/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 20:53:27,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 20:53:27,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 20:53:27,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-18 20:53:27,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-18 20:53:27,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-18 20:53:27,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-18 20:53:27,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-18 20:53:27,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-18 20:53:27,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-18 20:53:27,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-18 20:53:27,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-18 20:53:27,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-18 20:53:27,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-18 20:53:27,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-18 20:53:27,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-18 20:53:27,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-18 20:53:27,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-18 20:53:27,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-18 20:53:27,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-18 20:53:27,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-18 20:53:27,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-18 20:53:27,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-18 20:53:27,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-18 20:53:27,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-18 20:53:27,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-18 20:53:27,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-18 20:53:27,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-18 20:53:27,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-18 20:53:27,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-18 20:53:27,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-18 20:53:27,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-18 20:53:27,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-18 20:53:27,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 20:53:27,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 20:53:27,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 20:53:27,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2022-02-18 20:53:27,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 20:53:27,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 20:53:27,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 20:53:27,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 20:53:27,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 20:53:27,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 20:53:27,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 20:53:27,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 20:53:27,386 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 20:53:27,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 20:53:27,387 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 20:53:27,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 20:53:27,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 20:53:27,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 20:53:27,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 20:53:27,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 20:53:27,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 20:53:27,388 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 20:53:27,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 20:53:27,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 20:53:27,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 20:53:27,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 20:53:27,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 20:53:27,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 20:53:27,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 20:53:27,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 20:53:27,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 20:53:27,390 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-18 20:53:27,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 20:53:27,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 20:53:27,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 20:53:27,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 20:53:27,391 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 20:53:27,391 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-18 20:53:27,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 20:53:27,392 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-18 20:53:27,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 20:53:27,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 20:53:27,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 20:53:27,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 20:53:27,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 20:53:27,646 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 20:53:27,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2022-02-18 20:53:27,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb96bac19/7e63779498624b769b32bd873d1e15a8/FLAG9036c77cc [2022-02-18 20:53:28,126 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 20:53:28,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2022-02-18 20:53:28,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb96bac19/7e63779498624b769b32bd873d1e15a8/FLAG9036c77cc [2022-02-18 20:53:28,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb96bac19/7e63779498624b769b32bd873d1e15a8 [2022-02-18 20:53:28,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 20:53:28,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 20:53:28,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 20:53:28,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 20:53:28,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 20:53:28,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba92daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28, skipping insertion in model container [2022-02-18 20:53:28,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 20:53:28,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 20:53:28,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c[2650,2663] [2022-02-18 20:53:28,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 20:53:28,439 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 20:53:28,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c[2650,2663] [2022-02-18 20:53:28,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 20:53:28,486 INFO L208 MainTranslator]: Completed translation [2022-02-18 20:53:28,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28 WrapperNode [2022-02-18 20:53:28,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 20:53:28,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 20:53:28,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 20:53:28,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 20:53:28,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,535 INFO L137 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 142 [2022-02-18 20:53:28,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 20:53:28,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 20:53:28,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 20:53:28,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 20:53:28,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 20:53:28,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 20:53:28,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 20:53:28,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 20:53:28,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (1/1) ... [2022-02-18 20:53:28,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 20:53:28,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:53:28,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-18 20:53:28,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-18 20:53:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 20:53:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 20:53:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 20:53:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 20:53:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 20:53:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 20:53:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 20:53:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 20:53:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 20:53:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 20:53:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-18 20:53:28,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 20:53:28,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 20:53:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-18 20:53:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 20:53:28,654 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 20:53:28,745 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 20:53:28,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 20:53:28,984 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 20:53:29,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 20:53:29,039 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-18 20:53:29,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:29 BoogieIcfgContainer [2022-02-18 20:53:29,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 20:53:29,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 20:53:29,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 20:53:29,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 20:53:29,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:53:28" (1/3) ... [2022-02-18 20:53:29,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae823e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:53:29, skipping insertion in model container [2022-02-18 20:53:29,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:53:28" (2/3) ... [2022-02-18 20:53:29,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae823e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:53:29, skipping insertion in model container [2022-02-18 20:53:29,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:53:29" (3/3) ... [2022-02-18 20:53:29,047 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-send-receive-alt.wvr.c [2022-02-18 20:53:29,051 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 20:53:29,051 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 20:53:29,051 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 20:53:29,051 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 20:53:29,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,085 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,085 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,085 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,088 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,089 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,090 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,090 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,090 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,090 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,091 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,094 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,099 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,100 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 20:53:29,103 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-18 20:53:29,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-18 20:53:29,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:53:29,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-18 20:53:29,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-18 20:53:29,176 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 20:53:29,182 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 20:53:29,182 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-18 20:53:29,272 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:29,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:29,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1498460349, now seen corresponding path program 1 times [2022-02-18 20:53:29,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:29,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121578521] [2022-02-18 20:53:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:29,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:29,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:29,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121578521] [2022-02-18 20:53:29,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121578521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 20:53:29,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 20:53:29,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 20:53:29,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572205013] [2022-02-18 20:53:29,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 20:53:29,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 20:53:29,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:29,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 20:53:29,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 20:53:29,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:29,504 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:29,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.5) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:29,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:29,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:29,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 20:53:29,559 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:29,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:29,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1777164753, now seen corresponding path program 1 times [2022-02-18 20:53:29,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:29,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418335744] [2022-02-18 20:53:29,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:29,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:29,760 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:29,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418335744] [2022-02-18 20:53:29,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418335744] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 20:53:29,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 20:53:29,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-18 20:53:29,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547499985] [2022-02-18 20:53:29,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 20:53:29,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 20:53:29,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:29,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 20:53:29,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-18 20:53:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:29,764 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:29,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:29,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:29,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:29,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:29,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 20:53:29,919 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:29,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:29,920 INFO L85 PathProgramCache]: Analyzing trace with hash 610642952, now seen corresponding path program 1 times [2022-02-18 20:53:29,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:29,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936885311] [2022-02-18 20:53:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:29,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:30,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:30,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:30,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936885311] [2022-02-18 20:53:30,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936885311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 20:53:30,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 20:53:30,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 20:53:30,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951322196] [2022-02-18 20:53:30,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 20:53:30,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 20:53:30,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:30,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 20:53:30,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 20:53:30,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:30,168 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:30,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:30,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:30,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:30,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:30,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 20:53:30,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:30,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:30,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1971911702, now seen corresponding path program 1 times [2022-02-18 20:53:30,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:30,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564238488] [2022-02-18 20:53:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:30,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:30,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:30,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564238488] [2022-02-18 20:53:30,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564238488] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 20:53:30,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 20:53:30,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 20:53:30,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099947047] [2022-02-18 20:53:30,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 20:53:30,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 20:53:30,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:30,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 20:53:30,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-18 20:53:30,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:30,365 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:30,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:30,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:30,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:30,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:30,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:30,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:30,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 20:53:30,635 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:30,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:30,637 INFO L85 PathProgramCache]: Analyzing trace with hash 586278699, now seen corresponding path program 1 times [2022-02-18 20:53:30,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:30,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736193158] [2022-02-18 20:53:30,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:30,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:30,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 20:53:30,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:30,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736193158] [2022-02-18 20:53:30,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736193158] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:53:30,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180227494] [2022-02-18 20:53:30,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:30,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:53:30,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:53:30,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:53:30,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 20:53:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:31,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 60 conjunts are in the unsatisfiable core [2022-02-18 20:53:31,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:53:31,121 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 20:53:31,729 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-18 20:53:31,730 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-18 20:53:31,963 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 20:53:32,344 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 20:53:32,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 20:53:32,647 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-18 20:53:32,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:32,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:53:33,994 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 20:53:33,995 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 70 [2022-02-18 20:53:34,005 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 20:53:34,006 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 226 treesize of output 218 [2022-02-18 20:53:34,031 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 20:53:34,032 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 182 [2022-02-18 20:53:34,043 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 20:53:34,046 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 164 [2022-02-18 20:53:35,774 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-02-18 20:53:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:35,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180227494] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:53:35,841 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:53:35,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 27, 25] total 51 [2022-02-18 20:53:35,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110580413] [2022-02-18 20:53:35,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:53:35,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-18 20:53:35,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-18 20:53:35,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=612, Invalid=1881, Unknown=57, NotChecked=0, Total=2550 [2022-02-18 20:53:35,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:35,845 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:35,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.352941176470588) internal successors, (273), 51 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:35,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:35,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:35,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:35,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:35,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:37,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-18 20:53:37,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-18 20:53:37,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:53:37,826 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:37,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:37,827 INFO L85 PathProgramCache]: Analyzing trace with hash 365895307, now seen corresponding path program 2 times [2022-02-18 20:53:37,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:37,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445671905] [2022-02-18 20:53:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:37,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 20:53:37,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:37,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445671905] [2022-02-18 20:53:37,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445671905] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:53:37,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539695927] [2022-02-18 20:53:37,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 20:53:37,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:53:37,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:53:37,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:53:37,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 20:53:38,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 20:53:38,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:53:38,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-18 20:53:38,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:53:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 20:53:38,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 20:53:38,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539695927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 20:53:38,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 20:53:38,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2022-02-18 20:53:38,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777769136] [2022-02-18 20:53:38,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 20:53:38,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-18 20:53:38,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:38,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-18 20:53:38,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-18 20:53:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:38,264 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:38,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-18 20:53:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-18 20:53:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:38,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-18 20:53:38,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:53:38,537 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:38,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:38,537 INFO L85 PathProgramCache]: Analyzing trace with hash -486951623, now seen corresponding path program 1 times [2022-02-18 20:53:38,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:38,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860215546] [2022-02-18 20:53:38,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:38,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-18 20:53:38,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:38,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860215546] [2022-02-18 20:53:38,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860215546] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 20:53:38,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 20:53:38,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-18 20:53:38,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94737016] [2022-02-18 20:53:38,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 20:53:38,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-18 20:53:38,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:38,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-18 20:53:38,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-18 20:53:38,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:38,627 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:38,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:38,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:38,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:38,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:38,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:38,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-18 20:53:38,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:38,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 20:53:38,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:38,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:38,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 20:53:38,685 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:38,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:38,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1342782591, now seen corresponding path program 2 times [2022-02-18 20:53:38,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:38,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120829381] [2022-02-18 20:53:38,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-18 20:53:38,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:38,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120829381] [2022-02-18 20:53:38,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120829381] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:53:38,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860101907] [2022-02-18 20:53:38,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 20:53:38,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:53:38,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:53:38,894 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:53:38,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 20:53:39,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 20:53:39,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:53:39,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-18 20:53:39,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:53:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:39,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:53:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:40,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860101907] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:53:40,000 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:53:40,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 27 [2022-02-18 20:53:40,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062629568] [2022-02-18 20:53:40,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:53:40,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-18 20:53:40,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:40,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-18 20:53:40,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2022-02-18 20:53:40,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:40,002 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:40,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.555555555555555) internal successors, (258), 27 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:40,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:40,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:40,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:40,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:40,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-18 20:53:40,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:40,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:40,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:40,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:53:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-18 20:53:40,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-18 20:53:41,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:53:41,186 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:41,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:41,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1544058469, now seen corresponding path program 3 times [2022-02-18 20:53:41,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:41,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718391106] [2022-02-18 20:53:41,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:41,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:42,088 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:42,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:42,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718391106] [2022-02-18 20:53:42,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718391106] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:53:42,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088921332] [2022-02-18 20:53:42,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 20:53:42,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:53:42,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:53:42,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:53:42,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-18 20:53:42,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-18 20:53:42,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:53:42,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 59 conjunts are in the unsatisfiable core [2022-02-18 20:53:42,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:53:44,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 20:53:44,005 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 20:53:44,005 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 14 [2022-02-18 20:53:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:44,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:53:44,605 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-02-18 20:53:44,605 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 78 [2022-02-18 20:53:46,050 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:46,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088921332] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:53:46,050 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:53:46,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 29, 24] total 60 [2022-02-18 20:53:46,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723484014] [2022-02-18 20:53:46,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:53:46,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-18 20:53:46,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:46,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-18 20:53:46,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=2870, Unknown=0, NotChecked=0, Total=3540 [2022-02-18 20:53:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:46,054 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:46,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 4.866666666666666) internal successors, (292), 60 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:46,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:46,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:46,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:46,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:46,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:53:46,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:46,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:46,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-18 20:53:46,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:50,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:53:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:53:50,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-18 20:53:50,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-18 20:53:50,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:53:50,411 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:53:50,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:53:50,412 INFO L85 PathProgramCache]: Analyzing trace with hash 588419745, now seen corresponding path program 4 times [2022-02-18 20:53:50,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:53:50,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345157560] [2022-02-18 20:53:50,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:53:50,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:53:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:53:51,479 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:51,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:53:51,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345157560] [2022-02-18 20:53:51,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345157560] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:53:51,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555376966] [2022-02-18 20:53:51,479 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 20:53:51,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:53:51,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:53:51,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:53:51,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-18 20:53:51,566 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 20:53:51,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:53:51,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 72 conjunts are in the unsatisfiable core [2022-02-18 20:53:51,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:53:53,962 INFO L353 Elim1Store]: treesize reduction 241, result has 4.0 percent of original size [2022-02-18 20:53:53,962 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 68 treesize of output 27 [2022-02-18 20:53:54,046 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:54,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:53:55,027 INFO L353 Elim1Store]: treesize reduction 168, result has 33.1 percent of original size [2022-02-18 20:53:55,027 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 114 [2022-02-18 20:53:58,295 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:53:58,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555376966] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:53:58,296 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:53:58,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29, 28] total 78 [2022-02-18 20:53:58,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047777990] [2022-02-18 20:53:58,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:53:58,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-18 20:53:58,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:53:58,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-18 20:53:58,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=843, Invalid=5163, Unknown=0, NotChecked=0, Total=6006 [2022-02-18 20:53:58,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:58,299 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:53:58,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 5.0) internal successors, (390), 78 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-02-18 20:53:58,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-18 20:54:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-18 20:54:01,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-18 20:54:01,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:54:01,819 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:54:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:54:01,820 INFO L85 PathProgramCache]: Analyzing trace with hash -515013431, now seen corresponding path program 5 times [2022-02-18 20:54:01,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:54:01,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311271093] [2022-02-18 20:54:01,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:54:01,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:54:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:54:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 44 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:02,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:54:02,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311271093] [2022-02-18 20:54:02,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311271093] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:54:02,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879229407] [2022-02-18 20:54:02,325 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 20:54:02,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:54:02,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:54:02,328 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:54:02,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-18 20:54:02,449 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-02-18 20:54:02,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:54:02,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-18 20:54:02,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:54:03,189 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 58 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:03,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:54:03,859 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 41 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:03,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879229407] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:54:03,859 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:54:03,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 20] total 53 [2022-02-18 20:54:03,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925889702] [2022-02-18 20:54:03,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:54:03,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-18 20:54:03,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:54:03,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-18 20:54:03,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=2416, Unknown=0, NotChecked=0, Total=2756 [2022-02-18 20:54:03,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:03,861 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:54:03,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 6.830188679245283) internal successors, (362), 53 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:54:03,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:03,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:03,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:03,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:03,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:03,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:03,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:03,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:03,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-18 20:54:03,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-18 20:54:03,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-18 20:54:08,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:54:08,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-18 20:54:09,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:54:09,036 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:54:09,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:54:09,037 INFO L85 PathProgramCache]: Analyzing trace with hash -2143732352, now seen corresponding path program 6 times [2022-02-18 20:54:09,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:54:09,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229274650] [2022-02-18 20:54:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:54:09,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:54:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:54:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-02-18 20:54:09,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:54:09,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229274650] [2022-02-18 20:54:09,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229274650] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:54:09,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047061720] [2022-02-18 20:54:09,320 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 20:54:09,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:54:09,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:54:09,321 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:54:09,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-18 20:54:09,595 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-02-18 20:54:09,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:54:09,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 44 conjunts are in the unsatisfiable core [2022-02-18 20:54:09,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:54:10,321 INFO L353 Elim1Store]: treesize reduction 166, result has 4.0 percent of original size [2022-02-18 20:54:10,321 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 29 [2022-02-18 20:54:10,381 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-02-18 20:54:10,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:54:10,882 INFO L353 Elim1Store]: treesize reduction 140, result has 46.4 percent of original size [2022-02-18 20:54:10,883 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 110 treesize of output 152 [2022-02-18 20:54:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-02-18 20:54:11,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047061720] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:54:11,655 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:54:11,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 12] total 25 [2022-02-18 20:54:11,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6155448] [2022-02-18 20:54:11,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:54:11,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 20:54:11,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:54:11,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 20:54:11,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2022-02-18 20:54:11,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:11,657 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:54:11,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.56) internal successors, (289), 25 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:54:11,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:11,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:11,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:11,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:11,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:11,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:11,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:11,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:11,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-02-18 20:54:11,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-18 20:54:11,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:54:11,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:54:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-18 20:54:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:54:12,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-18 20:54:12,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-18 20:54:12,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-18 20:54:12,723 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:54:12,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:54:12,724 INFO L85 PathProgramCache]: Analyzing trace with hash 768680955, now seen corresponding path program 7 times [2022-02-18 20:54:12,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:54:12,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382055927] [2022-02-18 20:54:12,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:54:12,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:54:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:54:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 78 proven. 151 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 20:54:13,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:54:13,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382055927] [2022-02-18 20:54:13,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382055927] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:54:13,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330195066] [2022-02-18 20:54:13,376 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-18 20:54:13,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:54:13,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:54:13,378 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:54:13,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-18 20:54:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:54:13,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 27 conjunts are in the unsatisfiable core [2022-02-18 20:54:13,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:54:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 147 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:14,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:54:15,495 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 125 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:15,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330195066] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:54:15,496 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:54:15,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24, 24] total 66 [2022-02-18 20:54:15,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997527008] [2022-02-18 20:54:15,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:54:15,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-18 20:54:15,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:54:15,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-18 20:54:15,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=548, Invalid=3742, Unknown=0, NotChecked=0, Total=4290 [2022-02-18 20:54:15,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:15,499 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:54:15,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 7.303030303030303) internal successors, (482), 66 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:54:15,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-18 20:54:15,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:54:15,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-02-18 20:54:15,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:19,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:19,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:19,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:19,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:19,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:54:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:54:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:54:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 20:54:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-18 20:54:19,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-18 20:54:19,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-18 20:54:19,912 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:54:19,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:54:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1257828555, now seen corresponding path program 8 times [2022-02-18 20:54:19,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:54:19,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820897765] [2022-02-18 20:54:19,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:54:19,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:54:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:54:21,977 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:21,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:54:21,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820897765] [2022-02-18 20:54:21,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820897765] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:54:21,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175205469] [2022-02-18 20:54:21,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 20:54:21,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:54:21,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:54:21,979 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:54:21,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-18 20:54:22,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 20:54:22,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:54:22,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 69 conjunts are in the unsatisfiable core [2022-02-18 20:54:22,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:54:24,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 20:54:24,014 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 20:54:24,014 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 14 [2022-02-18 20:54:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:24,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:54:24,618 INFO L353 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-02-18 20:54:24,618 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 78 [2022-02-18 20:54:26,185 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 2 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:26,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175205469] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:54:26,185 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:54:26,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 32, 27] total 72 [2022-02-18 20:54:26,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494996442] [2022-02-18 20:54:26,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:54:26,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-18 20:54:26,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:54:26,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-18 20:54:26,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=767, Invalid=4345, Unknown=0, NotChecked=0, Total=5112 [2022-02-18 20:54:26,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:26,188 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:54:26,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 5.208333333333333) internal successors, (375), 72 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:54:26,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:26,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:26,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:26,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:26,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:54:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:54:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:54:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-18 20:54:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-18 20:54:26,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 20:54:30,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-18 20:54:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:54:30,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-18 20:54:30,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-18 20:54:30,385 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:54:30,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:54:30,385 INFO L85 PathProgramCache]: Analyzing trace with hash 224980313, now seen corresponding path program 9 times [2022-02-18 20:54:30,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:54:30,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352433377] [2022-02-18 20:54:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:54:30,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:54:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:54:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 7 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:34,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:54:34,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352433377] [2022-02-18 20:54:34,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352433377] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:54:34,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490814878] [2022-02-18 20:54:34,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 20:54:34,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:54:34,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:54:34,858 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:54:34,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-18 20:54:34,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-18 20:54:34,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:54:34,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 38 conjunts are in the unsatisfiable core [2022-02-18 20:54:34,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:54:36,264 INFO L353 Elim1Store]: treesize reduction 251, result has 3.8 percent of original size [2022-02-18 20:54:36,265 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 70 treesize of output 27 [2022-02-18 20:54:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 12 proven. 66 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-18 20:54:36,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:54:36,904 INFO L353 Elim1Store]: treesize reduction 140, result has 46.4 percent of original size [2022-02-18 20:54:36,904 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 110 treesize of output 152 [2022-02-18 20:54:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 10 proven. 68 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-18 20:54:37,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490814878] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:54:37,665 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:54:37,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 12, 12] total 50 [2022-02-18 20:54:37,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348696683] [2022-02-18 20:54:37,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:54:37,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-18 20:54:37,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:54:37,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-18 20:54:37,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=2127, Unknown=0, NotChecked=0, Total=2450 [2022-02-18 20:54:37,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:37,667 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:54:37,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 8.14) internal successors, (407), 50 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:54:37,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:54:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:54:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:54:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-18 20:54:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-18 20:54:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:54:40,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-18 20:54:40,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-18 20:54:40,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-18 20:54:40,448 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:54:40,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:54:40,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2025086210, now seen corresponding path program 10 times [2022-02-18 20:54:40,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:54:40,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334248330] [2022-02-18 20:54:40,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:54:40,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:54:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:54:42,255 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 36 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:42,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:54:42,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334248330] [2022-02-18 20:54:42,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334248330] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:54:42,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366298021] [2022-02-18 20:54:42,256 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 20:54:42,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:54:42,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:54:42,257 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:54:42,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-18 20:54:42,357 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 20:54:42,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:54:42,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 96 conjunts are in the unsatisfiable core [2022-02-18 20:54:42,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:54:45,159 INFO L353 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-02-18 20:54:45,160 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 99 treesize of output 29 [2022-02-18 20:54:45,191 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 12 proven. 194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:45,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:54:46,749 INFO L353 Elim1Store]: treesize reduction 358, result has 27.1 percent of original size [2022-02-18 20:54:46,750 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 145 treesize of output 172 [2022-02-18 20:54:49,474 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 5 proven. 201 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:54:49,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366298021] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:54:49,474 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:54:49,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 34, 33] total 99 [2022-02-18 20:54:49,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922809628] [2022-02-18 20:54:49,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:54:49,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-02-18 20:54:49,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:54:49,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-02-18 20:54:49,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1310, Invalid=8392, Unknown=0, NotChecked=0, Total=9702 [2022-02-18 20:54:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:49,478 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:54:49,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 5.212121212121212) internal successors, (516), 99 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:54:49,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:49,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:49,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:49,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:49,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:49,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:49,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:49,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:49,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:54:49,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:54:49,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:54:49,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-18 20:54:49,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-18 20:54:49,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:54:49,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-18 20:54:49,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:54:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-18 20:54:58,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-18 20:54:58,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-18 20:54:58,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-18 20:54:58,348 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:54:58,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:54:58,349 INFO L85 PathProgramCache]: Analyzing trace with hash -383072314, now seen corresponding path program 11 times [2022-02-18 20:54:58,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:54:58,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277957618] [2022-02-18 20:54:58,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:54:58,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:54:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:55:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:55:00,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:55:00,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277957618] [2022-02-18 20:55:00,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277957618] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:55:00,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736764290] [2022-02-18 20:55:00,262 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 20:55:00,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:00,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:55:00,264 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:55:00,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-18 20:55:00,534 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-18 20:55:00,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:55:00,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 71 conjunts are in the unsatisfiable core [2022-02-18 20:55:00,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:55:01,754 INFO L353 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-02-18 20:55:01,754 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 24 [2022-02-18 20:55:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 20:55:01,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:55:02,682 INFO L353 Elim1Store]: treesize reduction 274, result has 44.2 percent of original size [2022-02-18 20:55:02,682 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 145 treesize of output 256 [2022-02-18 20:55:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 11 proven. 77 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-18 20:55:03,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736764290] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:55:03,611 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:55:03,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 22, 13] total 61 [2022-02-18 20:55:03,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848751305] [2022-02-18 20:55:03,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:55:03,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-02-18 20:55:03,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:55:03,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-02-18 20:55:03,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=3318, Unknown=0, NotChecked=0, Total=3660 [2022-02-18 20:55:03,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:03,614 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:55:03,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 7.262295081967213) internal successors, (443), 61 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:55:03,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:03,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:03,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:03,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-18 20:55:03,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-18 20:55:10,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:55:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-18 20:55:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-18 20:55:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-18 20:55:10,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-02-18 20:55:10,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-02-18 20:55:10,649 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:55:10,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:55:10,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1241455147, now seen corresponding path program 12 times [2022-02-18 20:55:10,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:55:10,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977284792] [2022-02-18 20:55:10,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:55:10,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:55:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:55:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:55:12,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:55:12,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977284792] [2022-02-18 20:55:12,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977284792] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:55:12,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327691246] [2022-02-18 20:55:12,974 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 20:55:12,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:55:12,975 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:55:12,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-18 20:55:13,203 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-02-18 20:55:13,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:55:13,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 56 conjunts are in the unsatisfiable core [2022-02-18 20:55:13,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:55:14,112 INFO L353 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2022-02-18 20:55:14,113 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 18 [2022-02-18 20:55:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-18 20:55:14,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:55:14,724 INFO L353 Elim1Store]: treesize reduction 140, result has 46.4 percent of original size [2022-02-18 20:55:14,725 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 110 treesize of output 152 [2022-02-18 20:55:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-18 20:55:15,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327691246] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:55:15,472 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:55:15,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 19, 12] total 54 [2022-02-18 20:55:15,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420470018] [2022-02-18 20:55:15,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:55:15,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-18 20:55:15,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:55:15,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-18 20:55:15,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2575, Unknown=0, NotChecked=0, Total=2862 [2022-02-18 20:55:15,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:15,474 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:55:15,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 7.296296296296297) internal successors, (394), 54 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-18 20:55:15,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-18 20:55:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-18 20:55:19,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-18 20:55:19,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:19,316 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:55:19,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:55:19,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1903566292, now seen corresponding path program 13 times [2022-02-18 20:55:19,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:55:19,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44012197] [2022-02-18 20:55:19,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:55:19,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:55:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:55:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-18 20:55:19,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:55:19,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44012197] [2022-02-18 20:55:19,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44012197] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:55:19,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998108124] [2022-02-18 20:55:19,650 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-18 20:55:19,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:19,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:55:19,652 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:55:19,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-18 20:55:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:55:19,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 97 conjunts are in the unsatisfiable core [2022-02-18 20:55:19,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:55:22,027 INFO L353 Elim1Store]: treesize reduction 105, result has 0.9 percent of original size [2022-02-18 20:55:22,028 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 24 [2022-02-18 20:55:22,059 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:55:22,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:55:23,667 INFO L353 Elim1Store]: treesize reduction 274, result has 44.2 percent of original size [2022-02-18 20:55:23,668 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 145 treesize of output 256 [2022-02-18 20:55:26,757 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 7 proven. 199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:55:26,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998108124] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:55:26,757 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:55:26,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 34, 33] total 71 [2022-02-18 20:55:26,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491920914] [2022-02-18 20:55:26,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:55:26,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-02-18 20:55:26,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:55:26,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-02-18 20:55:26,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=825, Invalid=4145, Unknown=0, NotChecked=0, Total=4970 [2022-02-18 20:55:26,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:26,761 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:55:26,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 6.71830985915493) internal successors, (477), 71 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:55:26,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:26,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:26,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:26,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:26,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:26,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:26,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-18 20:55:26,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-18 20:55:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-18 20:55:32,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-18 20:55:32,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:32,817 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:55:32,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:55:32,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1011690358, now seen corresponding path program 14 times [2022-02-18 20:55:32,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:55:32,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051492284] [2022-02-18 20:55:32,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:55:32,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:55:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:55:33,179 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 209 proven. 191 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-18 20:55:33,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:55:33,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051492284] [2022-02-18 20:55:33,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051492284] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:55:33,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626380513] [2022-02-18 20:55:33,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 20:55:33,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:33,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:55:33,181 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:55:33,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-18 20:55:33,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 20:55:33,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:55:33,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-18 20:55:33,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:55:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 49 proven. 358 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:55:35,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:55:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 247 proven. 129 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-02-18 20:55:36,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626380513] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:55:36,945 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:55:36,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 34, 28] total 86 [2022-02-18 20:55:36,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542868922] [2022-02-18 20:55:36,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:55:36,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-18 20:55:36,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:55:36,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-18 20:55:36,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=988, Invalid=6322, Unknown=0, NotChecked=0, Total=7310 [2022-02-18 20:55:36,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:36,948 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:55:36,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 6.5813953488372094) internal successors, (566), 86 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:55:36,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:36,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:36,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:36,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:36,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:36,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:36,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:36,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-18 20:55:36,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-18 20:55:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-18 20:55:42,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-02-18 20:55:42,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:42,559 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:55:42,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:55:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1754168736, now seen corresponding path program 15 times [2022-02-18 20:55:42,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:55:42,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846217087] [2022-02-18 20:55:42,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:55:42,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:55:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:55:43,025 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-02-18 20:55:43,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:55:43,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846217087] [2022-02-18 20:55:43,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846217087] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:55:43,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846479042] [2022-02-18 20:55:43,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 20:55:43,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:43,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:55:43,027 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:55:43,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-18 20:55:43,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-02-18 20:55:43,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:55:43,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 86 conjunts are in the unsatisfiable core [2022-02-18 20:55:43,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:55:44,866 INFO L353 Elim1Store]: treesize reduction 620, result has 2.1 percent of original size [2022-02-18 20:55:44,866 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 118 treesize of output 42 [2022-02-18 20:55:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 12 proven. 241 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 20:55:44,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:55:46,214 INFO L353 Elim1Store]: treesize reduction 452, result has 43.0 percent of original size [2022-02-18 20:55:46,214 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 178 treesize of output 386 [2022-02-18 20:55:47,428 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 11 proven. 133 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-02-18 20:55:47,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846479042] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:55:47,428 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:55:47,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 27, 16] total 46 [2022-02-18 20:55:47,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307017241] [2022-02-18 20:55:47,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:55:47,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-18 20:55:47,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:55:47,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-18 20:55:47,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1776, Unknown=0, NotChecked=0, Total=2070 [2022-02-18 20:55:47,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:47,429 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:55:47,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.0) internal successors, (414), 46 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-18 20:55:47,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:47,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-18 20:55:47,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-18 20:55:47,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-18 20:55:47,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:50,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:55:50,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-18 20:55:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-18 20:55:50,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-18 20:55:50,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:50,279 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:55:50,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:55:50,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1863750950, now seen corresponding path program 16 times [2022-02-18 20:55:50,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:55:50,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949246473] [2022-02-18 20:55:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:55:50,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:55:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:55:52,166 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:55:52,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:55:52,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949246473] [2022-02-18 20:55:52,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949246473] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:55:52,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641207272] [2022-02-18 20:55:52,167 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 20:55:52,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:55:52,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:55:52,168 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:55:52,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-18 20:55:52,285 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 20:55:52,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:55:52,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 111 conjunts are in the unsatisfiable core [2022-02-18 20:55:52,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:55:56,044 INFO L353 Elim1Store]: treesize reduction 176, result has 0.6 percent of original size [2022-02-18 20:55:56,044 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 119 treesize of output 31 [2022-02-18 20:55:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:55:56,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:55:58,189 INFO L353 Elim1Store]: treesize reduction 452, result has 43.0 percent of original size [2022-02-18 20:55:58,190 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 178 treesize of output 386 [2022-02-18 20:56:01,514 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 10 proven. 298 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:56:01,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641207272] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:56:01,514 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:56:01,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 42, 41] total 117 [2022-02-18 20:56:01,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756414694] [2022-02-18 20:56:01,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:56:01,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2022-02-18 20:56:01,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:56:01,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2022-02-18 20:56:01,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2102, Invalid=11470, Unknown=0, NotChecked=0, Total=13572 [2022-02-18 20:56:01,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:01,518 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:56:01,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 117 states have (on average 4.888888888888889) internal successors, (572), 117 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-18 20:56:01,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-18 20:56:01,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-18 20:56:01,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:14,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:14,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:56:14,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:56:14,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-18 20:56:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-18 20:56:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-18 20:56:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:56:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:56:14,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-02-18 20:56:14,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:56:14,861 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:56:14,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:56:14,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1912927478, now seen corresponding path program 17 times [2022-02-18 20:56:14,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:56:14,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372842860] [2022-02-18 20:56:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:56:14,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:56:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:56:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-02-18 20:56:15,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:56:15,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372842860] [2022-02-18 20:56:15,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372842860] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:56:15,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874194996] [2022-02-18 20:56:15,280 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 20:56:15,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:56:15,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:56:15,281 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:56:15,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-02-18 20:56:15,436 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-02-18 20:56:15,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:56:15,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 86 conjunts are in the unsatisfiable core [2022-02-18 20:56:15,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:56:16,882 INFO L353 Elim1Store]: treesize reduction 176, result has 0.6 percent of original size [2022-02-18 20:56:16,882 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 119 treesize of output 31 [2022-02-18 20:56:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 20:56:16,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:56:18,048 INFO L353 Elim1Store]: treesize reduction 452, result has 43.0 percent of original size [2022-02-18 20:56:18,048 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 176 treesize of output 384 [2022-02-18 20:56:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 22 proven. 122 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-02-18 20:56:19,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874194996] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:56:19,259 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:56:19,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 27, 16] total 44 [2022-02-18 20:56:19,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378823238] [2022-02-18 20:56:19,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:56:19,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-18 20:56:19,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:56:19,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-18 20:56:19,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1629, Unknown=0, NotChecked=0, Total=1892 [2022-02-18 20:56:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:19,260 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:56:19,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.681818181818182) internal successors, (382), 44 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:56:19,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:19,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-02-18 20:56:19,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-18 20:56:19,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:19,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-02-18 20:56:19,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-02-18 20:56:19,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-02-18 20:56:19,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:56:19,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:56:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:56:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:56:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:56:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-18 20:56:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-18 20:56:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-18 20:56:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-18 20:56:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-18 20:56:22,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-02-18 20:56:22,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:56:22,854 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:56:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:56:22,854 INFO L85 PathProgramCache]: Analyzing trace with hash -388326776, now seen corresponding path program 18 times [2022-02-18 20:56:22,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:56:22,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195128938] [2022-02-18 20:56:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:56:22,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:56:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:56:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 365 proven. 247 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-18 20:56:23,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:56:23,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195128938] [2022-02-18 20:56:23,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195128938] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:56:23,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198576577] [2022-02-18 20:56:23,318 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 20:56:23,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:56:23,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:56:23,320 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:56:23,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-02-18 20:56:23,797 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-02-18 20:56:23,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 20:56:23,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 35 conjunts are in the unsatisfiable core [2022-02-18 20:56:23,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:56:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 373 proven. 154 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-02-18 20:56:25,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:56:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 258 proven. 269 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-02-18 20:56:26,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198576577] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 20:56:26,473 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 20:56:26,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27, 27] total 80 [2022-02-18 20:56:26,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025769306] [2022-02-18 20:56:26,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 20:56:26,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-18 20:56:26,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 20:56:26,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-18 20:56:26,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=631, Invalid=5689, Unknown=0, NotChecked=0, Total=6320 [2022-02-18 20:56:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:26,475 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 20:56:26,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 7.0) internal successors, (560), 80 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-02-18 20:56:26,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-02-18 20:56:26,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-18 20:56:26,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-02-18 20:56:26,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-18 20:56:26,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-18 20:56:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:56:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 20:56:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-02-18 20:56:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-18 20:56:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-18 20:56:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-18 20:56:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-18 20:56:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-18 20:56:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-18 20:56:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-18 20:56:30,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 20:56:30,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-02-18 20:56:30,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-02-18 20:56:30,747 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 20:56:30,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 20:56:30,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2013233122, now seen corresponding path program 19 times [2022-02-18 20:56:30,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 20:56:30,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80869025] [2022-02-18 20:56:30,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 20:56:30,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 20:56:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:56:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:56:33,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 20:56:33,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80869025] [2022-02-18 20:56:33,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80869025] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 20:56:33,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766518795] [2022-02-18 20:56:33,000 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-18 20:56:33,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 20:56:33,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 20:56:33,002 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 20:56:33,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-02-18 20:56:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 20:56:33,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 156 conjunts are in the unsatisfiable core [2022-02-18 20:56:33,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 20:56:33,173 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 20:56:33,766 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-18 20:56:33,766 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-18 20:56:34,189 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 20:56:34,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 20:56:34,706 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 20:56:34,968 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 20:56:35,238 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 20:56:35,582 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-02-18 20:56:36,072 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 20:56:36,174 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 20:56:39,330 INFO L353 Elim1Store]: treesize reduction 265, result has 0.4 percent of original size [2022-02-18 20:56:39,330 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 140 treesize of output 34 [2022-02-18 20:56:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 6 proven. 425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 20:56:39,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 20:56:53,722 INFO L353 Elim1Store]: treesize reduction 875, result has 8.2 percent of original size [2022-02-18 20:56:53,722 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 1257 treesize of output 398 [2022-02-18 20:56:54,305 INFO L353 Elim1Store]: treesize reduction 674, result has 42.2 percent of original size [2022-02-18 20:56:54,306 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 2032 treesize of output 2206 [2022-02-18 20:56:54,916 INFO L353 Elim1Store]: treesize reduction 674, result has 42.2 percent of original size [2022-02-18 20:56:54,917 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 1714 treesize of output 1960 [2022-02-18 20:56:55,520 INFO L353 Elim1Store]: treesize reduction 674, result has 42.2 percent of original size [2022-02-18 20:56:55,520 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 1468 treesize of output 1468 Received shutdown request... [2022-02-18 21:06:25,908 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-18 21:06:25,911 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-18 21:06:25,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-02-18 21:06:25,948 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-18 21:06:25,948 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-18 21:06:25,948 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-18 21:06:26,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-02-18 21:06:26,116 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 233 with TraceHistMax 7,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 9ms.. [2022-02-18 21:06:26,117 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-18 21:06:26,117 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-18 21:06:26,121 INFO L732 BasicCegarLoop]: Path program histogram: [19, 2, 1, 1, 1, 1] [2022-02-18 21:06:26,123 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 21:06:26,123 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 21:06:26,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 09:06:26 BasicIcfg [2022-02-18 21:06:26,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 21:06:26,125 INFO L158 Benchmark]: Toolchain (without parser) took 777971.17ms. Allocated memory was 180.4MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 124.2MB in the beginning and 619.9MB in the end (delta: -495.7MB). Peak memory consumption was 914.8MB. Max. memory is 8.0GB. [2022-02-18 21:06:26,126 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory was 140.7MB in the beginning and 140.5MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 21:06:26,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.88ms. Allocated memory is still 180.4MB. Free memory was 124.1MB in the beginning and 148.0MB in the end (delta: -24.0MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-02-18 21:06:26,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.57ms. Allocated memory is still 180.4MB. Free memory was 148.0MB in the beginning and 145.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-18 21:06:26,126 INFO L158 Benchmark]: Boogie Preprocessor took 33.91ms. Allocated memory is still 180.4MB. Free memory was 145.9MB in the beginning and 144.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 21:06:26,127 INFO L158 Benchmark]: RCFGBuilder took 469.41ms. Allocated memory is still 180.4MB. Free memory was 144.9MB in the beginning and 126.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-02-18 21:06:26,127 INFO L158 Benchmark]: TraceAbstraction took 777082.90ms. Allocated memory was 180.4MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 125.5MB in the beginning and 619.9MB in the end (delta: -494.4MB). Peak memory consumption was 917.0MB. Max. memory is 8.0GB. [2022-02-18 21:06:26,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory was 140.7MB in the beginning and 140.5MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 330.88ms. Allocated memory is still 180.4MB. Free memory was 124.1MB in the beginning and 148.0MB in the end (delta: -24.0MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.57ms. Allocated memory is still 180.4MB. Free memory was 148.0MB in the beginning and 145.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.91ms. Allocated memory is still 180.4MB. Free memory was 145.9MB in the beginning and 144.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 469.41ms. Allocated memory is still 180.4MB. Free memory was 144.9MB in the beginning and 126.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 777082.90ms. Allocated memory was 180.4MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 125.5MB in the beginning and 619.9MB in the end (delta: -494.4MB). Peak memory consumption was 917.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 102299, positive: 88513, positive conditional: 88513, positive unconditional: 0, negative: 13786, negative conditional: 13786, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88666, positive: 88513, positive conditional: 88513, positive unconditional: 0, negative: 153, negative conditional: 153, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 88666, positive: 88513, positive conditional: 88513, positive unconditional: 0, negative: 153, negative conditional: 153, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 90555, positive: 88513, positive conditional: 88385, positive unconditional: 128, negative: 2042, negative conditional: 1889, negative unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 90555, positive: 88513, positive conditional: 23618, positive unconditional: 64895, negative: 2042, negative conditional: 1741, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 90555, positive: 88513, positive conditional: 23618, positive unconditional: 64895, negative: 2042, negative conditional: 1741, negative unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1540, positive: 1351, positive conditional: 1000, positive unconditional: 351, negative: 189, negative conditional: 187, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1540, positive: 1295, positive conditional: 0, positive unconditional: 1295, negative: 245, negative conditional: 0, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 245, positive: 56, positive conditional: 56, positive unconditional: 0, negative: 189, negative conditional: 187, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 690, positive: 132, positive conditional: 132, positive unconditional: 0, negative: 558, negative conditional: 553, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90555, positive: 87162, positive conditional: 22618, positive unconditional: 64544, negative: 1853, negative conditional: 1554, negative unconditional: 299, unknown: 1540, unknown conditional: 1187, unknown unconditional: 353] , Statistics on independence cache: Total cache size (in pairs): 1540, Positive cache size: 1351, Positive conditional cache size: 1000, Positive unconditional cache size: 351, Negative cache size: 189, Negative conditional cache size: 187, Negative unconditional cache size: 2, Eliminated conditions: 64915, Maximal queried relation: 23, Independence queries for same thread: 13633 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 233 with TraceHistMax 7,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 9ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 233 with TraceHistMax 7,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 9ms.. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 233 with TraceHistMax 7,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 9ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 150 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 777.0s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 19, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 81.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1413, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 91.6s InterpolantComputationTime, 7138 NumberOfCodeBlocks, 7029 NumberOfCodeBlocksAsserted, 91 NumberOfCheckSat, 10272 ConstructedInterpolants, 108 QuantifiedInterpolants, 207109 SizeOfPredicates, 510 NumberOfNonLiveVariables, 7121 ConjunctsInSsa, 1102 ConjunctsInUnsatCore, 61 InterpolantComputations, 6 PerfectInterpolantSequences, 3602/10191 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown