/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-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 21:53:51,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 21:53:51,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 21:53:51,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 21:53:51,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 21:53:51,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 21:53:51,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 21:53:51,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 21:53:51,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 21:53:51,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 21:53:51,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 21:53:51,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 21:53:51,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 21:53:51,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 21:53:51,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 21:53:51,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 21:53:51,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 21:53:51,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 21:53:51,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 21:53:51,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 21:53:51,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 21:53:51,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 21:53:51,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 21:53:51,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 21:53:51,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 21:53:51,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-01 21:53:51,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-01 21:53:51,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-01 21:53:51,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-01 21:53:51,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-01 21:53:51,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-01 21:53:51,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-01 21:53:51,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-01 21:53:51,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 21:53:51,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 21:53:51,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 21:53:51,443 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-wrwc.epf [2022-03-01 21:53:51,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 21:53:51,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 21:53:51,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 21:53:51,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 21:53:51,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 21:53:51,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 21:53:51,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 21:53:51,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 21:53:51,462 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 21:53:51,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 21:53:51,462 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 21:53:51,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 21:53:51,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 21:53:51,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 21:53:51,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 21:53:51,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 21:53:51,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 21:53:51,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 21:53:51,464 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 21:53:51,465 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 21:53:51,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 21:53:51,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 21:53:51,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 21:53:51,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 21:53:51,630 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 21:53:51,630 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 21:53:51,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-03-01 21:53:51,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d99e135a/87bc4795ce63443badaf6e626bd71887/FLAGf727dfce8 [2022-03-01 21:53:52,048 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 21:53:52,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-03-01 21:53:52,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d99e135a/87bc4795ce63443badaf6e626bd71887/FLAGf727dfce8 [2022-03-01 21:53:52,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d99e135a/87bc4795ce63443badaf6e626bd71887 [2022-03-01 21:53:52,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 21:53:52,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 21:53:52,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 21:53:52,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 21:53:52,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 21:53:52,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b53292d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52, skipping insertion in model container [2022-03-01 21:53:52,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 21:53:52,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 21:53:52,659 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/test-hard1.wvr.c[3373,3386] [2022-03-01 21:53:52,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 21:53:52,666 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 21:53:52,684 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/test-hard1.wvr.c[3373,3386] [2022-03-01 21:53:52,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 21:53:52,697 INFO L208 MainTranslator]: Completed translation [2022-03-01 21:53:52,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52 WrapperNode [2022-03-01 21:53:52,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 21:53:52,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 21:53:52,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 21:53:52,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 21:53:52,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,721 INFO L137 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2022-03-01 21:53:52,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 21:53:52,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 21:53:52,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 21:53:52,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 21:53:52,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 21:53:52,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 21:53:52,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 21:53:52,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 21:53:52,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (1/1) ... [2022-03-01 21:53:52,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 21:53:52,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:53:52,792 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) [2022-03-01 21:53:52,798 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 [2022-03-01 21:53:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 21:53:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 21:53:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 21:53:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 21:53:52,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 21:53:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 21:53:52,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 21:53:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 21:53:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 21:53:52,820 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 21:53:52,874 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 21:53:52,875 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 21:53:53,096 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 21:53:53,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 21:53:53,129 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-01 21:53:53,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 09:53:53 BoogieIcfgContainer [2022-03-01 21:53:53,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 21:53:53,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 21:53:53,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 21:53:53,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 21:53:53,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 09:53:52" (1/3) ... [2022-03-01 21:53:53,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16518bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 09:53:53, skipping insertion in model container [2022-03-01 21:53:53,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 09:53:52" (2/3) ... [2022-03-01 21:53:53,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16518bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 09:53:53, skipping insertion in model container [2022-03-01 21:53:53,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 09:53:53" (3/3) ... [2022-03-01 21:53:53,142 INFO L111 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2022-03-01 21:53:53,147 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 21:53:53,147 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 21:53:53,147 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 21:53:53,147 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 21:53:53,176 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,176 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,176 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,177 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,177 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,177 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,178 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,178 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,178 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,179 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,179 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,179 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,179 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,179 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,179 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,180 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,181 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,181 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,181 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,181 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,181 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,181 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,182 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,182 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,182 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,182 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,182 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,182 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,182 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,183 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,183 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,183 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,183 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,183 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,184 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,184 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,184 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,184 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,184 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,184 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,184 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,185 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,185 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,185 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,185 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,187 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,188 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,188 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,188 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,189 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,189 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,189 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,189 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,189 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,190 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,190 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,190 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 21:53:53,199 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-01 21:53:53,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 21:53:53,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:53:53,247 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) [2022-03-01 21:53:53,248 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 [2022-03-01 21:53:53,270 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 21:53:53,275 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=false [2022-03-01 21:53:53,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-01 21:53:53,381 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 194 transitions and produced 195 states. [2022-03-01 21:53:53,384 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:53:53,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:53:53,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1063615113, now seen corresponding path program 1 times [2022-03-01 21:53:53,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:53:53,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67574088] [2022-03-01 21:53:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:53:53,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:53:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:53:53,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:53:53,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:53:53,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67574088] [2022-03-01 21:53:53,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67574088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 21:53:53,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 21:53:53,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 21:53:53,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098822926] [2022-03-01 21:53:53,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 21:53:53,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 21:53:53,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:53:53,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 21:53:53,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 21:53:53,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:53,643 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:53:53,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 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) [2022-03-01 21:53:53,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:53,738 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 194 transitions and produced 195 states. [2022-03-01 21:53:53,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:53,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 21:53:53,740 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:53:53,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:53:53,740 INFO L85 PathProgramCache]: Analyzing trace with hash 282936737, now seen corresponding path program 1 times [2022-03-01 21:53:53,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:53:53,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856519035] [2022-03-01 21:53:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:53:53,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:53:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:53:54,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:53:54,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:53:54,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856519035] [2022-03-01 21:53:54,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856519035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 21:53:54,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 21:53:54,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 21:53:54,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776221889] [2022-03-01 21:53:54,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 21:53:54,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 21:53:54,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:53:54,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 21:53:54,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-01 21:53:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,012 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:53:54,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2022-03-01 21:53:54,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,186 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 258 transitions and produced 241 states. [2022-03-01 21:53:54,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:54,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 21:53:54,187 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:53:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:53:54,188 INFO L85 PathProgramCache]: Analyzing trace with hash 947391498, now seen corresponding path program 1 times [2022-03-01 21:53:54,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:53:54,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001704137] [2022-03-01 21:53:54,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:53:54,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:53:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:53:54,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:53:54,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:53:54,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001704137] [2022-03-01 21:53:54,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001704137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 21:53:54,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 21:53:54,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 21:53:54,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142413081] [2022-03-01 21:53:54,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 21:53:54,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 21:53:54,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:53:54,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 21:53:54,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 21:53:54,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,369 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:53:54,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-03-01 21:53:54,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:54,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,479 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 532 transitions and produced 339 states. [2022-03-01 21:53:54,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:54,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:54,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 21:53:54,480 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:53:54,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:53:54,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1304201718, now seen corresponding path program 1 times [2022-03-01 21:53:54,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:53:54,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276734160] [2022-03-01 21:53:54,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:53:54,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:53:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:53:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:53:54,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:53:54,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276734160] [2022-03-01 21:53:54,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276734160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 21:53:54,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 21:53:54,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 21:53:54,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582189978] [2022-03-01 21:53:54,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 21:53:54,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 21:53:54,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:53:54,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 21:53:54,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-01 21:53:54,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,702 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:53:54,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 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) [2022-03-01 21:53:54,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:54,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:54,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:54,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:55,240 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1464 transitions and produced 539 states. [2022-03-01 21:53:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:55,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:55,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:55,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 21:53:55,241 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:53:55,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:53:55,243 INFO L85 PathProgramCache]: Analyzing trace with hash -292933742, now seen corresponding path program 2 times [2022-03-01 21:53:55,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:53:55,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313637285] [2022-03-01 21:53:55,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:53:55,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:53:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:53:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:53:55,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:53:55,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313637285] [2022-03-01 21:53:55,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313637285] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 21:53:55,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 21:53:55,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 21:53:55,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429466192] [2022-03-01 21:53:55,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 21:53:55,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 21:53:55,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:53:55,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 21:53:55,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-01 21:53:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:55,535 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:53:55,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 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) [2022-03-01 21:53:55,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:55,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:55,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:55,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:55,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:55,814 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1650 transitions and produced 643 states. [2022-03-01 21:53:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:53:55,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 21:53:55,816 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:53:55,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:53:55,817 INFO L85 PathProgramCache]: Analyzing trace with hash 608821258, now seen corresponding path program 1 times [2022-03-01 21:53:55,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:53:55,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103377331] [2022-03-01 21:53:55,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:53:55,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:53:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:53:55,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:53:55,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:53:55,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103377331] [2022-03-01 21:53:55,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103377331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 21:53:55,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 21:53:55,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 21:53:55,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39887333] [2022-03-01 21:53:55,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 21:53:55,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 21:53:55,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:53:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 21:53:55,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 21:53:55,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:55,952 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:53:55,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-03-01 21:53:55,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:55,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:55,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:55,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:55,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:53:55,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:56,263 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3840 transitions and produced 1253 states. [2022-03-01 21:53:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:53:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:53:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:56,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 21:53:56,265 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:53:56,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:53:56,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1252610815, now seen corresponding path program 1 times [2022-03-01 21:53:56,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:53:56,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757201518] [2022-03-01 21:53:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:53:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:53:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:53:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:53:56,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:53:56,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757201518] [2022-03-01 21:53:56,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757201518] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 21:53:56,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111194209] [2022-03-01 21:53:56,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:53:56,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:53:56,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:53:56,623 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) [2022-03-01 21:53:56,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 21:53:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:53:56,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-01 21:53:56,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 21:53:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:53:57,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 21:53:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:53:58,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111194209] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 21:53:58,571 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 21:53:58,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 19 [2022-03-01 21:53:58,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916051469] [2022-03-01 21:53:58,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 21:53:58,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-01 21:53:58,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:53:58,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-01 21:53:58,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2022-03-01 21:53:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:58,573 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:53:58,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.526315789473685) internal successors, (181), 19 states have internal predecessors, (181), 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) [2022-03-01 21:53:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:53:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:53:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:59,648 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4180 transitions and produced 1399 states. [2022-03-01 21:53:59,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:53:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:53:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:53:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:53:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:53:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:53:59,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 21:53:59,867 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,SelfDestructingSolverStorable6 [2022-03-01 21:53:59,868 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:53:59,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:53:59,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1104653654, now seen corresponding path program 2 times [2022-03-01 21:53:59,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:53:59,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949314908] [2022-03-01 21:53:59,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:53:59,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:53:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:54:00,103 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:00,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:54:00,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949314908] [2022-03-01 21:54:00,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949314908] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 21:54:00,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798391002] [2022-03-01 21:54:00,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 21:54:00,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:54:00,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:54:00,105 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) [2022-03-01 21:54:00,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 21:54:00,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 21:54:00,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 21:54:00,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-01 21:54:00,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 21:54:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:00,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 21:54:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:01,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798391002] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 21:54:01,093 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 21:54:01,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 13] total 31 [2022-03-01 21:54:01,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577427658] [2022-03-01 21:54:01,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 21:54:01,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-03-01 21:54:01,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:54:01,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-03-01 21:54:01,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2022-03-01 21:54:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:01,095 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:54:01,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.483870967741935) internal successors, (201), 31 states have internal predecessors, (201), 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) [2022-03-01 21:54:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:54:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:54:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:54:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:54:01,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:02,519 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5111 transitions and produced 1598 states. [2022-03-01 21:54:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:54:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:54:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:54:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:02,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:54:02,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 21:54:02,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-01 21:54:02,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:54:02,737 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:54:02,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:54:02,737 INFO L85 PathProgramCache]: Analyzing trace with hash -432991612, now seen corresponding path program 1 times [2022-03-01 21:54:02,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:54:02,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066394648] [2022-03-01 21:54:02,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:54:02,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:54:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:54:02,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:02,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:54:02,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066394648] [2022-03-01 21:54:02,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066394648] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 21:54:02,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961558952] [2022-03-01 21:54:02,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:54:02,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:54:02,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:54:02,962 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) [2022-03-01 21:54:02,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 21:54:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:54:03,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-01 21:54:03,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 21:54:03,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:03,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 21:54:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:04,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961558952] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 21:54:04,212 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 21:54:04,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 14] total 35 [2022-03-01 21:54:04,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729049403] [2022-03-01 21:54:04,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 21:54:04,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-01 21:54:04,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:54:04,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-01 21:54:04,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=983, Unknown=0, NotChecked=0, Total=1190 [2022-03-01 21:54:04,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:04,214 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:54:04,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 5.857142857142857) internal successors, (205), 35 states have internal predecessors, (205), 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) [2022-03-01 21:54:04,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:04,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:54:04,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:04,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:54:04,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:54:04,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:04,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:54:04,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-01 21:54:04,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:06,498 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4472 transitions and produced 1483 states. [2022-03-01 21:54:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:54:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:54:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:54:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:54:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 21:54:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 21:54:06,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 21:54:06,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:54:06,700 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:54:06,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:54:06,700 INFO L85 PathProgramCache]: Analyzing trace with hash 690152862, now seen corresponding path program 2 times [2022-03-01 21:54:06,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:54:06,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261649662] [2022-03-01 21:54:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:54:06,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:54:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:54:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:07,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:54:07,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261649662] [2022-03-01 21:54:07,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261649662] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 21:54:07,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367055732] [2022-03-01 21:54:07,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 21:54:07,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:54:07,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:54:07,079 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) [2022-03-01 21:54:07,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 21:54:07,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 21:54:07,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 21:54:07,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-01 21:54:07,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 21:54:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:08,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 21:54:09,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:09,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367055732] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 21:54:09,847 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 21:54:09,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 31 [2022-03-01 21:54:09,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202326587] [2022-03-01 21:54:09,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 21:54:09,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-03-01 21:54:09,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:54:09,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-03-01 21:54:09,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=771, Unknown=0, NotChecked=0, Total=930 [2022-03-01 21:54:09,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:09,849 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:54:09,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.709677419354839) internal successors, (208), 31 states have internal predecessors, (208), 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) [2022-03-01 21:54:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:54:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:54:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:54:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:54:09,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-01 21:54:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-01 21:54:09,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:12,012 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5219 transitions and produced 1719 states. [2022-03-01 21:54:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:54:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:54:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:54:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:54:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 21:54:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 21:54:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 21:54:12,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 21:54:12,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-01 21:54:12,214 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:54:12,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:54:12,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1816618974, now seen corresponding path program 3 times [2022-03-01 21:54:12,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:54:12,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328435659] [2022-03-01 21:54:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:54:12,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:54:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:54:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:12,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:54:12,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328435659] [2022-03-01 21:54:12,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328435659] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 21:54:12,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522487234] [2022-03-01 21:54:12,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 21:54:12,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:54:12,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:54:12,636 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) [2022-03-01 21:54:12,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 21:54:13,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-01 21:54:13,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 21:54:13,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-01 21:54:13,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 21:54:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:14,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 21:54:18,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:54:18,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522487234] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 21:54:18,122 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 21:54:18,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 14] total 36 [2022-03-01 21:54:18,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525088239] [2022-03-01 21:54:18,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 21:54:18,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-03-01 21:54:18,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:54:18,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-03-01 21:54:18,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2022-03-01 21:54:18,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:18,126 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:54:18,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 36 states have internal predecessors, (201), 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) [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-01 21:54:18,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-01 21:54:18,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:55:16,948 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 126720 transitions and produced 35588 states. [2022-03-01 21:55:16,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:55:16,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:55:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:55:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:55:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:55:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:55:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:55:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 21:55:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-01 21:55:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 21:55:16,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 21:55:16,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 21:55:17,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:55:17,168 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:55:17,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:55:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2120338335, now seen corresponding path program 3 times [2022-03-01 21:55:17,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:55:17,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539562733] [2022-03-01 21:55:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:55:17,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:55:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:55:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:55:17,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:55:17,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539562733] [2022-03-01 21:55:17,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539562733] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 21:55:17,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266407388] [2022-03-01 21:55:17,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 21:55:17,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:55:17,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:55:17,715 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) [2022-03-01 21:55:17,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-01 21:55:17,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-01 21:55:17,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 21:55:17,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 28 conjunts are in the unsatisfiable core [2022-03-01 21:55:17,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 21:55:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:55:19,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 21:55:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:55:27,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266407388] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 21:55:27,084 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 21:55:27,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 18] total 44 [2022-03-01 21:55:27,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889092562] [2022-03-01 21:55:27,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 21:55:27,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-01 21:55:27,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:55:27,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-01 21:55:27,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=1599, Unknown=1, NotChecked=0, Total=1892 [2022-03-01 21:55:27,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:55:27,086 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:55:27,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 4.7727272727272725) internal successors, (210), 44 states have internal predecessors, (210), 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) [2022-03-01 21:55:27,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:55:27,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:55:27,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:55:27,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:55:27,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:55:27,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:55:27,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:55:27,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-01 21:55:27,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-01 21:55:27,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-01 21:55:27,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 21:55:27,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:56:03,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:05,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:19,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:21,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:23,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:25,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:30,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:32,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:34,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:35,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:38,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:40,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:43,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:45,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:47,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:49,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:51,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:53,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:56:56,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:57:01,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:57:03,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:57:20,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:57:22,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:57:23,353 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 48027 transitions and produced 13822 states. [2022-03-01 21:57:23,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:57:23,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 21:57:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-01 21:57:23,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-01 21:57:23,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:57:23,576 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:57:23,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:57:23,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1293412292, now seen corresponding path program 4 times [2022-03-01 21:57:23,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:57:23,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19160593] [2022-03-01 21:57:23,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:57:23,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:57:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:57:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 21:57:24,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:57:24,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19160593] [2022-03-01 21:57:24,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19160593] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 21:57:24,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402665234] [2022-03-01 21:57:24,007 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 21:57:24,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:57:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:57:24,009 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) [2022-03-01 21:57:24,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-01 21:57:24,121 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 21:57:24,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 21:57:24,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-01 21:57:24,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 21:57:24,816 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-01 21:57:24,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 21:57:26,063 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:57:26,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402665234] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 21:57:26,064 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 21:57:26,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 17] total 41 [2022-03-01 21:57:26,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136601921] [2022-03-01 21:57:26,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 21:57:26,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-03-01 21:57:26,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:57:26,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-03-01 21:57:26,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1416, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 21:57:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:57:26,066 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:57:26,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.7560975609756095) internal successors, (236), 41 states have internal predecessors, (236), 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) [2022-03-01 21:57:26,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:57:26,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:57:26,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:57:26,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:57:26,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:57:26,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:57:26,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:57:26,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-01 21:57:26,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-01 21:57:26,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-01 21:57:26,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 21:57:26,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-03-01 21:57:26,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:58:18,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-01 21:58:18,646 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 128608 transitions and produced 36008 states. [2022-03-01 21:58:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:58:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:58:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:58:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:58:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:58:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:58:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:58:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 21:58:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 21:58:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 21:58:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 21:58:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-01 21:58:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 21:58:18,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-01 21:58:18,851 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,SelfDestructingSolverStorable12 [2022-03-01 21:58:18,852 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 21:58:18,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 21:58:18,852 INFO L85 PathProgramCache]: Analyzing trace with hash 504614692, now seen corresponding path program 5 times [2022-03-01 21:58:18,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 21:58:18,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156268211] [2022-03-01 21:58:18,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 21:58:18,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 21:58:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 21:58:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:58:19,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 21:58:19,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156268211] [2022-03-01 21:58:19,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156268211] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 21:58:19,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662389341] [2022-03-01 21:58:19,133 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 21:58:19,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 21:58:19,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 21:58:19,144 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) [2022-03-01 21:58:19,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-01 21:58:19,251 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-01 21:58:19,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 21:58:19,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-01 21:58:19,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 21:58:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:58:19,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 21:58:20,537 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 21:58:20,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662389341] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 21:58:20,537 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 21:58:20,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 16] total 46 [2022-03-01 21:58:20,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885661033] [2022-03-01 21:58:20,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 21:58:20,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-01 21:58:20,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 21:58:20,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-01 21:58:20,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=1701, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 21:58:20,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:58:20,553 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 21:58:20,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.6521739130434785) internal successors, (214), 46 states have internal predecessors, (214), 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) [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-01 21:58:20,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.