/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 09:39:59,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 09:39:59,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 09:39:59,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 09:39:59,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 09:39:59,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 09:39:59,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 09:39:59,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 09:39:59,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 09:39:59,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 09:39:59,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 09:39:59,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 09:39:59,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 09:39:59,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 09:39:59,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 09:39:59,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 09:39:59,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 09:39:59,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 09:39:59,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 09:39:59,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 09:39:59,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 09:39:59,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 09:39:59,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 09:39:59,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 09:39:59,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-16 09:39:59,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-16 09:39:59,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-16 09:39:59,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-16 09:39:59,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-16 09:39:59,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-16 09:39:59,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-16 09:39:59,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-16 09:39:59,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-16 09:39:59,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-16 09:39:59,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-16 09:39:59,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-16 09:39:59,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-16 09:39:59,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-16 09:39:59,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 09:39:59,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 09:39:59,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 09:39:59,581 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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-16 09:39:59,604 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 09:39:59,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 09:39:59,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 09:39:59,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 09:39:59,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 09:39:59,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 09:39:59,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 09:39:59,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 09:39:59,605 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 09:39:59,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 09:39:59,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 09:39:59,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 09:39:59,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 09:39:59,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 09:39:59,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 09:39:59,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 09:39:59,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 09:39:59,609 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 09:39:59,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 09:39:59,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 09:39:59,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 09:39:59,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 09:39:59,610 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 09:39:59,610 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 09:39:59,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 09:39:59,610 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 09:39:59,611 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 09:39:59,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 09:39:59,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 09:39:59,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 09:39:59,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 09:39:59,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 09:39:59,813 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 09:39:59,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2022-03-16 09:39:59,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5369bc9/7e53493a70b0407e91903b8e837f674f/FLAG873ca5830 [2022-03-16 09:40:00,241 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 09:40:00,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-queue-add-2.wvr.c [2022-03-16 09:40:00,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5369bc9/7e53493a70b0407e91903b8e837f674f/FLAG873ca5830 [2022-03-16 09:40:00,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5369bc9/7e53493a70b0407e91903b8e837f674f [2022-03-16 09:40:00,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 09:40:00,263 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 09:40:00,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 09:40:00,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 09:40:00,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 09:40:00,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f7f69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00, skipping insertion in model container [2022-03-16 09:40:00,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 09:40:00,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 09:40:00,440 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-queue-add-2.wvr.c[2696,2709] [2022-03-16 09:40:00,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 09:40:00,449 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 09:40:00,462 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-queue-add-2.wvr.c[2696,2709] [2022-03-16 09:40:00,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 09:40:00,473 INFO L208 MainTranslator]: Completed translation [2022-03-16 09:40:00,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00 WrapperNode [2022-03-16 09:40:00,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 09:40:00,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 09:40:00,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 09:40:00,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 09:40:00,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,499 INFO L137 Inliner]: procedures = 24, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 154 [2022-03-16 09:40:00,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 09:40:00,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 09:40:00,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 09:40:00,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 09:40:00,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 09:40:00,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 09:40:00,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 09:40:00,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 09:40:00,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (1/1) ... [2022-03-16 09:40:00,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 09:40:00,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:00,553 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) [2022-03-16 09:40:00,554 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 [2022-03-16 09:40:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-16 09:40:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 09:40:00,577 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 09:40:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 09:40:00,577 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 09:40:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-16 09:40:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 09:40:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 09:40:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-16 09:40:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-16 09:40:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-16 09:40:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 09:40:00,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 09:40:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-16 09:40:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 09:40:00,579 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 09:40:00,666 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 09:40:00,668 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 09:40:00,909 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 09:40:00,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 09:40:00,997 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-16 09:40:00,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 09:40:00 BoogieIcfgContainer [2022-03-16 09:40:01,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 09:40:01,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 09:40:01,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 09:40:01,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 09:40:01,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 09:40:00" (1/3) ... [2022-03-16 09:40:01,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2061c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:40:01, skipping insertion in model container [2022-03-16 09:40:01,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:40:00" (2/3) ... [2022-03-16 09:40:01,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2061c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:40:01, skipping insertion in model container [2022-03-16 09:40:01,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 09:40:00" (3/3) ... [2022-03-16 09:40:01,008 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-2.wvr.c [2022-03-16 09:40:01,012 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 09:40:01,013 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 09:40:01,013 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 09:40:01,013 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 09:40:01,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,058 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,061 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,062 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,063 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,064 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,065 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,075 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,075 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,076 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:40:01,080 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 09:40:01,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 09:40:01,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:01,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 09:40:01,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 09:40:01,138 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 09:40:01,142 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-16 09:40:01,143 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 09:40:01,218 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 132 transitions and produced 133 states. [2022-03-16 09:40:01,220 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:01,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:01,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1011606986, now seen corresponding path program 1 times [2022-03-16 09:40:01,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:01,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390305653] [2022-03-16 09:40:01,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:01,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:01,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:01,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390305653] [2022-03-16 09:40:01,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390305653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:40:01,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 09:40:01,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-16 09:40:01,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593442195] [2022-03-16 09:40:01,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:40:01,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-16 09:40:01,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:01,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-16 09:40:01,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-16 09:40:01,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:01,428 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:01,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 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) [2022-03-16 09:40:01,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:01,474 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 139 transitions and produced 140 states. [2022-03-16 09:40:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:01,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 09:40:01,475 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:01,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:01,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1218853137, now seen corresponding path program 1 times [2022-03-16 09:40:01,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:01,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950436334] [2022-03-16 09:40:01,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:01,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:01,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:01,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950436334] [2022-03-16 09:40:01,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950436334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:40:01,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 09:40:01,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-16 09:40:01,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315812535] [2022-03-16 09:40:01,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:40:01,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-16 09:40:01,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:01,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-16 09:40:01,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-16 09:40:01,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:01,668 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:01,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2022-03-16 09:40:01,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:01,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:01,804 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 413 transitions and produced 315 states. [2022-03-16 09:40:01,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:01,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:01,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 09:40:01,806 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:01,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash 104131064, now seen corresponding path program 1 times [2022-03-16 09:40:01,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:01,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586202959] [2022-03-16 09:40:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:01,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-16 09:40:02,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:02,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586202959] [2022-03-16 09:40:02,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586202959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:40:02,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 09:40:02,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-16 09:40:02,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305879046] [2022-03-16 09:40:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:40:02,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-16 09:40:02,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:02,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-16 09:40:02,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-03-16 09:40:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:02,072 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:02,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 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) [2022-03-16 09:40:02,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:02,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:02,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:02,249 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 450 transitions and produced 346 states. [2022-03-16 09:40:02,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:02,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-16 09:40:02,250 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:02,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1776484924, now seen corresponding path program 1 times [2022-03-16 09:40:02,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:02,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583226502] [2022-03-16 09:40:02,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:02,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:02,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:02,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583226502] [2022-03-16 09:40:02,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583226502] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:40:02,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288124061] [2022-03-16 09:40:02,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:02,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:02,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:02,441 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) [2022-03-16 09:40:02,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 09:40:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:02,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-16 09:40:02,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:40:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-16 09:40:02,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-16 09:40:02,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288124061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:40:02,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-16 09:40:02,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 12 [2022-03-16 09:40:02,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908103426] [2022-03-16 09:40:02,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:40:02,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-16 09:40:02,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:02,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-16 09:40:02,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-16 09:40:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:02,779 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:02,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 09:40:02,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:02,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:02,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:02,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:02,842 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 576 transitions and produced 416 states. [2022-03-16 09:40:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:02,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:02,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 09:40:03,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-03-16 09:40:03,056 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:03,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:03,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1428081175, now seen corresponding path program 1 times [2022-03-16 09:40:03,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:03,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882865059] [2022-03-16 09:40:03,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:03,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:03,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:03,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882865059] [2022-03-16 09:40:03,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882865059] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:40:03,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389390282] [2022-03-16 09:40:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:03,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:03,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:03,172 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) [2022-03-16 09:40:03,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 09:40:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:03,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-16 09:40:03,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:40:03,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:03,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:40:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:03,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389390282] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:40:03,837 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:40:03,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-03-16 09:40:03,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929006103] [2022-03-16 09:40:03,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:40:03,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-16 09:40:03,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:03,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-16 09:40:03,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-03-16 09:40:03,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:03,839 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:03,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.473684210526315) internal successors, (161), 19 states have internal predecessors, (161), 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) [2022-03-16 09:40:03,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:03,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:03,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:03,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:03,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:04,135 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3493 transitions and produced 1853 states. [2022-03-16 09:40:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:04,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 09:40:04,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:04,354 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:04,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:04,354 INFO L85 PathProgramCache]: Analyzing trace with hash 2147002272, now seen corresponding path program 2 times [2022-03-16 09:40:04,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:04,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896396421] [2022-03-16 09:40:04,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:04,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:05,077 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:05,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:05,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896396421] [2022-03-16 09:40:05,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896396421] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:40:05,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685955976] [2022-03-16 09:40:05,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 09:40:05,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:05,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:05,081 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) [2022-03-16 09:40:05,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 09:40:05,154 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 09:40:05,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:40:05,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 40 conjunts are in the unsatisfiable core [2022-03-16 09:40:05,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:40:06,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 09:40:06,236 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:40:06,237 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 21 treesize of output 10 [2022-03-16 09:40:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:06,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:40:06,466 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-16 09:40:06,467 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 25 treesize of output 16 [2022-03-16 09:40:07,622 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:07,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685955976] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:40:07,623 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:40:07,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19, 14] total 49 [2022-03-16 09:40:07,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13795820] [2022-03-16 09:40:07,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:40:07,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-16 09:40:07,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:07,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-16 09:40:07,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=2035, Unknown=0, NotChecked=0, Total=2352 [2022-03-16 09:40:07,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:07,625 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:07,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.448979591836735) internal successors, (267), 49 states have internal predecessors, (267), 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) [2022-03-16 09:40:07,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:07,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:07,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:07,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:07,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:07,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:10,568 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3306 transitions and produced 1816 states. [2022-03-16 09:40:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-16 09:40:10,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 09:40:10,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:10,771 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:10,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:10,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1161843740, now seen corresponding path program 1 times [2022-03-16 09:40:10,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:10,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582142059] [2022-03-16 09:40:10,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:10,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:11,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:11,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582142059] [2022-03-16 09:40:11,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582142059] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:40:11,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206468401] [2022-03-16 09:40:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:11,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:11,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:11,606 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) [2022-03-16 09:40:11,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 09:40:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:11,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-16 09:40:11,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:40:13,000 INFO L353 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-03-16 09:40:13,000 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 10 [2022-03-16 09:40:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:13,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:40:13,628 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:40:13,628 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 51 treesize of output 35 [2022-03-16 09:40:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:14,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206468401] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:40:14,688 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:40:14,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 25, 25] total 69 [2022-03-16 09:40:14,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123432583] [2022-03-16 09:40:14,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:40:14,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-03-16 09:40:14,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:14,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-03-16 09:40:14,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=510, Invalid=4182, Unknown=0, NotChecked=0, Total=4692 [2022-03-16 09:40:14,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:14,694 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:14,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 4.202898550724638) internal successors, (290), 69 states have internal predecessors, (290), 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) [2022-03-16 09:40:14,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:14,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:14,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:14,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:14,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:14,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-16 09:40:14,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:19,106 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2049 transitions and produced 1249 states. [2022-03-16 09:40:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-16 09:40:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-16 09:40:19,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 09:40:19,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:19,308 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:19,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:19,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1982000680, now seen corresponding path program 2 times [2022-03-16 09:40:19,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:19,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814772399] [2022-03-16 09:40:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:19,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-16 09:40:19,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:19,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814772399] [2022-03-16 09:40:19,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814772399] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:40:19,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779977378] [2022-03-16 09:40:19,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 09:40:19,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:19,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:19,367 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) [2022-03-16 09:40:19,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 09:40:19,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 09:40:19,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:40:19,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-16 09:40:19,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:40:19,605 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-16 09:40:19,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:40:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-16 09:40:19,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779977378] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:40:19,911 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:40:19,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 7] total 10 [2022-03-16 09:40:19,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785861410] [2022-03-16 09:40:19,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:40:19,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-16 09:40:19,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:19,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-16 09:40:19,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-16 09:40:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:19,913 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:19,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.5) internal successors, (195), 10 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 09:40:19,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:19,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:19,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:19,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:19,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:19,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-16 09:40:19,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-03-16 09:40:19,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:20,493 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3739 transitions and produced 2081 states. [2022-03-16 09:40:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 09:40:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-16 09:40:20,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:40:20,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 09:40:20,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:20,697 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:20,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:20,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2052742391, now seen corresponding path program 3 times [2022-03-16 09:40:20,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:20,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778576242] [2022-03-16 09:40:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:20,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-16 09:40:20,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:20,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778576242] [2022-03-16 09:40:20,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778576242] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:40:20,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850148985] [2022-03-16 09:40:20,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 09:40:20,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:20,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:20,831 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) [2022-03-16 09:40:20,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 09:40:20,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-16 09:40:20,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:40:20,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-16 09:40:21,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:40:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 09:40:21,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:40:22,279 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 09:40:22,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850148985] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:40:22,279 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:40:22,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 38 [2022-03-16 09:40:22,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101149905] [2022-03-16 09:40:22,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:40:22,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-16 09:40:22,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:22,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-16 09:40:22,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1145, Unknown=0, NotChecked=0, Total=1406 [2022-03-16 09:40:22,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:22,281 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:22,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.7105263157894735) internal successors, (293), 38 states have internal predecessors, (293), 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) [2022-03-16 09:40:22,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:22,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:22,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:22,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:22,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:22,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-16 09:40:22,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-03-16 09:40:22,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:40:22,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:23,298 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8079 transitions and produced 4145 states. [2022-03-16 09:40:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-16 09:40:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-16 09:40:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:40:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:40:23,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-16 09:40:23,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:23,517 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:23,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1980434766, now seen corresponding path program 3 times [2022-03-16 09:40:23,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:23,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591959261] [2022-03-16 09:40:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:23,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:24,340 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:24,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:24,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591959261] [2022-03-16 09:40:24,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591959261] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:40:24,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019731660] [2022-03-16 09:40:24,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 09:40:24,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:24,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:24,341 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) [2022-03-16 09:40:24,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 09:40:24,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-16 09:40:24,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:40:24,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-16 09:40:24,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:40:24,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 09:40:24,835 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 [2022-03-16 09:40:24,882 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-16 09:40:24,918 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-16 09:40:24,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:40:24,988 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_221 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_221) c_~q~0.base) (+ (* c_~q_front~0 4) c_~q~0.offset)) 0))) is different from false [2022-03-16 09:40:25,000 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:40:25,001 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 45 treesize of output 45 [2022-03-16 09:40:25,010 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 24 treesize of output 18 [2022-03-16 09:40:25,513 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-16 09:40:25,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019731660] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:40:25,514 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:40:25,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12, 12] total 45 [2022-03-16 09:40:25,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9441073] [2022-03-16 09:40:25,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:40:25,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-03-16 09:40:25,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:25,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-03-16 09:40:25,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1778, Unknown=1, NotChecked=84, Total=1980 [2022-03-16 09:40:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:25,515 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:25,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 6.111111111111111) internal successors, (275), 45 states have internal predecessors, (275), 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) [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:40:25,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:30,743 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7694 transitions and produced 4060 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:40:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-16 09:40:30,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 09:40:30,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-16 09:40:30,961 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:30,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:30,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1202878830, now seen corresponding path program 4 times [2022-03-16 09:40:30,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:30,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782266044] [2022-03-16 09:40:30,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:30,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:31,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:31,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782266044] [2022-03-16 09:40:31,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782266044] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:40:31,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874863680] [2022-03-16 09:40:31,928 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 09:40:31,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:31,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:31,929 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) [2022-03-16 09:40:31,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 09:40:32,021 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 09:40:32,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:40:32,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 64 conjunts are in the unsatisfiable core [2022-03-16 09:40:32,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:40:32,050 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 [2022-03-16 09:40:32,299 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-16 09:40:32,299 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 [2022-03-16 09:40:33,345 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 [2022-03-16 09:40:33,921 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-16 09:40:34,113 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:34,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:40:34,522 WARN L838 $PredicateComparison]: unable to prove that (or (not (<= 0 c_~q_back~0)) (not (< c_~q_back~0 c_~n~0)) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0) (and (forall ((v_ArrVal_251 (Array Int Int))) (<= (+ c_~s~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_251) c_~q~0.base) (+ (* c_~q_front~0 4) c_~q~0.offset))) c_~N~0)) (forall ((v_ArrVal_251 (Array Int Int))) (<= c_~N~0 (+ c_~s~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_251) c_~q~0.base) (+ (* c_~q_front~0 4) c_~q~0.offset))))))) is different from false [2022-03-16 09:40:34,543 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:40:34,544 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 82 treesize of output 74 [2022-03-16 09:40:34,547 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 53 treesize of output 47 [2022-03-16 09:40:34,550 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 47 treesize of output 41 [2022-03-16 09:40:36,442 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 [2022-03-16 09:40:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:36,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874863680] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:40:36,462 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:40:36,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 31, 31] total 81 [2022-03-16 09:40:36,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385334637] [2022-03-16 09:40:36,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:40:36,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-03-16 09:40:36,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:36,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-03-16 09:40:36,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=5792, Unknown=1, NotChecked=156, Total=6480 [2022-03-16 09:40:36,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:36,465 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:36,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 3.654320987654321) internal successors, (296), 81 states have internal predecessors, (296), 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) [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-16 09:40:36,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:41,097 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8183 transitions and produced 4330 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-16 09:40:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-16 09:40:41,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 09:40:41,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:41,299 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:41,299 INFO L85 PathProgramCache]: Analyzing trace with hash -279295756, now seen corresponding path program 5 times [2022-03-16 09:40:41,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:41,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800070228] [2022-03-16 09:40:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:41,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:40:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:42,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:40:42,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800070228] [2022-03-16 09:40:42,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800070228] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:40:42,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001089206] [2022-03-16 09:40:42,244 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 09:40:42,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:40:42,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:40:42,246 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) [2022-03-16 09:40:42,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 09:40:42,317 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-16 09:40:42,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:40:42,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 63 conjunts are in the unsatisfiable core [2022-03-16 09:40:42,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:40:42,347 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 [2022-03-16 09:40:42,592 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-16 09:40:42,592 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 [2022-03-16 09:40:43,635 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 [2022-03-16 09:40:43,868 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-16 09:40:43,868 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 23 treesize of output 10 [2022-03-16 09:40:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:44,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:40:44,768 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:40:44,768 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 111 treesize of output 95 [2022-03-16 09:40:44,777 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 67 treesize of output 49 [2022-03-16 09:40:46,825 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 [2022-03-16 09:40:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:40:46,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001089206] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:40:46,847 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:40:46,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32, 32] total 85 [2022-03-16 09:40:46,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973804503] [2022-03-16 09:40:46,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:40:46,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-03-16 09:40:46,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:40:46,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-03-16 09:40:46,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=448, Invalid=6691, Unknown=1, NotChecked=0, Total=7140 [2022-03-16 09:40:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:46,849 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:40:46,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 3.552941176470588) internal successors, (302), 85 states have internal predecessors, (302), 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) [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-16 09:40:46,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:59,541 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7302 transitions and produced 4037 states. [2022-03-16 09:40:59,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:40:59,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:40:59,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:40:59,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:40:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:40:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-16 09:40:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:40:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:40:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-16 09:40:59,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:40:59,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:40:59,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:40:59,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-16 09:40:59,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-16 09:40:59,746 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:40:59,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:40:59,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1716167117, now seen corresponding path program 6 times [2022-03-16 09:40:59,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:40:59,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617229179] [2022-03-16 09:40:59,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:40:59,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:40:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:41:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:41:00,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:41:00,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617229179] [2022-03-16 09:41:00,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617229179] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:41:00,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646903308] [2022-03-16 09:41:00,946 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 09:41:00,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:41:00,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:41:00,947 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) [2022-03-16 09:41:00,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 09:41:01,024 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-16 09:41:01,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:41:01,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-16 09:41:01,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:41:01,655 INFO L353 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-03-16 09:41:01,655 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 10 [2022-03-16 09:41:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:41:01,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:41:02,080 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:41:02,081 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 40 treesize of output 32 [2022-03-16 09:41:02,507 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:41:02,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646903308] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:41:02,507 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:41:02,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 15, 15] total 48 [2022-03-16 09:41:02,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133867586] [2022-03-16 09:41:02,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:41:02,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-16 09:41:02,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:41:02,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-16 09:41:02,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2022-03-16 09:41:02,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:02,509 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:41:02,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.6875) internal successors, (225), 48 states have internal predecessors, (225), 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) [2022-03-16 09:41:02,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:02,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:02,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:02,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:02,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:02,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-16 09:41:02,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:02,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:02,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-16 09:41:02,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:02,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:02,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:02,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:06,886 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3384 transitions and produced 1996 states. [2022-03-16 09:41:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:06,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-16 09:41:06,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 09:41:07,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-16 09:41:07,102 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:41:07,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:41:07,102 INFO L85 PathProgramCache]: Analyzing trace with hash -179534404, now seen corresponding path program 7 times [2022-03-16 09:41:07,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:41:07,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893149587] [2022-03-16 09:41:07,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:41:07,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:41:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:41:07,546 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:41:07,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:41:07,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893149587] [2022-03-16 09:41:07,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893149587] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:41:07,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026318475] [2022-03-16 09:41:07,546 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 09:41:07,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:41:07,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:41:07,547 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:41:07,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-16 09:41:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:41:07,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-16 09:41:07,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:41:08,341 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-16 09:41:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:41:08,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:41:08,534 INFO L353 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-03-16 09:41:08,535 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 26 treesize of output 18 [2022-03-16 09:41:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:41:09,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026318475] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:41:09,294 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:41:09,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 18] total 53 [2022-03-16 09:41:09,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003641307] [2022-03-16 09:41:09,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:41:09,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-03-16 09:41:09,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:41:09,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-03-16 09:41:09,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=2344, Unknown=0, NotChecked=0, Total=2756 [2022-03-16 09:41:09,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:09,296 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:41:09,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.943396226415095) internal successors, (315), 53 states have internal predecessors, (315), 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) [2022-03-16 09:41:09,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:09,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:09,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:09,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:09,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:09,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:41:09,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:09,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:09,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:41:09,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:09,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:09,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:09,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-16 09:41:09,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:13,459 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 13626 transitions and produced 7173 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:41:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 09:41:13,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-16 09:41:13,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-16 09:41:13,660 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:41:13,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:41:13,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2004935680, now seen corresponding path program 8 times [2022-03-16 09:41:13,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:41:13,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230514903] [2022-03-16 09:41:13,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:41:13,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:41:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:41:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:41:15,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:41:15,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230514903] [2022-03-16 09:41:15,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230514903] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:41:15,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122816126] [2022-03-16 09:41:15,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 09:41:15,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:41:15,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:41:15,185 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:41:15,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-16 09:41:15,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 09:41:15,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:41:15,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 84 conjunts are in the unsatisfiable core [2022-03-16 09:41:15,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:41:15,990 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 15 treesize of output 11 [2022-03-16 09:41:16,154 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 15 treesize of output 11 [2022-03-16 09:41:16,567 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 [2022-03-16 09:41:16,644 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 [2022-03-16 09:41:17,550 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-16 09:41:17,551 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 47 treesize of output 13 [2022-03-16 09:41:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:41:17,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:41:21,424 INFO L353 Elim1Store]: treesize reduction 28, result has 54.8 percent of original size [2022-03-16 09:41:21,424 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 260 treesize of output 160 [2022-03-16 09:41:21,484 INFO L353 Elim1Store]: treesize reduction 64, result has 62.1 percent of original size [2022-03-16 09:41:21,484 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 462 treesize of output 498 [2022-03-16 09:41:21,525 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-03-16 09:41:21,525 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 381 treesize of output 341 [2022-03-16 09:41:21,572 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-03-16 09:41:21,572 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 268 treesize of output 274 [2022-03-16 09:41:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 42 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:41:28,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122816126] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:41:28,401 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:41:28,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 41, 39] total 108 [2022-03-16 09:41:28,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537920629] [2022-03-16 09:41:28,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:41:28,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-03-16 09:41:28,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:41:28,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-03-16 09:41:28,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1444, Invalid=10035, Unknown=77, NotChecked=0, Total=11556 [2022-03-16 09:41:28,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:28,405 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:41:28,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 108 states have (on average 3.25) internal successors, (351), 108 states have internal predecessors, (351), 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) [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 09:41:28,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:47,593 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8526 transitions and produced 4725 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:41:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-16 09:41:47,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-03-16 09:41:47,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-03-16 09:41:47,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-16 09:41:47,794 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:41:47,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:41:47,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2016735300, now seen corresponding path program 9 times [2022-03-16 09:41:47,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:41:47,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118327768] [2022-03-16 09:41:47,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:41:47,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:41:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:41:47,859 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:41:47,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:41:47,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118327768] [2022-03-16 09:41:47,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118327768] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:41:47,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673106375] [2022-03-16 09:41:47,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 09:41:47,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:41:47,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:41:47,864 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:41:47,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-16 09:41:48,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-03-16 09:41:48,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:41:48,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-16 09:41:48,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:41:48,393 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:41:48,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:41:48,761 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 14 proven. 17 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:41:48,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673106375] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:41:48,762 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:41:48,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 9] total 13 [2022-03-16 09:41:48,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351558389] [2022-03-16 09:41:48,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:41:48,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-16 09:41:48,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:41:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-16 09:41:48,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-03-16 09:41:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:48,763 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:41:48,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.384615384615383) internal successors, (213), 13 states have internal predecessors, (213), 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) [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:48,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:41:48,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-16 09:41:48,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2022-03-16 09:41:48,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:49,986 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 14220 transitions and produced 7532 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-03-16 09:41:49,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-03-16 09:41:49,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:50,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-16 09:41:50,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:41:50,191 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:41:50,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:41:50,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1946600163, now seen corresponding path program 10 times [2022-03-16 09:41:50,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:41:50,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636256498] [2022-03-16 09:41:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:41:50,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:41:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:41:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 13 proven. 29 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:41:50,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:41:50,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636256498] [2022-03-16 09:41:50,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636256498] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:41:50,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478954658] [2022-03-16 09:41:50,297 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 09:41:50,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:41:50,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:41:50,298 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:41:50,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-16 09:41:50,377 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 09:41:50,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:41:50,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-16 09:41:50,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:41:50,731 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:41:50,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:41:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 5 proven. 37 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:41:51,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478954658] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:41:51,183 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:41:51,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 37 [2022-03-16 09:41:51,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733964197] [2022-03-16 09:41:51,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:41:51,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-16 09:41:51,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:41:51,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-16 09:41:51,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1097, Unknown=0, NotChecked=0, Total=1332 [2022-03-16 09:41:51,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:51,184 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:41:51,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 6.324324324324325) internal successors, (234), 37 states have internal predecessors, (234), 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) [2022-03-16 09:41:51,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:51,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:51,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:51,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:51,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:51,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:51,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:54,039 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 15097 transitions and produced 8028 states. [2022-03-16 09:41:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:41:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:41:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:41:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:41:54,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-16 09:41:54,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-03-16 09:41:54,243 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:41:54,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:41:54,243 INFO L85 PathProgramCache]: Analyzing trace with hash 270995182, now seen corresponding path program 11 times [2022-03-16 09:41:54,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:41:54,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221118492] [2022-03-16 09:41:54,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:41:54,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:41:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:41:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:41:55,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:41:55,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221118492] [2022-03-16 09:41:55,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221118492] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:41:55,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684505801] [2022-03-16 09:41:55,494 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 09:41:55,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:41:55,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:41:55,495 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:41:55,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-16 09:41:55,576 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-03-16 09:41:55,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:41:55,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 66 conjunts are in the unsatisfiable core [2022-03-16 09:41:55,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:41:57,414 INFO L353 Elim1Store]: treesize reduction 50, result has 5.7 percent of original size [2022-03-16 09:41:57,414 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 48 treesize of output 16 [2022-03-16 09:41:57,620 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:41:57,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:41:58,608 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-03-16 09:41:58,608 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 88 treesize of output 81 [2022-03-16 09:42:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:42:00,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684505801] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:42:00,823 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:42:00,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 32, 32] total 91 [2022-03-16 09:42:00,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663808734] [2022-03-16 09:42:00,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:42:00,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-03-16 09:42:00,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:42:00,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-03-16 09:42:00,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=696, Invalid=7494, Unknown=0, NotChecked=0, Total=8190 [2022-03-16 09:42:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:42:00,825 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:42:00,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 3.7142857142857144) internal successors, (338), 91 states have internal predecessors, (338), 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) [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 168 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:42:00,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:42:18,008 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7526 transitions and produced 4256 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:42:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:42:18,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:42:18,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-16 09:42:18,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-16 09:42:18,209 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:42:18,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:42:18,210 INFO L85 PathProgramCache]: Analyzing trace with hash 831004774, now seen corresponding path program 12 times [2022-03-16 09:42:18,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:42:18,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16507652] [2022-03-16 09:42:18,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:42:18,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:42:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:42:19,396 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:42:19,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:42:19,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16507652] [2022-03-16 09:42:19,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16507652] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:42:19,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894155333] [2022-03-16 09:42:19,396 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 09:42:19,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:42:19,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:42:19,397 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:42:19,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-16 09:42:19,487 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-03-16 09:42:19,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:42:19,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 97 conjunts are in the unsatisfiable core [2022-03-16 09:42:19,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:42:20,077 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 15 treesize of output 11 [2022-03-16 09:42:20,256 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 15 treesize of output 11 [2022-03-16 09:42:20,479 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 15 treesize of output 11 [2022-03-16 09:42:21,027 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 [2022-03-16 09:42:21,118 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 [2022-03-16 09:42:22,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 09:42:22,047 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:42:22,047 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 13 [2022-03-16 09:42:22,369 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:42:22,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:42:26,313 INFO L353 Elim1Store]: treesize reduction 132, result has 22.8 percent of original size [2022-03-16 09:42:26,314 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 277 treesize of output 147 [2022-03-16 09:42:26,343 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-03-16 09:42:26,343 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 370 treesize of output 371 [2022-03-16 09:42:26,373 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-03-16 09:42:26,374 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 319 treesize of output 293 [2022-03-16 09:42:26,404 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-03-16 09:42:26,404 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 241 treesize of output 254 [2022-03-16 09:42:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:42:29,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894155333] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:42:29,341 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:42:29,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 40, 39] total 107 [2022-03-16 09:42:29,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391579794] [2022-03-16 09:42:29,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:42:29,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-03-16 09:42:29,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:42:29,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-03-16 09:42:29,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1151, Invalid=10113, Unknown=78, NotChecked=0, Total=11342 [2022-03-16 09:42:29,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:42:29,346 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:42:29,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 3.2803738317757007) internal successors, (351), 107 states have internal predecessors, (351), 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) [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 168 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:42:29,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:42:54,064 WARN L228 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 162 DAG size of output: 105 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:43:07,920 WARN L228 SmtUtils]: Spent 13.56s on a formula simplification. DAG size of input: 215 DAG size of output: 161 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:43:17,749 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 16363 transitions and produced 8245 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:43:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:43:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:43:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:43:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:43:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:43:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:43:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:43:17,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-16 09:43:17,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:43:17,950 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:43:17,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:43:17,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1675132027, now seen corresponding path program 13 times [2022-03-16 09:43:17,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:43:17,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075002601] [2022-03-16 09:43:17,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:43:17,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:43:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:43:19,646 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:43:19,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:43:19,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075002601] [2022-03-16 09:43:19,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075002601] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:43:19,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877914465] [2022-03-16 09:43:19,646 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 09:43:19,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:43:19,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:43:19,648 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:43:19,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-16 09:43:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:43:19,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 67 conjunts are in the unsatisfiable core [2022-03-16 09:43:19,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:43:19,779 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 [2022-03-16 09:43:20,071 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-16 09:43:20,071 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 [2022-03-16 09:43:21,590 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 [2022-03-16 09:43:22,177 INFO L353 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-03-16 09:43:22,177 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 10 [2022-03-16 09:43:22,540 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:43:22,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:43:23,362 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:43:23,362 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 111 treesize of output 95 [2022-03-16 09:43:23,367 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 67 treesize of output 49 [2022-03-16 09:43:26,285 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 [2022-03-16 09:43:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:43:26,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877914465] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:43:26,313 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:43:26,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 86 [2022-03-16 09:43:26,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040629347] [2022-03-16 09:43:26,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:43:26,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-03-16 09:43:26,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:43:26,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-03-16 09:43:26,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=542, Invalid=6766, Unknown=2, NotChecked=0, Total=7310 [2022-03-16 09:43:26,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:43:26,315 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:43:26,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.5) internal successors, (301), 86 states have internal predecessors, (301), 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) [2022-03-16 09:43:26,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:43:26,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:43:26,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:43:26,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:43:26,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:43:26,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:43:26,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:43:26,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:43:26,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:43:26,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:43:37,701 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5058 transitions and produced 2907 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:43:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:43:37,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-03-16 09:43:37,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:43:37,903 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:43:37,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:43:37,904 INFO L85 PathProgramCache]: Analyzing trace with hash 231826706, now seen corresponding path program 14 times [2022-03-16 09:43:37,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:43:37,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409787727] [2022-03-16 09:43:37,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:43:37,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:43:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:43:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:43:39,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:43:39,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409787727] [2022-03-16 09:43:39,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409787727] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:43:39,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639481117] [2022-03-16 09:43:39,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 09:43:39,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:43:39,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:43:39,936 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:43:39,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-16 09:43:40,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 09:43:40,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:43:40,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 82 conjunts are in the unsatisfiable core [2022-03-16 09:43:40,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:43:40,984 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 15 treesize of output 11 [2022-03-16 09:43:41,265 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 15 treesize of output 11 [2022-03-16 09:43:41,545 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 15 treesize of output 11 [2022-03-16 09:43:42,282 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 [2022-03-16 09:43:42,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 09:43:42,605 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 [2022-03-16 09:43:44,198 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-03-16 09:43:44,199 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 47 treesize of output 16 [2022-03-16 09:43:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:43:44,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:44:06,869 INFO L353 Elim1Store]: treesize reduction 96, result has 39.6 percent of original size [2022-03-16 09:44:06,869 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 261 treesize of output 167 [2022-03-16 09:44:07,044 INFO L353 Elim1Store]: treesize reduction 81, result has 67.1 percent of original size [2022-03-16 09:44:07,044 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 698 treesize of output 754 [2022-03-16 09:44:07,118 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-03-16 09:44:07,118 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 556 treesize of output 538 [2022-03-16 09:44:07,168 INFO L353 Elim1Store]: treesize reduction 24, result has 52.9 percent of original size [2022-03-16 09:44:07,168 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 468 treesize of output 366 [2022-03-16 09:45:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:45:45,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639481117] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:45:45,293 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:45:45,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40, 42] total 112 [2022-03-16 09:45:45,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086024844] [2022-03-16 09:45:45,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:45:45,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-03-16 09:45:45,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:45:45,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-03-16 09:45:45,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=11489, Unknown=82, NotChecked=0, Total=12432 [2022-03-16 09:45:45,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:45:45,295 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:45:45,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 3.2232142857142856) internal successors, (361), 112 states have internal predecessors, (361), 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) [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:45:45,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:46:18,927 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7625 transitions and produced 4388 states. [2022-03-16 09:46:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:46:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:46:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:46:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:46:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-03-16 09:46:18,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-03-16 09:46:19,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:46:19,129 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:46:19,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:46:19,129 INFO L85 PathProgramCache]: Analyzing trace with hash 571277092, now seen corresponding path program 15 times [2022-03-16 09:46:19,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:46:19,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076270024] [2022-03-16 09:46:19,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:46:19,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:46:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:46:21,428 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:46:21,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:46:21,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076270024] [2022-03-16 09:46:21,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076270024] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:46:21,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784027017] [2022-03-16 09:46:21,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 09:46:21,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:46:21,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:46:21,429 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:46:21,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-03-16 09:46:21,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-16 09:46:21,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:46:21,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 56 conjunts are in the unsatisfiable core [2022-03-16 09:46:21,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:46:22,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 09:46:22,698 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 [2022-03-16 09:46:23,714 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-16 09:46:23,714 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 47 treesize of output 13 [2022-03-16 09:46:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:46:23,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:46:25,025 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_627 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_627) c_~q~0.base))) (or (not (= (select .cse0 (+ c_~q~0.offset (* 4 c_~q_back~0))) 1)) (let ((.cse2 (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|)) (.cse1 (let ((.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse3 c_~q~0.offset)) (select .cse0 (+ .cse3 c_~q~0.offset 4)))))) (and (<= .cse1 .cse2) (<= .cse2 .cse1)))))) is different from false [2022-03-16 09:46:25,078 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-03-16 09:46:25,078 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 160 treesize of output 161 [2022-03-16 09:46:25,104 INFO L353 Elim1Store]: treesize reduction 26, result has 50.9 percent of original size [2022-03-16 09:46:25,104 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 105 treesize of output 98 [2022-03-16 09:46:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:46:26,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784027017] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:46:26,938 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:46:26,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 27, 27] total 84 [2022-03-16 09:46:26,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199019983] [2022-03-16 09:46:26,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:46:26,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-03-16 09:46:26,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:46:26,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-03-16 09:46:26,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=6498, Unknown=1, NotChecked=162, Total=6972 [2022-03-16 09:46:26,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:46:26,939 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:46:26,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 3.9523809523809526) internal successors, (332), 84 states have internal predecessors, (332), 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) [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-03-16 09:46:26,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:46:42,736 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 16442 transitions and produced 8886 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:46:42,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:46:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:46:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:46:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:46:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:46:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:46:42,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-03-16 09:46:42,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-03-16 09:46:42,938 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:46:42,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:46:42,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1787209728, now seen corresponding path program 16 times [2022-03-16 09:46:42,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:46:42,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777860128] [2022-03-16 09:46:42,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:46:42,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:46:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:46:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:46:45,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:46:45,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777860128] [2022-03-16 09:46:45,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777860128] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:46:45,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224630214] [2022-03-16 09:46:45,153 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 09:46:45,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:46:45,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:46:45,154 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:46:45,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-03-16 09:46:45,236 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 09:46:45,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:46:45,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 84 conjunts are in the unsatisfiable core [2022-03-16 09:46:45,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:46:45,269 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 [2022-03-16 09:46:45,677 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-16 09:46:45,677 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 [2022-03-16 09:46:47,281 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 [2022-03-16 09:46:49,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 09:46:49,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 09:46:49,056 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:46:49,056 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 16 [2022-03-16 09:46:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:46:49,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:46:51,455 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-03-16 09:46:51,456 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 218 treesize of output 203 [2022-03-16 09:46:51,484 INFO L353 Elim1Store]: treesize reduction 24, result has 52.9 percent of original size [2022-03-16 09:46:51,485 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 131 treesize of output 112 [2022-03-16 09:46:57,812 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 [2022-03-16 09:46:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:46:57,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224630214] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:46:57,846 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:46:57,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40, 40] total 110 [2022-03-16 09:46:57,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466883887] [2022-03-16 09:46:57,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:46:57,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-03-16 09:46:57,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:46:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-03-16 09:46:57,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=869, Invalid=11108, Unknown=13, NotChecked=0, Total=11990 [2022-03-16 09:46:57,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:46:57,848 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:46:57,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 3.272727272727273) internal successors, (360), 110 states have internal predecessors, (360), 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) [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:46:57,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:46:57,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:47:25,213 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 26962 transitions and produced 13796 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:47:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:47:25,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-03-16 09:47:25,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-03-16 09:47:25,415 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:47:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:47:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1227200136, now seen corresponding path program 17 times [2022-03-16 09:47:25,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:47:25,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121766260] [2022-03-16 09:47:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:47:25,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:47:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:47:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:47:27,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:47:27,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121766260] [2022-03-16 09:47:27,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121766260] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:47:27,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761416215] [2022-03-16 09:47:27,560 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 09:47:27,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:47:27,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:47:27,561 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:47:27,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-03-16 09:47:27,661 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-03-16 09:47:27,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:47:27,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 91 conjunts are in the unsatisfiable core [2022-03-16 09:47:27,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:47:27,706 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 [2022-03-16 09:47:28,110 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-16 09:47:28,111 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 [2022-03-16 09:47:29,652 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 [2022-03-16 09:47:31,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 09:47:31,022 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:47:31,023 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 13 [2022-03-16 09:47:31,498 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:47:31,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:47:33,572 INFO L353 Elim1Store]: treesize reduction 64, result has 37.9 percent of original size [2022-03-16 09:47:33,573 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 220 treesize of output 190 [2022-03-16 09:47:33,594 INFO L353 Elim1Store]: treesize reduction 41, result has 22.6 percent of original size [2022-03-16 09:47:33,594 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 132 treesize of output 98 [2022-03-16 09:47:37,733 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 [2022-03-16 09:47:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:47:37,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761416215] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:47:37,762 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:47:37,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40, 40] total 110 [2022-03-16 09:47:37,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317106742] [2022-03-16 09:47:37,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:47:37,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-03-16 09:47:37,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:47:37,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-03-16 09:47:37,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1184, Invalid=10803, Unknown=3, NotChecked=0, Total=11990 [2022-03-16 09:47:37,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:47:37,764 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:47:37,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 3.272727272727273) internal successors, (360), 110 states have internal predecessors, (360), 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) [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:47:37,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:48:19,170 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 26188 transitions and produced 13429 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:48:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:48:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:48:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:48:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:48:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:48:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:48:19,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-03-16 09:48:19,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:48:19,376 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:48:19,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:48:19,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2145883756, now seen corresponding path program 18 times [2022-03-16 09:48:19,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:48:19,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905548603] [2022-03-16 09:48:19,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:48:19,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:48:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:48:20,284 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:48:20,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:48:20,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905548603] [2022-03-16 09:48:20,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905548603] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:48:20,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008736863] [2022-03-16 09:48:20,284 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 09:48:20,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:48:20,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:48:20,286 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:48:20,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-03-16 09:48:20,398 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-03-16 09:48:20,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:48:20,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-16 09:48:20,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:48:21,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 09:48:21,760 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 19 treesize of output 21 [2022-03-16 09:48:22,069 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-16 09:48:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:48:22,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:48:22,566 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 09:48:22,566 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 47 treesize of output 47 [2022-03-16 09:48:22,570 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 25 treesize of output 18 [2022-03-16 09:48:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:48:25,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008736863] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:48:25,259 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:48:25,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 70 [2022-03-16 09:48:25,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737484015] [2022-03-16 09:48:25,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:48:25,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-03-16 09:48:25,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:48:25,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-03-16 09:48:25,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=4422, Unknown=0, NotChecked=0, Total=4830 [2022-03-16 09:48:25,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:48:25,260 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:48:25,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 4.814285714285714) internal successors, (337), 70 states have internal predecessors, (337), 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) [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:48:25,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:48:25,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:48:39,964 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 38738 transitions and produced 19381 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:48:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:48:39,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:48:39,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-03-16 09:48:40,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:48:40,169 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:48:40,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:48:40,170 INFO L85 PathProgramCache]: Analyzing trace with hash 952259760, now seen corresponding path program 19 times [2022-03-16 09:48:40,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:48:40,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470118103] [2022-03-16 09:48:40,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:48:40,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:48:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:48:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:48:42,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:48:42,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470118103] [2022-03-16 09:48:42,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470118103] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:48:42,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083577986] [2022-03-16 09:48:42,474 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 09:48:42,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:48:42,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:48:42,475 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:48:42,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-03-16 09:48:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:48:42,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 77 conjunts are in the unsatisfiable core [2022-03-16 09:48:42,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:48:42,600 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 [2022-03-16 09:48:43,043 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-16 09:48:43,043 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 [2022-03-16 09:48:45,078 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 29 treesize of output 29 [2022-03-16 09:48:46,316 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-03-16 09:48:46,316 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 47 treesize of output 16 [2022-03-16 09:48:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:48:46,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:48:47,595 WARN L838 $PredicateComparison]: unable to prove that (or (not (<= 0 c_~q_back~0)) (and (forall ((v_ArrVal_762 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset 4)) (select .cse0 (+ .cse1 c_~q~0.offset)))) c_~N~0)) (forall ((v_ArrVal_762 (Array Int Int))) (<= c_~N~0 (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset 4)) (select .cse2 (+ .cse3 c_~q~0.offset))))))) (not (< c_~q_back~0 c_~n~0)) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0)) is different from false [2022-03-16 09:48:47,619 WARN L838 $PredicateComparison]: unable to prove that (or (not (= (select (select |c_#memory_int| c_~q~0.base) (+ c_~q~0.offset (* 4 c_~q_back~0))) 1)) (and (forall ((v_ArrVal_762 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset 4)) (select .cse0 (+ .cse1 c_~q~0.offset)))) c_~N~0)) (forall ((v_ArrVal_762 (Array Int Int))) (<= c_~N~0 (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset 4)) (select .cse2 (+ .cse3 c_~q~0.offset))))))) (<= c_~n~0 0) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0) (<= c_~n~0 (+ c_~q_back~0 1))) is different from false [2022-03-16 09:48:47,648 WARN L838 $PredicateComparison]: unable to prove that (or (not (= (select (select |c_#memory_int| c_~q~0.base) (+ c_~q~0.offset (* 4 c_~q_back~0))) 1)) (<= c_~n~0 0) (and (forall ((v_ArrVal_762 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset 4)) (select .cse0 (+ .cse1 c_~q~0.offset)))) (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1))) (forall ((v_ArrVal_762 (Array Int Int))) (<= (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset 4)) (select .cse2 (+ .cse3 c_~q~0.offset))))))) (<= c_~n~0 (+ c_~q_back~0 1))) is different from false [2022-03-16 09:48:47,684 WARN L838 $PredicateComparison]: unable to prove that (or (not (= (select (select |c_#memory_int| c_~q~0.base) (+ c_~q~0.offset (* 4 c_~q_back~0))) 1)) (<= c_~n~0 0) (<= c_~n~0 (+ c_~q_back~0 1)) (and (forall ((v_ArrVal_762 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset 4)) (select .cse0 (+ .cse1 c_~q~0.offset)))) (+ 2 |c_thread1Thread1of1ForFork1_#t~post1#1|))) (forall ((v_ArrVal_762 (Array Int Int))) (<= (+ 2 |c_thread1Thread1of1ForFork1_#t~post1#1|) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset 4)) (select .cse2 (+ .cse3 c_~q~0.offset)))))))) is different from false [2022-03-16 09:48:47,704 WARN L838 $PredicateComparison]: unable to prove that (or (not (= (select (select |c_#memory_int| c_~q~0.base) (+ c_~q~0.offset (* 4 c_~q_back~0))) 1)) (<= c_~n~0 0) (and (forall ((v_ArrVal_762 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset 4)) (select .cse0 (+ .cse1 c_~q~0.offset)))) (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|))) (forall ((v_ArrVal_762 (Array Int Int))) (<= (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset 4)) (select .cse2 (+ .cse3 c_~q~0.offset))))))) (<= c_~n~0 (+ c_~q_back~0 1))) is different from false [2022-03-16 09:48:47,765 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-03-16 09:48:47,766 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 138 treesize of output 140 [2022-03-16 09:48:47,782 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-16 09:48:47,782 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 79 treesize of output 66 [2022-03-16 09:48:47,791 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-16 09:48:47,791 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 66 treesize of output 53 [2022-03-16 09:48:52,944 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 [2022-03-16 09:48:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2022-03-16 09:48:52,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083577986] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:48:52,972 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:48:52,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 38, 38] total 106 [2022-03-16 09:48:52,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196644912] [2022-03-16 09:48:52,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:48:52,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-03-16 09:48:52,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:48:52,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-03-16 09:48:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=782, Invalid=9333, Unknown=5, NotChecked=1010, Total=11130 [2022-03-16 09:48:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:48:52,974 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:48:52,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 3.3962264150943398) internal successors, (360), 106 states have internal predecessors, (360), 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) [2022-03-16 09:48:52,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:48:52,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:48:52,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:48:52,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:48:52,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:48:52,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:48:52,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:48:52,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:48:52,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:49:02,137 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse9 (<= c_~n~0 (+ 2 c_~q_back~0)))) (let ((.cse6 (or (<= 0 c_~s~0) .cse9)) (.cse8 (or (<= c_~s~0 0) .cse9)) (.cse4 (< c_~q_back~0 0)) (.cse5 (or (<= c_~q_front~0 c_~q_back~0) .cse9)) (.cse10 (or (not (= |c_ULTIMATE.start_main_~#t2~0#1.base| c_~q~0.base)) .cse9)) (.cse7 (or (<= c_~n~0 (+ c_~q_front~0 3)) .cse9))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~#t2~0#1.base|) 1) (or (not (= (select (select |c_#memory_int| c_~q~0.base) (+ c_~q~0.offset (* 4 c_~q_back~0))) 1)) (<= c_~n~0 0) (and (forall ((v_ArrVal_762 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset 4)) (select .cse0 (+ .cse1 c_~q~0.offset)))) (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|))) (forall ((v_ArrVal_762 (Array Int Int))) (<= (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset 4)) (select .cse2 (+ .cse3 c_~q~0.offset))))))) (<= c_~n~0 (+ c_~q_back~0 1))) (or .cse4 (and .cse5 .cse6 .cse7 .cse8 (or (not (= |c_ULTIMATE.start_main_~#t2~0#1.base| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) .cse9))) (or (and .cse5 (or (not (= |c_ULTIMATE.start_main_~#t2~0#1.base| |c_ULTIMATE.start_create_fresh_int_array_#t~malloc18#1.base|)) .cse9) .cse6 .cse7 .cse8) (< 3 |c_ULTIMATE.start_create_fresh_int_array_~size#1|) .cse4) (= c_~s~0 0) (or .cse4 (and .cse5 .cse10 .cse6 .cse7 .cse8)) (or (and .cse5 .cse6 .cse7 (or (not (= |c_ULTIMATE.start_main_~#t2~0#1.base| |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|)) .cse9) .cse8) .cse4) (or (not (= |c_thread2Thread1of1ForFork0_~j~0#1| 0)) (and (<= c_~N~0 c_~s~0) (<= c_~s~0 c_~N~0))) (or .cse4 (and .cse5 .cse6 .cse7 .cse8 (or (not (= |c_ULTIMATE.start_main_#t~ret11#1.base| |c_ULTIMATE.start_main_~#t2~0#1.base|)) .cse9))) (<= (+ |c_#StackHeapBarrier| 1) |c_ULTIMATE.start_main_~#t2~0#1.base|) (or .cse4 (and .cse5 (or (<= c_~s~0 |c_thread1Thread1of1ForFork1_~i~0#1|) .cse9) .cse10 .cse7 (or (<= |c_thread1Thread1of1ForFork1_~i~0#1| c_~s~0) .cse9)))))) is different from false [2022-03-16 09:49:06,962 WARN L838 $PredicateComparison]: unable to prove that (and (or (not (= (select (select |c_#memory_int| c_~q~0.base) (+ c_~q~0.offset (* 4 c_~q_back~0))) 1)) (and (forall ((v_ArrVal_762 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset 4)) (select .cse0 (+ .cse1 c_~q~0.offset)))) c_~N~0)) (forall ((v_ArrVal_762 (Array Int Int))) (<= c_~N~0 (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset 4)) (select .cse2 (+ .cse3 c_~q~0.offset))))))) (<= c_~n~0 0) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0) (<= c_~n~0 (+ c_~q_back~0 1))) (or (< c_~q_back~0 0) (let ((.cse4 (<= c_~n~0 (+ 2 c_~q_back~0)))) (and (or (<= c_~q_front~0 c_~q_back~0) .cse4) (or (<= c_~s~0 |c_thread1Thread1of1ForFork1_~i~0#1|) .cse4) (or (not (= |c_ULTIMATE.start_main_~#t2~0#1.base| c_~q~0.base)) .cse4) (or (<= c_~n~0 (+ c_~q_front~0 3)) .cse4) (or (<= |c_thread1Thread1of1ForFork1_~i~0#1| c_~s~0) .cse4))))) is different from false [2022-03-16 09:49:06,971 WARN L838 $PredicateComparison]: unable to prove that (and (or (not (= (select (select |c_#memory_int| c_~q~0.base) (+ c_~q~0.offset (* 4 c_~q_back~0))) 1)) (<= c_~n~0 0) (and (forall ((v_ArrVal_762 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset 4)) (select .cse0 (+ .cse1 c_~q~0.offset)))) (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|))) (forall ((v_ArrVal_762 (Array Int Int))) (<= (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset 4)) (select .cse2 (+ .cse3 c_~q~0.offset))))))) (<= c_~n~0 (+ c_~q_back~0 1))) (or (not (<= 0 c_~q_back~0)) (and (forall ((v_ArrVal_762 (Array Int Int))) (<= (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse5 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse4 (+ .cse5 c_~q~0.offset 4)) (select .cse4 (+ .cse5 c_~q~0.offset)))) c_~N~0)) (forall ((v_ArrVal_762 (Array Int Int))) (<= c_~N~0 (let ((.cse6 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_762) c_~q~0.base)) (.cse7 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse6 (+ .cse7 c_~q~0.offset 4)) (select .cse6 (+ .cse7 c_~q~0.offset))))))) (not (< c_~q_back~0 c_~n~0)) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0))) is different from false [2022-03-16 09:49:11,219 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12985 transitions and produced 7208 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:49:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:49:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:49:11,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-03-16 09:49:11,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-03-16 09:49:11,421 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:49:11,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:49:11,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1291710146, now seen corresponding path program 20 times [2022-03-16 09:49:11,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:49:11,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406156946] [2022-03-16 09:49:11,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:49:11,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:49:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:49:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:49:14,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:49:14,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406156946] [2022-03-16 09:49:14,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406156946] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:49:14,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957342038] [2022-03-16 09:49:14,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 09:49:14,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:49:14,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:49:14,080 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:49:14,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-03-16 09:49:14,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 09:49:14,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:49:14,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 85 conjunts are in the unsatisfiable core [2022-03-16 09:49:14,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:49:15,084 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 15 treesize of output 11 [2022-03-16 09:49:15,331 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 15 treesize of output 11 [2022-03-16 09:49:15,587 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 15 treesize of output 11 [2022-03-16 09:49:16,300 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 [2022-03-16 09:49:17,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 09:49:17,271 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 29 treesize of output 29 [2022-03-16 09:49:19,033 INFO L353 Elim1Store]: treesize reduction 93, result has 7.0 percent of original size [2022-03-16 09:49:19,033 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 46 treesize of output 19 [2022-03-16 09:49:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:49:19,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:49:20,520 WARN L838 $PredicateComparison]: unable to prove that (or (and (forall ((v_ArrVal_802 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_802) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset)) (select .cse0 (+ .cse1 c_~q~0.offset 4)))) c_~N~0)) (forall ((v_ArrVal_802 (Array Int Int))) (<= c_~N~0 (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_802) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset)) (select .cse2 (+ .cse3 c_~q~0.offset 4))))))) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0) (<= c_~n~0 c_~q_back~0) (< c_~q_front~0 0) (<= c_~q_back~0 c_~q_front~0)) is different from false [2022-03-16 09:49:37,587 INFO L353 Elim1Store]: treesize reduction 96, result has 39.6 percent of original size [2022-03-16 09:49:37,588 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 258 treesize of output 164 [2022-03-16 09:49:37,859 INFO L353 Elim1Store]: treesize reduction 104, result has 69.7 percent of original size [2022-03-16 09:49:37,859 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 348 treesize of output 512 [2022-03-16 09:49:37,927 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-03-16 09:49:37,928 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 512 treesize of output 526 [2022-03-16 09:49:37,965 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-16 09:49:37,965 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 161 treesize of output 135 [2022-03-16 09:49:37,991 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-03-16 09:49:37,991 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 135 treesize of output 109 [2022-03-16 09:50:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 41 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:58,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957342038] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:50:58,013 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:50:58,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40, 42] total 112 [2022-03-16 09:50:58,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786073124] [2022-03-16 09:50:58,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:50:58,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-03-16 09:50:58,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:58,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-03-16 09:50:58,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1006, Invalid=11119, Unknown=89, NotChecked=218, Total=12432 [2022-03-16 09:50:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:58,015 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:58,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 3.2232142857142856) internal successors, (361), 112 states have internal predecessors, (361), 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) [2022-03-16 09:50:58,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:58,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:50:58,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:50:58,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:50:58,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:50:58,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:50:58,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:08,842 WARN L838 $PredicateComparison]: unable to prove that (and (<= (+ c_~q_front~0 c_~n~0) (+ c_~q_back~0 1)) (let ((.cse3 (* c_~q_front~0 4))) (let ((.cse4 (+ .cse3 c_~q~0.offset))) (or (let ((.cse0 (* c_~n~0 4)) (.cse1 (* 4 c_~q_back~0)) (.cse2 (select |c_#memory_int| c_~q~0.base))) (and (<= |c_thread1Thread1of1ForFork1_~i~0#1| 1) (or (< .cse0 (+ .cse1 4)) (= (select .cse2 (+ .cse3 4)) 1)) (or (<= .cse0 (+ c_~q~0.offset 3 .cse1)) (= (select .cse2 .cse4) 1)) (= c_~s~0 0) (<= 2 c_~N~0))) (not (= .cse4 0))))) (<= 0 c_~q_front~0) (or (and (<= (+ c_~q_front~0 2) c_~q_back~0) (<= c_~n~0 c_~q_front~0)) (not (= |c_ULTIMATE.start_main_~#t2~0#1.base| c_~q~0.base))) (or (and (forall ((v_ArrVal_802 (Array Int Int))) (<= (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_802) c_~q~0.base)) (.cse6 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse5 (+ .cse6 c_~q~0.offset)) (select .cse5 (+ .cse6 c_~q~0.offset 4)))) c_~N~0)) (forall ((v_ArrVal_802 (Array Int Int))) (<= c_~N~0 (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_802) c_~q~0.base)) (.cse8 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse7 (+ .cse8 c_~q~0.offset)) (select .cse7 (+ .cse8 c_~q~0.offset 4))))))) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0) (<= c_~n~0 c_~q_back~0) (< c_~q_front~0 0) (<= c_~q_back~0 c_~q_front~0)) (= c_~q~0.offset 0)) is different from false [2022-03-16 09:51:10,439 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (< c_~q_front~0 0))) (and (or (and (forall ((v_ArrVal_802 (Array Int Int))) (<= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_802) c_~q~0.base)) (.cse1 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse0 (+ .cse1 c_~q~0.offset)) (select .cse0 (+ .cse1 c_~q~0.offset 4)))) c_~N~0)) (forall ((v_ArrVal_802 (Array Int Int))) (<= c_~N~0 (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_802) c_~q~0.base)) (.cse3 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse2 (+ .cse3 c_~q~0.offset)) (select .cse2 (+ .cse3 c_~q~0.offset 4))))))) (< (+ |c_thread1Thread1of1ForFork1_~i~0#1| 1) c_~N~0) (<= c_~n~0 c_~q_back~0) .cse4 (<= c_~q_back~0 c_~q_front~0)) (or (not (= (select (select |c_#memory_int| c_~q~0.base) (+ c_~q~0.offset (* 4 c_~q_back~0))) 1)) (<= c_~n~0 (+ c_~q_front~0 1)) (and (forall ((v_ArrVal_802 (Array Int Int))) (<= (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_802) c_~q~0.base)) (.cse6 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse5 (+ .cse6 c_~q~0.offset)) (select .cse5 (+ .cse6 c_~q~0.offset 4)))) (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|))) (forall ((v_ArrVal_802 (Array Int Int))) (<= (+ 2 |c_thread1Thread1of1ForFork1_~i~0#1|) (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_802) c_~q~0.base)) (.cse8 (* c_~q_front~0 4))) (+ c_~s~0 (select .cse7 (+ .cse8 c_~q~0.offset)) (select .cse7 (+ .cse8 c_~q~0.offset 4))))))) .cse4 (<= c_~n~0 (+ c_~q_back~0 1))))) is different from false [2022-03-16 09:51:15,558 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5236 transitions and produced 3047 states. [2022-03-16 09:51:15,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:15,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:51:15,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:51:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:51:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:51:15,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-03-16 09:51:15,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-03-16 09:51:15,760 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:51:15,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:51:15,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1851719738, now seen corresponding path program 21 times [2022-03-16 09:51:15,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:51:15,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695333701] [2022-03-16 09:51:15,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:51:15,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:51:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:51:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:18,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:51:18,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695333701] [2022-03-16 09:51:18,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695333701] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:51:18,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717653216] [2022-03-16 09:51:18,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 09:51:18,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:51:18,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:51:18,100 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:51:18,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-03-16 09:51:18,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-16 09:51:18,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:51:18,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 65 conjunts are in the unsatisfiable core [2022-03-16 09:51:18,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:51:18,494 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 [2022-03-16 09:51:18,758 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-16 09:51:18,758 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 [2022-03-16 09:51:20,301 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 29 treesize of output 29 [2022-03-16 09:51:21,796 INFO L353 Elim1Store]: treesize reduction 81, result has 16.5 percent of original size [2022-03-16 09:51:21,796 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 45 treesize of output 28 [2022-03-16 09:51:22,406 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:51:22,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:51:25,060 INFO L353 Elim1Store]: treesize reduction 60, result has 38.1 percent of original size [2022-03-16 09:51:25,060 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 134 treesize of output 122 [2022-03-16 09:51:25,071 INFO L353 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-03-16 09:51:25,072 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 77 treesize of output 65 [2022-03-16 09:51:25,082 INFO L353 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-03-16 09:51:25,083 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 65 treesize of output 53 [2022-03-16 09:51:27,996 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 [2022-03-16 09:51:28,027 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 09:51:28,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717653216] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:51:28,028 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:51:28,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 29, 29] total 86 [2022-03-16 09:51:28,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147279459] [2022-03-16 09:51:28,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:51:28,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-03-16 09:51:28,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:51:28,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-03-16 09:51:28,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=756, Invalid=6548, Unknown=6, NotChecked=0, Total=7310 [2022-03-16 09:51:28,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:28,029 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:51:28,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.7209302325581395) internal successors, (320), 86 states have internal predecessors, (320), 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) [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:51:28,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:50,353 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 13444 transitions and produced 7064 states. [2022-03-16 09:51:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:51:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:51:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-16 09:51:50,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-03-16 09:51:50,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-03-16 09:51:50,567 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 09:51:50,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:51:50,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1123871214, now seen corresponding path program 22 times [2022-03-16 09:51:50,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:51:50,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582277888] [2022-03-16 09:51:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:51:50,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:51:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:51:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:53,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:51:53,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582277888] [2022-03-16 09:51:53,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582277888] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:51:53,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540445844] [2022-03-16 09:51:53,051 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 09:51:53,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:51:53,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:51:53,052 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 09:51:53,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-03-16 09:51:53,152 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 09:51:53,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:51:53,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 88 conjunts are in the unsatisfiable core [2022-03-16 09:51:53,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:51:53,258 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 [2022-03-16 09:51:53,838 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-16 09:51:53,838 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 [2022-03-16 09:51:54,137 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 [2022-03-16 09:51:54,402 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 [2022-03-16 09:51:54,726 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 [2022-03-16 09:51:55,384 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 [2022-03-16 09:51:56,824 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 29 treesize of output 29 [2022-03-16 09:51:57,597 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-03-16 09:51:57,598 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 47 treesize of output 16 [2022-03-16 09:51:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:57,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:51:58,735 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_877 (Array Int Int))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_877) c_~q~0.base)) (.cse4 (* c_~q_front~0 4))) (let ((.cse2 (select .cse3 (+ .cse4 c_~q~0.offset 4))) (.cse1 (select .cse3 (+ .cse4 c_~q~0.offset)))) (or (let ((.cse0 (+ c_~s~0 .cse1 .cse2))) (and (<= c_~N~0 .cse0) (<= .cse0 c_~N~0))) (= .cse2 0) (= .cse1 0))))) is different from false [2022-03-16 09:52:32,023 INFO L353 Elim1Store]: treesize reduction 96, result has 39.6 percent of original size [2022-03-16 09:52:32,024 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 345 treesize of output 199 [2022-03-16 09:52:32,238 INFO L353 Elim1Store]: treesize reduction 81, result has 67.1 percent of original size [2022-03-16 09:52:32,239 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 874 treesize of output 904 [2022-03-16 09:52:32,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 09:52:32,259 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 658 treesize of output 502 [2022-03-16 09:52:32,332 INFO L353 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2022-03-16 09:52:32,333 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 550 treesize of output 512 [2022-03-16 09:52:58,461 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 [2022-03-16 09:52:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:52:58,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540445844] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:52:58,489 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:52:58,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 42, 44] total 116 [2022-03-16 09:52:58,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419643628] [2022-03-16 09:52:58,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:52:58,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-03-16 09:52:58,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:52:58,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-03-16 09:52:58,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=931, Invalid=12113, Unknown=70, NotChecked=226, Total=13340 [2022-03-16 09:52:58,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:58,491 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:52:58,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 3.1120689655172415) internal successors, (361), 116 states have internal predecessors, (361), 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) [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 180 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-03-16 09:52:58,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-03-16 09:52:58,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 09:53:03,254 WARN L244 SmtUtils]: Removed 20 from assertion stack [2022-03-16 09:53:03,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-03-16 09:53:03,287 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 09:53:03,288 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 09:53:03,288 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 [2022-03-16 09:53:03,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-03-16 09:53:03,455 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 87ms.. [2022-03-16 09:53:03,457 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-16 09:53:03,457 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 09:53:03,457 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 09:53:03,461 INFO L732 BasicCegarLoop]: Path program histogram: [22, 3, 1, 1, 1, 1] [2022-03-16 09:53:03,462 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 09:53:03,462 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 09:53:03,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 09:53:03 BasicIcfg [2022-03-16 09:53:03,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 09:53:03,464 INFO L158 Benchmark]: Toolchain (without parser) took 783201.07ms. Allocated memory was 173.0MB in the beginning and 1.0GB in the end (delta: 858.8MB). Free memory was 114.5MB in the beginning and 327.2MB in the end (delta: -212.7MB). Peak memory consumption was 864.6MB. Max. memory is 8.0GB. [2022-03-16 09:53:03,464 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 173.0MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 09:53:03,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.76ms. Allocated memory was 173.0MB in the beginning and 265.3MB in the end (delta: 92.3MB). Free memory was 114.4MB in the beginning and 236.4MB in the end (delta: -122.0MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. [2022-03-16 09:53:03,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.96ms. Allocated memory is still 265.3MB. Free memory was 236.4MB in the beginning and 234.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 09:53:03,464 INFO L158 Benchmark]: Boogie Preprocessor took 22.11ms. Allocated memory is still 265.3MB. Free memory was 234.3MB in the beginning and 232.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 09:53:03,465 INFO L158 Benchmark]: RCFGBuilder took 476.94ms. Allocated memory is still 265.3MB. Free memory was 232.7MB in the beginning and 211.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-03-16 09:53:03,465 INFO L158 Benchmark]: TraceAbstraction took 782461.00ms. Allocated memory was 265.3MB in the beginning and 1.0GB in the end (delta: 766.5MB). Free memory was 211.2MB in the beginning and 327.2MB in the end (delta: -116.0MB). Peak memory consumption was 868.6MB. Max. memory is 8.0GB. [2022-03-16 09:53:03,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 173.0MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 208.76ms. Allocated memory was 173.0MB in the beginning and 265.3MB in the end (delta: 92.3MB). Free memory was 114.4MB in the beginning and 236.4MB in the end (delta: -122.0MB). Peak memory consumption was 13.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.96ms. Allocated memory is still 265.3MB. Free memory was 236.4MB in the beginning and 234.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.11ms. Allocated memory is still 265.3MB. Free memory was 234.3MB in the beginning and 232.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 476.94ms. Allocated memory is still 265.3MB. Free memory was 232.7MB in the beginning and 211.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 782461.00ms. Allocated memory was 265.3MB in the beginning and 1.0GB in the end (delta: 766.5MB). Free memory was 211.2MB in the beginning and 327.2MB in the end (delta: -116.0MB). Peak memory consumption was 868.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 98]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 87ms.. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 87ms.. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 87ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 146 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 782.3s, OverallIterations: 29, TraceHistogramMax: 0, PathProgramHistogramMax: 22, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 336.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2253, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 435.9s InterpolantComputationTime, 7186 NumberOfCodeBlocks, 7115 NumberOfCodeBlocksAsserted, 86 NumberOfCheckSat, 10434 ConstructedInterpolants, 652 QuantifiedInterpolants, 210139 SizeOfPredicates, 749 NumberOfNonLiveVariables, 7971 ConjunctsInSsa, 1364 ConjunctsInUnsatCore, 80 InterpolantComputations, 4 PerfectInterpolantSequences, 525/2519 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