./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 eb692b52 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-?-eb692b5 [2022-07-19 18:47:45,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 18:47:45,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 18:47:45,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 18:47:45,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 18:47:45,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 18:47:45,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 18:47:45,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 18:47:45,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 18:47:45,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 18:47:45,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 18:47:45,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 18:47:45,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 18:47:45,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 18:47:45,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 18:47:45,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 18:47:45,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 18:47:45,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 18:47:45,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 18:47:45,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 18:47:45,584 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 18:47:45,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 18:47:45,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 18:47:45,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 18:47:45,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 18:47:45,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 18:47:45,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 18:47:45,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 18:47:45,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 18:47:45,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 18:47:45,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 18:47:45,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 18:47:45,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 18:47:45,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 18:47:45,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 18:47:45,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 18:47:45,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 18:47:45,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 18:47:45,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 18:47:45,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 18:47:45,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 18:47:45,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 18:47:45,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 18:47:45,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 18:47:45,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 18:47:45,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 18:47:45,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 18:47:45,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 18:47:45,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 18:47:45,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 18:47:45,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 18:47:45,620 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 18:47:45,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 18:47:45,621 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 18:47:45,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 18:47:45,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 18:47:45,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 18:47:45,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 18:47:45,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 18:47:45,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 18:47:45,622 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 18:47:45,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 18:47:45,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 18:47:45,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 18:47:45,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 18:47:45,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 18:47:45,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 18:47:45,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:47:45,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 18:47:45,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 18:47:45,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 18:47:45,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 18:47:45,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 18:47:45,625 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 18:47:45,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 18:47:45,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 18:47:45,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 [2022-07-19 18:47:45,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 18:47:45,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 18:47:45,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 18:47:45,849 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 18:47:45,850 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 18:47:45,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-008.c [2022-07-19 18:47:45,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3146ade13/f1550e866c7444efa0f9faeef07078a0/FLAG670f18cf2 [2022-07-19 18:47:46,255 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 18:47:46,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-008.c [2022-07-19 18:47:46,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3146ade13/f1550e866c7444efa0f9faeef07078a0/FLAG670f18cf2 [2022-07-19 18:47:46,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3146ade13/f1550e866c7444efa0f9faeef07078a0 [2022-07-19 18:47:46,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 18:47:46,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 18:47:46,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 18:47:46,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 18:47:46,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 18:47:46,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e45bf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46, skipping insertion in model container [2022-07-19 18:47:46,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 18:47:46,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 18:47:46,484 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] [2022-07-19 18:47:46,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:47:46,499 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 18:47:46,532 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] [2022-07-19 18:47:46,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:47:46,548 INFO L208 MainTranslator]: Completed translation [2022-07-19 18:47:46,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46 WrapperNode [2022-07-19 18:47:46,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 18:47:46,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 18:47:46,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 18:47:46,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 18:47:46,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,597 INFO L137 Inliner]: procedures = 13, calls = 93, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 206 [2022-07-19 18:47:46,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 18:47:46,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 18:47:46,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 18:47:46,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 18:47:46,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 18:47:46,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 18:47:46,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 18:47:46,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 18:47:46,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (1/1) ... [2022-07-19 18:47:46,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:47:46,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:47:46,665 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) [2022-07-19 18:47:46,667 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 [2022-07-19 18:47:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 18:47:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 18:47:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 18:47:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 18:47:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-07-19 18:47:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-07-19 18:47:46,756 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 18:47:46,767 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 18:47:47,025 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 18:47:47,031 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 18:47:47,032 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 18:47:47,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:47:47 BoogieIcfgContainer [2022-07-19 18:47:47,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 18:47:47,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 18:47:47,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 18:47:47,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 18:47:47,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 06:47:46" (1/3) ... [2022-07-19 18:47:47,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41297d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:47:47, skipping insertion in model container [2022-07-19 18:47:47,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:47:46" (2/3) ... [2022-07-19 18:47:47,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41297d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:47:47, skipping insertion in model container [2022-07-19 18:47:47,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:47:47" (3/3) ... [2022-07-19 18:47:47,051 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-008.c [2022-07-19 18:47:47,062 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 18:47:47,062 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 18:47:47,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 18:47:47,142 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@dbbd13f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@157cfb42 [2022-07-19 18:47:47,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 18:47:47,146 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) [2022-07-19 18:47:47,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-07-19 18:47:47,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:47:47,183 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] [2022-07-19 18:47:47,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 18:47:47,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:47:47,190 INFO L85 PathProgramCache]: Analyzing trace with hash 266037521, now seen corresponding path program 1 times [2022-07-19 18:47:47,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:47:47,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322800300] [2022-07-19 18:47:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:47:47,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:47:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 18:47:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 18:47:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 18:47:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 18:47:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 18:47:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 18:47:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 18:47:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 18:47:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 18:47:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 18:47:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 18:47:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 18:47:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 18:47:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 18:47:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-19 18:47:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 18:47:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 18:47:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 18:47:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 18:47:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 18:47:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 18:47:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-19 18:47:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-19 18:47:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 18:47:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-19 18:47:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 18:47:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-19 18:47:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-19 18:47:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-19 18:47:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-19 18:47:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-19 18:47:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 18:47:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-19 18:47:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-19 18:47:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-19 18:47:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-19 18:47:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 18:47:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-19 18:47:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-19 18:47:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-19 18:47:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-19 18:47:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-19 18:47:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-19 18:47:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-19 18:47:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-19 18:47:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-19 18:47:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-19 18:47:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-19 18:47:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-19 18:47:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-19 18:47:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-19 18:47:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-19 18:47:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-19 18:47:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-19 18:47:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-19 18:47:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-19 18:47:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-19 18:47:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-19 18:47:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-19 18:47:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-19 18:47:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-19 18:47:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-07-19 18:47:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-19 18:47:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-19 18:47:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-19 18:47:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-07-19 18:47:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-19 18:47:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-19 18:47:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-19 18:47:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-19 18:47:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-19 18:47:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-19 18:47:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-19 18:47:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-19 18:47:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-19 18:47:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-07-19 18:47:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-19 18:47:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-07-19 18:47:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-07-19 18:47:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-19 18:47:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-07-19 18:47:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-07-19 18:47:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-07-19 18:47:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-07-19 18:47:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-19 18:47:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-19 18:47:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:47:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2022-07-19 18:47:47,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:47:47,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322800300] [2022-07-19 18:47:47,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322800300] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:47:47,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:47:47,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 18:47:47,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755525111] [2022-07-19 18:47:47,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:47:47,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 18:47:47,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:47:47,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 18:47:47,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 18:47:47,744 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) [2022-07-19 18:47:47,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:47:47,841 INFO L93 Difference]: Finished difference Result 260 states and 530 transitions. [2022-07-19 18:47:47,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 18:47:47,843 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 [2022-07-19 18:47:47,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:47:47,852 INFO L225 Difference]: With dead ends: 260 [2022-07-19 18:47:47,852 INFO L226 Difference]: Without dead ends: 130 [2022-07-19 18:47:47,859 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 [2022-07-19 18:47:47,862 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 [2022-07-19 18:47:47,863 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] [2022-07-19 18:47:47,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-07-19 18:47:47,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-07-19 18:47:47,923 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) [2022-07-19 18:47:47,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 221 transitions. [2022-07-19 18:47:47,928 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 221 transitions. Word has length 469 [2022-07-19 18:47:47,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:47:47,930 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 221 transitions. [2022-07-19 18:47:47,931 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) [2022-07-19 18:47:47,931 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 221 transitions. [2022-07-19 18:47:47,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-07-19 18:47:47,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:47:47,941 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] [2022-07-19 18:47:47,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 18:47:47,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 18:47:47,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:47:47,942 INFO L85 PathProgramCache]: Analyzing trace with hash -827472959, now seen corresponding path program 1 times [2022-07-19 18:47:47,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:47:47,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22695310] [2022-07-19 18:47:47,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:47:47,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:47:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat