./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19aa3a10df20aa66b298603653689263cc3fd1e3f00b1be832baa1f64aefda99 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 08:10:31,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 08:10:31,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 08:10:31,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 08:10:31,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 08:10:31,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 08:10:31,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 08:10:31,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 08:10:31,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 08:10:31,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 08:10:31,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 08:10:31,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 08:10:31,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 08:10:31,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 08:10:31,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 08:10:31,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 08:10:31,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 08:10:31,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 08:10:31,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 08:10:31,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 08:10:31,697 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 08:10:31,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 08:10:31,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 08:10:31,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 08:10:31,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 08:10:31,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 08:10:31,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 08:10:31,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 08:10:31,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 08:10:31,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 08:10:31,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 08:10:31,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 08:10:31,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 08:10:31,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 08:10:31,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 08:10:31,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 08:10:31,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 08:10:31,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 08:10:31,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 08:10:31,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 08:10:31,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 08:10:31,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 08:10:31,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 08:10:31,743 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 08:10:31,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 08:10:31,744 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 08:10:31,744 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 08:10:31,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 08:10:31,745 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 08:10:31,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 08:10:31,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 08:10:31,745 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 08:10:31,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 08:10:31,746 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 08:10:31,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 08:10:31,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 08:10:31,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 08:10:31,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 08:10:31,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 08:10:31,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 08:10:31,747 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 08:10:31,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 08:10:31,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 08:10:31,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 08:10:31,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 08:10:31,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 08:10:31,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 08:10:31,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:10:31,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 08:10:31,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 08:10:31,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 08:10:31,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 08:10:31,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 08:10:31,749 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 08:10:31,749 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 08:10:31,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 08:10:31,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19aa3a10df20aa66b298603653689263cc3fd1e3f00b1be832baa1f64aefda99 [2022-07-12 08:10:31,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 08:10:31,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 08:10:31,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 08:10:31,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 08:10:31,962 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 08:10:31,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c [2022-07-12 08:10:32,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d90a73dac/c289468aa96749c2a53c5e015ccdde16/FLAGee9d4453d [2022-07-12 08:10:32,627 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 08:10:32,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c [2022-07-12 08:10:32,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d90a73dac/c289468aa96749c2a53c5e015ccdde16/FLAGee9d4453d [2022-07-12 08:10:32,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d90a73dac/c289468aa96749c2a53c5e015ccdde16 [2022-07-12 08:10:32,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 08:10:32,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 08:10:32,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 08:10:32,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 08:10:32,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 08:10:32,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:10:32" (1/1) ... [2022-07-12 08:10:32,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3a4589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:32, skipping insertion in model container [2022-07-12 08:10:32,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:10:32" (1/1) ... [2022-07-12 08:10:32,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 08:10:32,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 08:10:34,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[377069,377082] [2022-07-12 08:10:34,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[383339,383352] [2022-07-12 08:10:34,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:10:34,383 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 08:10:34,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[377069,377082] [2022-07-12 08:10:34,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[383339,383352] [2022-07-12 08:10:35,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:10:35,061 INFO L208 MainTranslator]: Completed translation [2022-07-12 08:10:35,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35 WrapperNode [2022-07-12 08:10:35,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 08:10:35,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 08:10:35,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 08:10:35,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 08:10:35,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,397 INFO L137 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2022-07-12 08:10:35,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 08:10:35,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 08:10:35,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 08:10:35,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 08:10:35,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 08:10:35,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 08:10:35,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 08:10:35,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 08:10:35,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (1/1) ... [2022-07-12 08:10:35,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:10:35,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 08:10:35,800 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) [2022-07-12 08:10:35,819 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 [2022-07-12 08:10:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 08:10:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-12 08:10:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-12 08:10:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-12 08:10:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-12 08:10:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-12 08:10:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-12 08:10:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-12 08:10:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-12 08:10:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-12 08:10:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-12 08:10:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-12 08:10:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-12 08:10:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 08:10:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 08:10:35,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 08:10:36,019 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 08:10:36,020 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 08:10:41,185 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 08:10:41,206 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 08:10:41,207 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-12 08:10:41,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:10:41 BoogieIcfgContainer [2022-07-12 08:10:41,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 08:10:41,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 08:10:41,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 08:10:41,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 08:10:41,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 08:10:32" (1/3) ... [2022-07-12 08:10:41,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abaa40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:10:41, skipping insertion in model container [2022-07-12 08:10:41,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:10:35" (2/3) ... [2022-07-12 08:10:41,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abaa40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:10:41, skipping insertion in model container [2022-07-12 08:10:41,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:10:41" (3/3) ... [2022-07-12 08:10:41,217 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.13.cil-2.c [2022-07-12 08:10:41,227 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 08:10:41,227 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 08:10:41,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 08:10:41,315 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4dfffc6f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5107a7a4 [2022-07-12 08:10:41,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 08:10:41,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:10:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:10:41,349 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:10:41,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:10:41,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:10:41,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:10:41,354 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2022-07-12 08:10:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:10:41,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416157208] [2022-07-12 08:10:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:10:41,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:10:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:10:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:41,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:10:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:10:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:41,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:10:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:41,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:10:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:10:41,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:10:41,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416157208] [2022-07-12 08:10:41,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416157208] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:10:41,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:10:41,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 08:10:41,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16933901] [2022-07-12 08:10:41,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:10:41,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 08:10:41,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:10:41,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 08:10:41,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 08:10:41,780 INFO L87 Difference]: Start difference. First operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:43,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:10:43,650 INFO L93 Difference]: Finished difference Result 5325 states and 9765 transitions. [2022-07-12 08:10:43,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 08:10:43,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:10:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:10:43,675 INFO L225 Difference]: With dead ends: 5325 [2022-07-12 08:10:43,675 INFO L226 Difference]: Without dead ends: 2676 [2022-07-12 08:10:43,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 08:10:43,686 INFO L413 NwaCegarLoop]: 4729 mSDtfsCounter, 1107 mSDsluCounter, 12491 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 17220 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:10:43,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 17220 Invalid, 838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 08:10:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-07-12 08:10:43,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-07-12 08:10:43,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8243569131832797) internal successors, (4539), 2490 states have internal predecessors, (4539), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:10:43,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4593 transitions. [2022-07-12 08:10:43,833 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4593 transitions. Word has length 189 [2022-07-12 08:10:43,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:10:43,834 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4593 transitions. [2022-07-12 08:10:43,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:43,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4593 transitions. [2022-07-12 08:10:43,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:10:43,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:10:43,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:10:43,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 08:10:43,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:10:43,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:10:43,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1444519429, now seen corresponding path program 1 times [2022-07-12 08:10:43,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:10:43,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573148203] [2022-07-12 08:10:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:10:43,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:10:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:43,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:10:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:43,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:10:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:43,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:10:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:44,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:10:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:44,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:10:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:44,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:10:44,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:10:44,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573148203] [2022-07-12 08:10:44,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573148203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:10:44,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:10:44,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 08:10:44,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837076146] [2022-07-12 08:10:44,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:10:44,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 08:10:44,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:10:44,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 08:10:44,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 08:10:44,063 INFO L87 Difference]: Start difference. First operand 2523 states and 4593 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:45,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:10:45,389 INFO L93 Difference]: Finished difference Result 3061 states and 5463 transitions. [2022-07-12 08:10:45,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 08:10:45,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:10:45,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:10:45,400 INFO L225 Difference]: With dead ends: 3061 [2022-07-12 08:10:45,400 INFO L226 Difference]: Without dead ends: 2676 [2022-07-12 08:10:45,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 08:10:45,403 INFO L413 NwaCegarLoop]: 4659 mSDtfsCounter, 1093 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 16947 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 08:10:45,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 16947 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 08:10:45,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-07-12 08:10:45,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-07-12 08:10:45,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8239549839228295) internal successors, (4538), 2490 states have internal predecessors, (4538), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:10:45,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4592 transitions. [2022-07-12 08:10:45,461 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4592 transitions. Word has length 189 [2022-07-12 08:10:45,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:10:45,461 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4592 transitions. [2022-07-12 08:10:45,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:45,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4592 transitions. [2022-07-12 08:10:45,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:10:45,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:10:45,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:10:45,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 08:10:45,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:10:45,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:10:45,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1347349561, now seen corresponding path program 1 times [2022-07-12 08:10:45,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:10:45,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421677916] [2022-07-12 08:10:45,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:10:45,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:10:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:45,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:10:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:45,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:10:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:45,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:10:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:10:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:10:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:10:45,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:10:45,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421677916] [2022-07-12 08:10:45,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421677916] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:10:45,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:10:45,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 08:10:45,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976057948] [2022-07-12 08:10:45,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:10:45,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 08:10:45,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:10:45,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 08:10:45,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 08:10:45,601 INFO L87 Difference]: Start difference. First operand 2523 states and 4592 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:10:48,298 INFO L93 Difference]: Finished difference Result 3611 states and 6359 transitions. [2022-07-12 08:10:48,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 08:10:48,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:10:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:10:48,310 INFO L225 Difference]: With dead ends: 3611 [2022-07-12 08:10:48,310 INFO L226 Difference]: Without dead ends: 3230 [2022-07-12 08:10:48,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:10:48,319 INFO L413 NwaCegarLoop]: 4715 mSDtfsCounter, 5624 mSDsluCounter, 12879 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5644 SdHoareTripleChecker+Valid, 17594 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 08:10:48,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5644 Valid, 17594 Invalid, 2280 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 08:10:48,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-07-12 08:10:48,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2925. [2022-07-12 08:10:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7948269835721775) internal successors, (5135), 2864 states have internal predecessors, (5135), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-07-12 08:10:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5236 transitions. [2022-07-12 08:10:48,405 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5236 transitions. Word has length 189 [2022-07-12 08:10:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:10:48,406 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 5236 transitions. [2022-07-12 08:10:48,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:48,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5236 transitions. [2022-07-12 08:10:48,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:10:48,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:10:48,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:10:48,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 08:10:48,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:10:48,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:10:48,409 INFO L85 PathProgramCache]: Analyzing trace with hash 671278923, now seen corresponding path program 1 times [2022-07-12 08:10:48,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:10:48,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329765620] [2022-07-12 08:10:48,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:10:48,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:10:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:48,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:10:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:48,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:10:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:10:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:48,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:10:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:10:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:10:48,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:10:48,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329765620] [2022-07-12 08:10:48,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329765620] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:10:48,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:10:48,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:10:48,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350537758] [2022-07-12 08:10:48,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:10:48,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:10:48,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:10:48,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:10:48,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:10:48,531 INFO L87 Difference]: Start difference. First operand 2925 states and 5236 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:51,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:10:51,920 INFO L93 Difference]: Finished difference Result 4589 states and 7942 transitions. [2022-07-12 08:10:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:10:51,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:10:51,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:10:51,933 INFO L225 Difference]: With dead ends: 4589 [2022-07-12 08:10:51,933 INFO L226 Difference]: Without dead ends: 3806 [2022-07-12 08:10:51,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:10:51,945 INFO L413 NwaCegarLoop]: 5036 mSDtfsCounter, 5662 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3353 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5682 SdHoareTripleChecker+Valid, 22865 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 08:10:51,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5682 Valid, 22865 Invalid, 3435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 3353 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 08:10:51,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-07-12 08:10:52,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3298. [2022-07-12 08:10:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 3205 states have (on average 1.7703588143525741) internal successors, (5674), 3209 states have internal predecessors, (5674), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-07-12 08:10:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5821 transitions. [2022-07-12 08:10:52,050 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5821 transitions. Word has length 189 [2022-07-12 08:10:52,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:10:52,051 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5821 transitions. [2022-07-12 08:10:52,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:52,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5821 transitions. [2022-07-12 08:10:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:10:52,056 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:10:52,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:10:52,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 08:10:52,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:10:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:10:52,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1053329399, now seen corresponding path program 1 times [2022-07-12 08:10:52,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:10:52,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301718644] [2022-07-12 08:10:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:10:52,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:10:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:52,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:10:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:52,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:10:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:10:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:52,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:10:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:10:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:10:52,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:10:52,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301718644] [2022-07-12 08:10:52,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301718644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:10:52,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:10:52,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:10:52,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048890014] [2022-07-12 08:10:52,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:10:52,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:10:52,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:10:52,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:10:52,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:10:52,201 INFO L87 Difference]: Start difference. First operand 3298 states and 5821 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:55,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:10:55,625 INFO L93 Difference]: Finished difference Result 6030 states and 10255 transitions. [2022-07-12 08:10:55,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:10:55,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:10:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:10:55,666 INFO L225 Difference]: With dead ends: 6030 [2022-07-12 08:10:55,666 INFO L226 Difference]: Without dead ends: 4874 [2022-07-12 08:10:55,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:10:55,674 INFO L413 NwaCegarLoop]: 5024 mSDtfsCounter, 5656 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5676 SdHoareTripleChecker+Valid, 22853 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 08:10:55,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5676 Valid, 22853 Invalid, 3426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 08:10:55,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2022-07-12 08:10:55,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4048. [2022-07-12 08:10:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 3897 states have (on average 1.7344110854503465) internal successors, (6759), 3903 states have internal predecessors, (6759), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-07-12 08:10:55,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 7002 transitions. [2022-07-12 08:10:55,853 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 7002 transitions. Word has length 189 [2022-07-12 08:10:55,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:10:55,853 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 7002 transitions. [2022-07-12 08:10:55,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:55,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 7002 transitions. [2022-07-12 08:10:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:10:55,856 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:10:55,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:10:55,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 08:10:55,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:10:55,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:10:55,857 INFO L85 PathProgramCache]: Analyzing trace with hash -483057593, now seen corresponding path program 1 times [2022-07-12 08:10:55,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:10:55,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363367479] [2022-07-12 08:10:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:10:55,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:10:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:55,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:10:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:55,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:10:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:55,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:10:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:55,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:10:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:55,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:10:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:10:55,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:10:55,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363367479] [2022-07-12 08:10:55,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363367479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:10:55,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:10:55,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:10:55,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75942704] [2022-07-12 08:10:55,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:10:55,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:10:55,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:10:55,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:10:55,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:10:55,998 INFO L87 Difference]: Start difference. First operand 4048 states and 7002 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:59,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:10:59,191 INFO L93 Difference]: Finished difference Result 8806 states and 14680 transitions. [2022-07-12 08:10:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:10:59,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:10:59,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:10:59,212 INFO L225 Difference]: With dead ends: 8806 [2022-07-12 08:10:59,212 INFO L226 Difference]: Without dead ends: 6900 [2022-07-12 08:10:59,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:10:59,219 INFO L413 NwaCegarLoop]: 5019 mSDtfsCounter, 5655 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5675 SdHoareTripleChecker+Valid, 22848 SdHoareTripleChecker+Invalid, 3418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:10:59,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5675 Valid, 22848 Invalid, 3418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3334 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 08:10:59,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2022-07-12 08:10:59,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 5549. [2022-07-12 08:10:59,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 5282 states have (on average 1.690458159787959) internal successors, (8929), 5292 states have internal predecessors, (8929), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-07-12 08:10:59,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 9370 transitions. [2022-07-12 08:10:59,433 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 9370 transitions. Word has length 189 [2022-07-12 08:10:59,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:10:59,434 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 9370 transitions. [2022-07-12 08:10:59,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:10:59,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 9370 transitions. [2022-07-12 08:10:59,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:10:59,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:10:59,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:10:59,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 08:10:59,438 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:10:59,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:10:59,438 INFO L85 PathProgramCache]: Analyzing trace with hash 920811593, now seen corresponding path program 1 times [2022-07-12 08:10:59,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:10:59,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171191239] [2022-07-12 08:10:59,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:10:59,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:10:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:10:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:59,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:10:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:59,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:10:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:59,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:10:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:59,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:10:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:10:59,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:10:59,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:10:59,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171191239] [2022-07-12 08:10:59,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171191239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:10:59,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:10:59,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:10:59,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727193772] [2022-07-12 08:10:59,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:10:59,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:10:59,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:10:59,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:10:59,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:10:59,571 INFO L87 Difference]: Start difference. First operand 5549 states and 9370 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:11:03,115 INFO L93 Difference]: Finished difference Result 14357 states and 23546 transitions. [2022-07-12 08:11:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:11:03,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:11:03,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:11:03,143 INFO L225 Difference]: With dead ends: 14357 [2022-07-12 08:11:03,143 INFO L226 Difference]: Without dead ends: 10950 [2022-07-12 08:11:03,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:11:03,156 INFO L413 NwaCegarLoop]: 5014 mSDtfsCounter, 5654 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3326 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5674 SdHoareTripleChecker+Valid, 22843 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:11:03,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5674 Valid, 22843 Invalid, 3410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3326 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 08:11:03,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-07-12 08:11:03,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 8558. [2022-07-12 08:11:03,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8059 states have (on average 1.6477230425611118) internal successors, (13279), 8077 states have internal predecessors, (13279), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-07-12 08:11:03,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 14134 transitions. [2022-07-12 08:11:03,530 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 14134 transitions. Word has length 189 [2022-07-12 08:11:03,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:11:03,531 INFO L495 AbstractCegarLoop]: Abstraction has 8558 states and 14134 transitions. [2022-07-12 08:11:03,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 14134 transitions. [2022-07-12 08:11:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:11:03,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:11:03,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:11:03,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 08:11:03,536 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:11:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:11:03,536 INFO L85 PathProgramCache]: Analyzing trace with hash 134813703, now seen corresponding path program 1 times [2022-07-12 08:11:03,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:11:03,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235682869] [2022-07-12 08:11:03,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:11:03,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:11:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:03,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:11:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:11:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:03,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:11:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:03,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:11:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:03,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:11:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:03,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:11:03,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:11:03,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235682869] [2022-07-12 08:11:03,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235682869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:11:03,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:11:03,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:11:03,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747874126] [2022-07-12 08:11:03,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:11:03,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:11:03,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:11:03,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:11:03,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:11:03,648 INFO L87 Difference]: Start difference. First operand 8558 states and 14134 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:07,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:11:07,661 INFO L93 Difference]: Finished difference Result 25460 states and 41340 transitions. [2022-07-12 08:11:07,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:11:07,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:11:07,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:11:07,710 INFO L225 Difference]: With dead ends: 25460 [2022-07-12 08:11:07,710 INFO L226 Difference]: Without dead ends: 19044 [2022-07-12 08:11:07,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:11:07,732 INFO L413 NwaCegarLoop]: 4750 mSDtfsCounter, 5763 mSDsluCounter, 17145 mSDsCounter, 0 mSdLazyCounter, 2957 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 21895 SdHoareTripleChecker+Invalid, 3079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 2957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 08:11:07,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5783 Valid, 21895 Invalid, 3079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [122 Valid, 2957 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 08:11:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19044 states. [2022-07-12 08:11:08,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19044 to 14591. [2022-07-12 08:11:08,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.6143968300557676) internal successors, (22001), 13662 states have internal predecessors, (22001), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-12 08:11:08,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23738 transitions. [2022-07-12 08:11:08,576 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23738 transitions. Word has length 189 [2022-07-12 08:11:08,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:11:08,577 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23738 transitions. [2022-07-12 08:11:08,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:08,577 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23738 transitions. [2022-07-12 08:11:08,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:11:08,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:11:08,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:11:08,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 08:11:08,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:11:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:11:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash 802195593, now seen corresponding path program 1 times [2022-07-12 08:11:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:11:08,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130926648] [2022-07-12 08:11:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:11:08,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:11:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:08,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:11:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:08,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:11:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:11:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:08,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:11:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:08,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:11:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:11:08,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:11:08,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130926648] [2022-07-12 08:11:08,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130926648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:11:08,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:11:08,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:11:08,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780033298] [2022-07-12 08:11:08,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:11:08,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:11:08,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:11:08,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:11:08,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:11:08,724 INFO L87 Difference]: Start difference. First operand 14591 states and 23738 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:11,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:11:11,467 INFO L93 Difference]: Finished difference Result 31774 states and 51709 transitions. [2022-07-12 08:11:11,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 08:11:11,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:11:11,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:11:11,521 INFO L225 Difference]: With dead ends: 31774 [2022-07-12 08:11:11,521 INFO L226 Difference]: Without dead ends: 19325 [2022-07-12 08:11:11,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:11:11,557 INFO L413 NwaCegarLoop]: 4637 mSDtfsCounter, 5161 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5182 SdHoareTripleChecker+Valid, 21461 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 08:11:11,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5182 Valid, 21461 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 08:11:11,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2022-07-12 08:11:12,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 14591. [2022-07-12 08:11:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.611975344878192) internal successors, (21968), 13662 states have internal predecessors, (21968), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-12 08:11:12,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23705 transitions. [2022-07-12 08:11:12,452 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23705 transitions. Word has length 189 [2022-07-12 08:11:12,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:11:12,453 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23705 transitions. [2022-07-12 08:11:12,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:12,453 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23705 transitions. [2022-07-12 08:11:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:11:12,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:11:12,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:11:12,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 08:11:12,460 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:11:12,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:11:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1393033273, now seen corresponding path program 1 times [2022-07-12 08:11:12,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:11:12,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391245031] [2022-07-12 08:11:12,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:11:12,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:11:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:12,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:11:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:12,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:11:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:12,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:11:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:12,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:11:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:11:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:12,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:11:12,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:11:12,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391245031] [2022-07-12 08:11:12,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391245031] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:11:12,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:11:12,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:11:12,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169795283] [2022-07-12 08:11:12,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:11:12,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:11:12,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:11:12,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:11:12,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:11:12,596 INFO L87 Difference]: Start difference. First operand 14591 states and 23705 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:18,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:11:18,166 INFO L93 Difference]: Finished difference Result 47633 states and 76890 transitions. [2022-07-12 08:11:18,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:11:18,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:11:18,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:11:18,257 INFO L225 Difference]: With dead ends: 47633 [2022-07-12 08:11:18,258 INFO L226 Difference]: Without dead ends: 35184 [2022-07-12 08:11:18,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:11:18,289 INFO L413 NwaCegarLoop]: 4998 mSDtfsCounter, 5645 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3291 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5665 SdHoareTripleChecker+Valid, 22827 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:11:18,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5665 Valid, 22827 Invalid, 3375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3291 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 08:11:18,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35184 states. [2022-07-12 08:11:19,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35184 to 26721. [2022-07-12 08:11:19,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26721 states, 24830 states have (on average 1.5892066049134113) internal successors, (39460), 24896 states have internal predecessors, (39460), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-07-12 08:11:20,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26721 states to 26721 states and 43123 transitions. [2022-07-12 08:11:20,001 INFO L78 Accepts]: Start accepts. Automaton has 26721 states and 43123 transitions. Word has length 189 [2022-07-12 08:11:20,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:11:20,002 INFO L495 AbstractCegarLoop]: Abstraction has 26721 states and 43123 transitions. [2022-07-12 08:11:20,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:20,002 INFO L276 IsEmpty]: Start isEmpty. Operand 26721 states and 43123 transitions. [2022-07-12 08:11:20,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:11:20,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:11:20,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:11:20,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 08:11:20,015 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:11:20,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:11:20,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1048205111, now seen corresponding path program 1 times [2022-07-12 08:11:20,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:11:20,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34213495] [2022-07-12 08:11:20,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:11:20,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:11:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:20,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:11:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:11:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:20,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:11:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:11:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:11:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:20,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:11:20,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:11:20,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34213495] [2022-07-12 08:11:20,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34213495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:11:20,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:11:20,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:11:20,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351566907] [2022-07-12 08:11:20,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:11:20,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:11:20,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:11:20,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:11:20,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:11:20,141 INFO L87 Difference]: Start difference. First operand 26721 states and 43123 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:28,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:11:28,592 INFO L93 Difference]: Finished difference Result 92049 states and 148866 transitions. [2022-07-12 08:11:28,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:11:28,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:11:28,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:11:28,802 INFO L225 Difference]: With dead ends: 92049 [2022-07-12 08:11:28,803 INFO L226 Difference]: Without dead ends: 67470 [2022-07-12 08:11:28,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:11:28,854 INFO L413 NwaCegarLoop]: 4991 mSDtfsCounter, 5647 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3280 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5667 SdHoareTripleChecker+Valid, 22820 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:11:28,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5667 Valid, 22820 Invalid, 3367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 3280 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 08:11:28,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67470 states. [2022-07-12 08:11:32,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67470 to 51042. [2022-07-12 08:11:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.575938259858336) internal successors, (74534), 47425 states have internal predecessors, (74534), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-12 08:11:32,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82535 transitions. [2022-07-12 08:11:32,727 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82535 transitions. Word has length 189 [2022-07-12 08:11:32,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:11:32,728 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82535 transitions. [2022-07-12 08:11:32,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82535 transitions. [2022-07-12 08:11:32,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:11:32,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:11:32,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:11:32,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 08:11:32,751 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:11:32,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:11:32,752 INFO L85 PathProgramCache]: Analyzing trace with hash -67250297, now seen corresponding path program 1 times [2022-07-12 08:11:32,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:11:32,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371733295] [2022-07-12 08:11:32,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:11:32,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:11:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:11:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:32,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:11:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:11:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:11:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:32,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:11:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:11:32,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:11:32,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371733295] [2022-07-12 08:11:32,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371733295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:11:32,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:11:32,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:11:32,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95321062] [2022-07-12 08:11:32,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:11:32,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:11:32,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:11:32,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:11:32,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:11:32,867 INFO L87 Difference]: Start difference. First operand 51042 states and 82535 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:40,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:11:40,882 INFO L93 Difference]: Finished difference Result 117340 states and 192222 transitions. [2022-07-12 08:11:40,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 08:11:40,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:11:40,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:11:41,149 INFO L225 Difference]: With dead ends: 117340 [2022-07-12 08:11:41,149 INFO L226 Difference]: Without dead ends: 68440 [2022-07-12 08:11:41,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:11:41,266 INFO L413 NwaCegarLoop]: 4623 mSDtfsCounter, 5162 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5183 SdHoareTripleChecker+Valid, 21447 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 08:11:41,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5183 Valid, 21447 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 08:11:41,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68440 states. [2022-07-12 08:11:45,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68440 to 51042. [2022-07-12 08:11:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.5732106988053705) internal successors, (74405), 47425 states have internal predecessors, (74405), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-12 08:11:45,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82406 transitions. [2022-07-12 08:11:45,260 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82406 transitions. Word has length 189 [2022-07-12 08:11:45,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:11:45,260 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82406 transitions. [2022-07-12 08:11:45,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:11:45,261 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82406 transitions. [2022-07-12 08:11:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:11:45,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:11:45,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:11:45,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 08:11:45,284 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:11:45,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:11:45,284 INFO L85 PathProgramCache]: Analyzing trace with hash -678519355, now seen corresponding path program 1 times [2022-07-12 08:11:45,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:11:45,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992224755] [2022-07-12 08:11:45,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:11:45,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:11:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:45,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:11:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:45,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:11:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:45,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:11:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:11:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:11:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:11:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:11:45,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:11:45,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992224755] [2022-07-12 08:11:45,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992224755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:11:45,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:11:45,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:11:45,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22957586] [2022-07-12 08:11:45,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:11:45,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:11:45,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:11:45,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:11:45,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:11:45,408 INFO L87 Difference]: Start difference. First operand 51042 states and 82406 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:12:01,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:12:01,452 INFO L93 Difference]: Finished difference Result 180620 states and 293500 transitions. [2022-07-12 08:12:01,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:12:01,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-12 08:12:01,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:12:01,918 INFO L225 Difference]: With dead ends: 180620 [2022-07-12 08:12:01,918 INFO L226 Difference]: Without dead ends: 131720 [2022-07-12 08:12:02,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:12:02,073 INFO L413 NwaCegarLoop]: 4976 mSDtfsCounter, 5635 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 22805 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 08:12:02,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5655 Valid, 22805 Invalid, 3330 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 3243 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 08:12:02,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131720 states. [2022-07-12 08:12:10,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131720 to 100069. [2022-07-12 08:12:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100069 states, 92610 states have (on average 1.5657380412482453) internal successors, (145003), 92868 states have internal predecessors, (145003), 5659 states have call successors, (5659), 1542 states have call predecessors, (5659), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2022-07-12 08:12:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100069 states to 100069 states and 163138 transitions. [2022-07-12 08:12:11,161 INFO L78 Accepts]: Start accepts. Automaton has 100069 states and 163138 transitions. Word has length 189 [2022-07-12 08:12:11,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:12:11,162 INFO L495 AbstractCegarLoop]: Abstraction has 100069 states and 163138 transitions. [2022-07-12 08:12:11,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:12:11,162 INFO L276 IsEmpty]: Start isEmpty. Operand 100069 states and 163138 transitions. [2022-07-12 08:12:11,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:12:11,205 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:12:11,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:12:11,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 08:12:11,206 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:12:11,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:12:11,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2083711033, now seen corresponding path program 1 times [2022-07-12 08:12:11,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:12:11,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567815241] [2022-07-12 08:12:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:12:11,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:12:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:12:11,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:12:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:12:11,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:12:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:12:11,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:12:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:12:11,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:12:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:12:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:12:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:12:11,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:12:11,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:12:11,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567815241] [2022-07-12 08:12:11,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567815241] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:12:11,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:12:11,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:12:11,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622755261] [2022-07-12 08:12:11,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:12:11,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:12:11,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:12:11,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:12:11,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:12:11,337 INFO L87 Difference]: Start difference. First operand 100069 states and 163138 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)