./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/AllInterval-008.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/xcsp/AllInterval-008.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 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:43:48,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:43:48,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:43:48,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:43:48,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:43:48,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:43:48,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:43:48,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:43:48,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:43:48,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:43:48,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:43:48,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:43:48,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:43:48,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:43:48,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:43:48,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:43:48,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:43:48,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:43:48,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:43:48,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:43:48,561 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:43:48,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:43:48,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:43:48,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:43:48,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:43:48,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:43:48,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:43:48,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:43:48,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:43:48,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:43:48,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:43:48,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:43:48,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:43:48,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:43:48,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:43:48,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:43:48,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:43:48,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:43:48,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:43:48,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:43:48,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:43:48,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:43:48,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:43:48,609 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:43:48,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:43:48,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:43:48,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:43:48,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:43:48,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:43:48,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:43:48,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:43:48,612 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:43:48,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:43:48,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:43:48,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:43:48,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:43:48,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:43:48,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:43:48,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:43:48,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:43:48,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:43:48,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:43:48,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:43:48,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:43:48,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:43:48,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:43:48,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:43:48,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:43:48,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:43:48,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:43:48,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:43:48,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:43:48,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:43:48,617 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:43:48,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:43:48,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:43:48,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 [2022-07-12 07:43:48,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:43:48,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:43:48,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:43:48,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:43:48,863 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:43:48,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-008.c [2022-07-12 07:43:48,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732336fe0/1f91f456953b4373be6ae12d30c3d977/FLAGf1cf8bf56 [2022-07-12 07:43:49,350 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:43:49,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-008.c [2022-07-12 07:43:49,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732336fe0/1f91f456953b4373be6ae12d30c3d977/FLAGf1cf8bf56 [2022-07-12 07:43:49,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732336fe0/1f91f456953b4373be6ae12d30c3d977 [2022-07-12 07:43:49,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:43:49,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:43:49,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:43:49,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:43:49,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:43:49,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5fe390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49, skipping insertion in model container [2022-07-12 07:43:49,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:43:49,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:43:49,564 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/xcsp/AllInterval-008.c[4334,4347] [2022-07-12 07:43:49,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:43:49,589 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:43:49,616 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/xcsp/AllInterval-008.c[4334,4347] [2022-07-12 07:43:49,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:43:49,628 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:43:49,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49 WrapperNode [2022-07-12 07:43:49,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:43:49,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:43:49,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:43:49,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:43:49,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,665 INFO L137 Inliner]: procedures = 13, calls = 93, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 206 [2022-07-12 07:43:49,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:43:49,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:43:49,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:43:49,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:43:49,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:43:49,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:43:49,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:43:49,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:43:49,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (1/1) ... [2022-07-12 07:43:49,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:43:49,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:43:49,728 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 07:43:49,732 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 07:43:49,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:43:49,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:43:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:43:49,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:43:49,761 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-07-12 07:43:49,761 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-07-12 07:43:49,825 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:43:49,827 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:43:50,065 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:43:50,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:43:50,073 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:43:50,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:43:50 BoogieIcfgContainer [2022-07-12 07:43:50,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:43:50,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:43:50,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:43:50,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:43:50,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:43:49" (1/3) ... [2022-07-12 07:43:50,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e27c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:43:50, skipping insertion in model container [2022-07-12 07:43:50,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:43:49" (2/3) ... [2022-07-12 07:43:50,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e27c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:43:50, skipping insertion in model container [2022-07-12 07:43:50,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:43:50" (3/3) ... [2022-07-12 07:43:50,082 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-008.c [2022-07-12 07:43:50,094 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:43:50,094 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 07:43:50,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:43:50,147 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@667af4b6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62540368 [2022-07-12 07:43:50,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 07:43:50,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 45 states have internal predecessors, (53), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-07-12 07:43:50,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-07-12 07:43:50,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:43:50,184 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:50,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:43:50,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:43:50,188 INFO L85 PathProgramCache]: Analyzing trace with hash 266037521, now seen corresponding path program 1 times [2022-07-12 07:43:50,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:43:50,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869463795] [2022-07-12 07:43:50,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:43:50,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:43:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 07:43:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 07:43:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 07:43:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 07:43:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 07:43:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 07:43:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 07:43:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 07:43:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 07:43:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 07:43:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 07:43:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 07:43:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 07:43:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 07:43:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 07:43:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 07:43:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 07:43:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 07:43:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 07:43:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 07:43:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 07:43:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 07:43:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 07:43:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 07:43:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 07:43:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 07:43:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 07:43:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 07:43:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 07:43:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-12 07:43:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 07:43:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-12 07:43:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 07:43:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 07:43:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-12 07:43:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 07:43:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 07:43:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-12 07:43:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 07:43:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 07:43:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-12 07:43:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-12 07:43:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 07:43:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-12 07:43:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 07:43:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-12 07:43:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 07:43:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-12 07:43:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-12 07:43:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-12 07:43:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 07:43:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-12 07:43:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-12 07:43:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-12 07:43:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 07:43:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-12 07:43:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-12 07:43:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 07:43:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-12 07:43:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-12 07:43:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-12 07:43:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-07-12 07:43:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-12 07:43:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-12 07:43:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-12 07:43:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-07-12 07:43:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-12 07:43:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-12 07:43:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-12 07:43:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-12 07:43:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-12 07:43:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-12 07:43:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-12 07:43:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-12 07:43:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-12 07:43:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-07-12 07:43:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-12 07:43:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-07-12 07:43:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-07-12 07:43:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-12 07:43:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-07-12 07:43:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-07-12 07:43:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-07-12 07:43:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-07-12 07:43:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-12 07:43:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-12 07:43:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:43:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2022-07-12 07:43:50,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:43:50,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869463795] [2022-07-12 07:43:50,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869463795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:43:50,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:43:50,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 07:43:50,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404773770] [2022-07-12 07:43:50,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:43:50,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 07:43:50,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:43:50,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 07:43:50,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 07:43:50,863 INFO L87 Difference]: Start difference. First operand has 133 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 45 states have internal predecessors, (53), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) [2022-07-12 07:43:50,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:43:50,950 INFO L93 Difference]: Finished difference Result 260 states and 530 transitions. [2022-07-12 07:43:50,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 07:43:50,952 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) Word has length 469 [2022-07-12 07:43:50,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:43:50,962 INFO L225 Difference]: With dead ends: 260 [2022-07-12 07:43:50,962 INFO L226 Difference]: Without dead ends: 130 [2022-07-12 07:43:50,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 07:43:50,973 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:43:50,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:43:50,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-07-12 07:43:51,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-07-12 07:43:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-07-12 07:43:51,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 221 transitions. [2022-07-12 07:43:51,063 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 221 transitions. Word has length 469 [2022-07-12 07:43:51,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:43:51,065 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 221 transitions. [2022-07-12 07:43:51,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) [2022-07-12 07:43:51,066 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 221 transitions. [2022-07-12 07:43:51,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-07-12 07:43:51,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:43:51,085 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:51,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:43:51,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 07:43:51,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:43:51,087 INFO L85 PathProgramCache]: Analyzing trace with hash -827472959, now seen corresponding path program 1 times [2022-07-12 07:43:51,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:43:51,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349426504] [2022-07-12 07:43:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:43:51,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:43:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat