4)) (* (select .cse0 (+ c_~A~0.offset 4)) (- 1)) c_~counter~0)) 0)) is different from false [2022-01-18 11:56:17,209 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_295 (Array Int Int))) (= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_295) c_~A~0.base))) (+ (* (- 1) (select .cse0 c_~A~0.offset)) (* (select .cse0 (+ c_~A~0.offset 4)) (- 1)) (select .cse0 (+ c_~A~0.offset (* |c_thread1Thread1of1ForFork0_~i~0#1| 4) 4)) c_~counter~0)) 0)) is different from false [2022-01-18 11:56:17,240 INFO L353 Elim1Store]: treesize reduction 39, result has 52.4 percent of original size [2022-01-18 11:56:17,240 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 89 [2022-01-18 11:56:17,256 INFO L353 Elim1Store]: treesize reduction 16, result has 59.0 percent of original size [2022-01-18 11:56:17,257 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2022-01-18 11:56:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 2 not checked. [2022-01-18 11:56:17,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126470233] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 11:56:17,738 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 11:56:17,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 50 [2022-01-18 11:56:17,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957779097] [2022-01-18 11:56:17,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 11:56:17,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-01-18 11:56:17,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:56:17,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-01-18 11:56:17,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=2007, Unknown=3, NotChecked=276, Total=2450 [2022-01-18 11:56:17,740 INFO L87 Difference]: Start difference. First operand 1109 states and 2820 transitions. Second operand has 50 states, 50 states have (on average 4.96) internal successors, (248), 50 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) [2022-01-18 11:56:19,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:56:19,090 INFO L93 Difference]: Finished difference Result 1762 states and 4579 transitions. [2022-01-18 11:56:19,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:56:19,090 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.96) internal successors, (248), 50 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) Word has length 114 [2022-01-18 11:56:19,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:56:19,096 INFO L225 Difference]: With dead ends: 1762 [2022-01-18 11:56:19,096 INFO L226 Difference]: Without dead ends: 1711 [2022-01-18 11:56:19,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 198 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=4028, Unknown=3, NotChecked=396, Total=4830 [2022-01-18 11:56:19,097 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 374 mSDsluCounter, 4163 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 4122 SdHoareTripleChecker+Invalid, 3007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 655 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:56:19,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 4122 Invalid, 3007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2335 Invalid, 0 Unknown, 655 Unchecked, 0.8s Time] [2022-01-18 11:56:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2022-01-18 11:56:19,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1327. [2022-01-18 11:56:19,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1326 states have (on average 2.605580693815988) internal successors, (3455), 1326 states have internal predecessors, (3455), 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) [2022-01-18 11:56:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 3455 transitions. [2022-01-18 11:56:19,119 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 3455 transitions. Word has length 114 [2022-01-18 11:56:19,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:56:19,120 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 3455 transitions. [2022-01-18 11:56:19,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.96) internal successors, (248), 50 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) [2022-01-18 11:56:19,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 3455 transitions. [2022-01-18 11:56:19,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-18 11:56:19,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:56:19,122 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:56:19,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 11:56:19,339 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,SelfDestructingSolverStorable13 [2022-01-18 11:56:19,339 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:56:19,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:56:19,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1300173713, now seen corresponding path program 9 times [2022-01-18 11:56:19,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:56:19,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900552163] [2022-01-18 11:56:19,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:56:19,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:56:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:56:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:56:20,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:56:20,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900552163] [2022-01-18 11:56:20,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900552163] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 11:56:20,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843560328] [2022-01-18 11:56:20,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 11:56:20,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 11:56:20,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:56:20,069 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) [2022-01-18 11:56:20,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 11:56:20,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-18 11:56:20,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 11:56:20,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 110 conjunts are in the unsatisfiable core [2022-01-18 11:56:20,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 11:56:20,194 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:56:20,424 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 11:56:20,424 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 11:56:20,745 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 11:56:21,106 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 11:56:21,380 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 11:56:21,704 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 11:56:21,704 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 16 Received shutdown request... [2022-01-18 12:09:23,429 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 12:09:23,431 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 12:09:23,443 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 12:09:23,443 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 12:09:23,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 12:09:23,631 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,SelfDestructingSolverStorable14 [2022-01-18 12:09:23,632 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 5ms.. [2022-01-18 12:09:23,633 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 12:09:23,633 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 12:09:23,635 INFO L732 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:23,637 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 12:09:23,637 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 12:09:23,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 12:09:23 BasicIcfg [2022-01-18 12:09:23,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 12:09:23,638 INFO L158 Benchmark]: Toolchain (without parser) took 802444.96ms. Allocated memory was 425.7MB in the beginning and 702.5MB in the end (delta: 276.8MB). Free memory was 371.4MB in the beginning and 343.5MB in the end (delta: 27.8MB). Peak memory consumption was 423.6MB. Max. memory is 16.0GB. [2022-01-18 12:09:23,639 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 425.7MB. Free memory is still 387.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 12:09:23,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.01ms. Allocated memory was 425.7MB in the beginning and 585.1MB in the end (delta: 159.4MB). Free memory was 371.2MB in the beginning and 556.3MB in the end (delta: -185.1MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. [2022-01-18 12:09:23,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.95ms. Allocated memory is still 585.1MB. Free memory was 556.3MB in the beginning and 554.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 12:09:23,639 INFO L158 Benchmark]: Boogie Preprocessor took 17.80ms. Allocated memory is still 585.1MB. Free memory was 554.2MB in the beginning and 553.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 12:09:23,639 INFO L158 Benchmark]: RCFGBuilder took 446.64ms. Allocated memory is still 585.1MB. Free memory was 553.2MB in the beginning and 530.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2022-01-18 12:09:23,639 INFO L158 Benchmark]: TraceAbstraction took 801736.15ms. Allocated memory was 585.1MB in the beginning and 702.5MB in the end (delta: 117.4MB). Free memory was 529.1MB in the beginning and 343.5MB in the end (delta: 185.5MB). Peak memory consumption was 422.3MB. Max. memory is 16.0GB. [2022-01-18 12:09:23,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 425.7MB. Free memory is still 387.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 206.01ms. Allocated memory was 425.7MB in the beginning and 585.1MB in the end (delta: 159.4MB). Free memory was 371.2MB in the beginning and 556.3MB in the end (delta: -185.1MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.95ms. Allocated memory is still 585.1MB. Free memory was 556.3MB in the beginning and 554.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.80ms. Allocated memory is still 585.1MB. Free memory was 554.2MB in the beginning and 553.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 446.64ms. Allocated memory is still 585.1MB. Free memory was 553.2MB in the beginning and 530.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 801736.15ms. Allocated memory was 585.1MB in the beginning and 702.5MB in the end (delta: 117.4MB). Free memory was 529.1MB in the beginning and 343.5MB in the end (delta: 185.5MB). Peak memory consumption was 422.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 5ms.. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 5ms.. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 5ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 129 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 801.6s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4758 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4758 mSDsluCounter, 15767 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 832 IncrementalHoareTripleChecker+Unchecked, 15035 mSDsCounter, 149 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6523 IncrementalHoareTripleChecker+Invalid, 7504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 149 mSolverCounterUnsat, 1565 mSDtfsCounter, 6523 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2332 GetRequests, 1908 SyntacticMatches, 28 SemanticMatches, 396 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 4132 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1425occurred in iteration=10, InterpolantAutomatonStates: 232, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 2653 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 2352 NumberOfCodeBlocks, 2342 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 3329 ConstructedInterpolants, 35 QuantifiedInterpolants, 15608 SizeOfPredicates, 164 NumberOfNonLiveVariables, 2621 ConjunctsInSsa, 283 ConjunctsInUnsatCore, 34 InterpolantComputations, 6 PerfectInterpolantSequences, 160/266 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown