./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label02.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 2b308c455528b2e71d5627736f6a80518f3df47ae90c8068dc42fa4e4d0ec7b4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 07:54:45,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 07:54:45,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 07:54:45,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 07:54:45,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 07:54:45,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 07:54:45,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 07:54:45,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 07:54:45,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 07:54:45,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 07:54:45,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 07:54:45,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 07:54:45,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 07:54:45,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 07:54:45,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 07:54:45,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 07:54:45,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 07:54:45,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 07:54:45,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 07:54:45,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 07:54:45,401 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 07:54:45,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 07:54:45,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 07:54:45,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 07:54:45,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 07:54:45,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 07:54:45,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 07:54:45,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 07:54:45,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 07:54:45,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 07:54:45,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 07:54:45,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 07:54:45,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 07:54:45,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 07:54:45,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 07:54:45,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 07:54:45,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 07:54:45,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 07:54:45,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 07:54:45,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 07:54:45,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 07:54:45,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 07:54:45,427 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 07:54:45,453 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 07:54:45,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 07:54:45,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 07:54:45,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 07:54:45,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 07:54:45,455 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 07:54:45,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 07:54:45,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 07:54:45,456 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 07:54:45,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 07:54:45,457 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 07:54:45,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 07:54:45,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 07:54:45,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 07:54:45,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 07:54:45,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 07:54:45,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 07:54:45,459 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 07:54:45,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 07:54:45,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 07:54:45,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 07:54:45,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 07:54:45,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 07:54:45,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 07:54:45,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 07:54:45,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 07:54:45,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 07:54:45,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 07:54:45,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 07:54:45,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 07:54:45,461 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 07:54:45,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 07:54:45,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 07:54:45,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b308c455528b2e71d5627736f6a80518f3df47ae90c8068dc42fa4e4d0ec7b4 [2022-07-21 07:54:45,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 07:54:45,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 07:54:45,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 07:54:45,847 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 07:54:45,848 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 07:54:45,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2022-07-21 07:54:45,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f2201e0/e256aa015c3144a69486849b1739d508/FLAG8a1b2c22e [2022-07-21 07:54:46,653 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 07:54:46,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2022-07-21 07:54:46,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f2201e0/e256aa015c3144a69486849b1739d508/FLAG8a1b2c22e [2022-07-21 07:54:46,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f2201e0/e256aa015c3144a69486849b1739d508 [2022-07-21 07:54:46,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 07:54:46,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 07:54:46,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 07:54:46,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 07:54:46,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 07:54:46,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:54:46" (1/1) ... [2022-07-21 07:54:46,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29619d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:46, skipping insertion in model container [2022-07-21 07:54:46,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:54:46" (1/1) ... [2022-07-21 07:54:46,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 07:54:46,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 07:54:47,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[15584,15597] [2022-07-21 07:54:47,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[22874,22887] [2022-07-21 07:54:47,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 07:54:48,015 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 07:54:48,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[15584,15597] [2022-07-21 07:54:48,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[22874,22887] [2022-07-21 07:54:48,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 07:54:48,531 INFO L208 MainTranslator]: Completed translation [2022-07-21 07:54:48,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48 WrapperNode [2022-07-21 07:54:48,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 07:54:48,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 07:54:48,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 07:54:48,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 07:54:48,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:48,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:49,078 INFO L137 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5145 [2022-07-21 07:54:49,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 07:54:49,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 07:54:49,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 07:54:49,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 07:54:49,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:49,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:49,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:49,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:49,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:49,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:49,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:49,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 07:54:49,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 07:54:49,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 07:54:49,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 07:54:49,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (1/1) ... [2022-07-21 07:54:49,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 07:54:49,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 07:54:49,633 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) [2022-07-21 07:54:49,659 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 [2022-07-21 07:54:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 07:54:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 07:54:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 07:54:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 07:54:49,838 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 07:54:49,840 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 07:54:53,529 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 07:54:53,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 07:54:53,545 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 07:54:53,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:54:53 BoogieIcfgContainer [2022-07-21 07:54:53,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 07:54:53,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 07:54:53,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 07:54:53,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 07:54:53,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 07:54:46" (1/3) ... [2022-07-21 07:54:53,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1531f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:54:53, skipping insertion in model container [2022-07-21 07:54:53,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:54:48" (2/3) ... [2022-07-21 07:54:53,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1531f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:54:53, skipping insertion in model container [2022-07-21 07:54:53,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:54:53" (3/3) ... [2022-07-21 07:54:53,556 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2022-07-21 07:54:53,569 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 07:54:53,570 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 07:54:53,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 07:54:53,635 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@381eb978, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@349dcf75 [2022-07-21 07:54:53,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 07:54:53,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 926 states, 923 states have (on average 1.8992416034669555) internal successors, (1753), 925 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:54:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 07:54:53,662 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:54:53,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:54:53,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:54:53,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:54:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash 340623278, now seen corresponding path program 1 times [2022-07-21 07:54:53,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:54:53,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177654214] [2022-07-21 07:54:53,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:54:53,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:54:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:54:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:54:53,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:54:53,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177654214] [2022-07-21 07:54:53,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177654214] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:54:53,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:54:53,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 07:54:53,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934420949] [2022-07-21 07:54:53,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:54:53,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 07:54:53,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:54:53,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 07:54:53,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 07:54:53,882 INFO L87 Difference]: Start difference. First operand has 926 states, 923 states have (on average 1.8992416034669555) internal successors, (1753), 925 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:54:53,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:54:53,966 INFO L93 Difference]: Finished difference Result 1804 states and 3416 transitions. [2022-07-21 07:54:53,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 07:54:53,969 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-07-21 07:54:53,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:54:53,992 INFO L225 Difference]: With dead ends: 1804 [2022-07-21 07:54:53,992 INFO L226 Difference]: Without dead ends: 860 [2022-07-21 07:54:54,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 07:54:54,005 INFO L413 NwaCegarLoop]: 1684 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, 1684 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 [2022-07-21 07:54:54,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 07:54:54,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-07-21 07:54:54,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 860. [2022-07-21 07:54:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 858 states have (on average 1.8881118881118881) internal successors, (1620), 859 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:54:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1620 transitions. [2022-07-21 07:54:54,100 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1620 transitions. Word has length 38 [2022-07-21 07:54:54,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:54:54,101 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 1620 transitions. [2022-07-21 07:54:54,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:54:54,102 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1620 transitions. [2022-07-21 07:54:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 07:54:54,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:54:54,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:54:54,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 07:54:54,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:54:54,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:54:54,109 INFO L85 PathProgramCache]: Analyzing trace with hash 615382892, now seen corresponding path program 1 times [2022-07-21 07:54:54,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:54:54,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252882656] [2022-07-21 07:54:54,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:54:54,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:54:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:54:54,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:54:54,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:54:54,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252882656] [2022-07-21 07:54:54,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252882656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:54:54,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:54:54,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 07:54:54,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376417813] [2022-07-21 07:54:54,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:54:54,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 07:54:54,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:54:54,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 07:54:54,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 07:54:54,232 INFO L87 Difference]: Start difference. First operand 860 states and 1620 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:54:54,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:54:54,352 INFO L93 Difference]: Finished difference Result 924 states and 1719 transitions. [2022-07-21 07:54:54,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 07:54:54,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-07-21 07:54:54,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:54:54,356 INFO L225 Difference]: With dead ends: 924 [2022-07-21 07:54:54,357 INFO L226 Difference]: Without dead ends: 860 [2022-07-21 07:54:54,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:54:54,359 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 3 mSDsluCounter, 4811 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6429 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:54:54,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6429 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 07:54:54,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-07-21 07:54:54,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 860. [2022-07-21 07:54:54,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 858 states have (on average 1.8414918414918415) internal successors, (1580), 859 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:54:54,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1580 transitions. [2022-07-21 07:54:54,378 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1580 transitions. Word has length 38 [2022-07-21 07:54:54,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:54:54,378 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 1580 transitions. [2022-07-21 07:54:54,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:54:54,379 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1580 transitions. [2022-07-21 07:54:54,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 07:54:54,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:54:54,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:54:54,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 07:54:54,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:54:54,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:54:54,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1423615356, now seen corresponding path program 1 times [2022-07-21 07:54:54,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:54:54,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239876942] [2022-07-21 07:54:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:54:54,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:54:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:54:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:54:54,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:54:54,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239876942] [2022-07-21 07:54:54,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239876942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:54:54,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:54:54,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 07:54:54,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055666430] [2022-07-21 07:54:54,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:54:54,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 07:54:54,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:54:54,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 07:54:54,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 07:54:54,600 INFO L87 Difference]: Start difference. First operand 860 states and 1580 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:00,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:00,304 INFO L93 Difference]: Finished difference Result 3115 states and 5889 transitions. [2022-07-21 07:55:00,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 07:55:00,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-07-21 07:55:00,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:00,326 INFO L225 Difference]: With dead ends: 3115 [2022-07-21 07:55:00,326 INFO L226 Difference]: Without dead ends: 2362 [2022-07-21 07:55:00,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 07:55:00,333 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 2461 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 6515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1161 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:00,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 834 Invalid, 6515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1161 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-07-21 07:55:00,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-07-21 07:55:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2022-07-21 07:55:00,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2360 states have (on average 1.5652542372881355) internal successors, (3694), 2361 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 3694 transitions. [2022-07-21 07:55:00,404 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 3694 transitions. Word has length 63 [2022-07-21 07:55:00,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:00,405 INFO L495 AbstractCegarLoop]: Abstraction has 2362 states and 3694 transitions. [2022-07-21 07:55:00,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:00,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 3694 transitions. [2022-07-21 07:55:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 07:55:00,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:00,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:00,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 07:55:00,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:00,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2101054792, now seen corresponding path program 1 times [2022-07-21 07:55:00,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:00,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574626152] [2022-07-21 07:55:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:00,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:00,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:00,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:00,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574626152] [2022-07-21 07:55:00,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574626152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:00,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:00,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 07:55:00,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408583963] [2022-07-21 07:55:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:00,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 07:55:00,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:00,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 07:55:00,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:00,515 INFO L87 Difference]: Start difference. First operand 2362 states and 3694 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:00,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:00,554 INFO L93 Difference]: Finished difference Result 2476 states and 3874 transitions. [2022-07-21 07:55:00,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 07:55:00,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 07:55:00,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:00,565 INFO L225 Difference]: With dead ends: 2476 [2022-07-21 07:55:00,566 INFO L226 Difference]: Without dead ends: 2416 [2022-07-21 07:55:00,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:00,568 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1524 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:00,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1754 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 07:55:00,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-07-21 07:55:00,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2414. [2022-07-21 07:55:00,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2412 states have (on average 1.5659203980099503) internal successors, (3777), 2413 states have internal predecessors, (3777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:00,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3777 transitions. [2022-07-21 07:55:00,658 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3777 transitions. Word has length 77 [2022-07-21 07:55:00,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:00,659 INFO L495 AbstractCegarLoop]: Abstraction has 2414 states and 3777 transitions. [2022-07-21 07:55:00,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:00,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3777 transitions. [2022-07-21 07:55:00,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 07:55:00,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:00,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:00,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 07:55:00,661 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:00,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:00,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1452480302, now seen corresponding path program 1 times [2022-07-21 07:55:00,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:00,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607106497] [2022-07-21 07:55:00,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:00,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:00,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:00,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607106497] [2022-07-21 07:55:00,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607106497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:00,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:00,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 07:55:00,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227283809] [2022-07-21 07:55:00,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:00,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 07:55:00,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:00,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 07:55:00,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:00,725 INFO L87 Difference]: Start difference. First operand 2414 states and 3777 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:00,772 INFO L93 Difference]: Finished difference Result 2626 states and 4113 transitions. [2022-07-21 07:55:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 07:55:00,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 07:55:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:00,783 INFO L225 Difference]: With dead ends: 2626 [2022-07-21 07:55:00,784 INFO L226 Difference]: Without dead ends: 2514 [2022-07-21 07:55:00,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:00,786 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1504 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:00,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1717 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 07:55:00,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2514 states. [2022-07-21 07:55:00,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2514 to 2512. [2022-07-21 07:55:00,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2512 states, 2510 states have (on average 1.5665338645418327) internal successors, (3932), 2511 states have internal predecessors, (3932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:00,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2512 states to 2512 states and 3932 transitions. [2022-07-21 07:55:00,856 INFO L78 Accepts]: Start accepts. Automaton has 2512 states and 3932 transitions. Word has length 77 [2022-07-21 07:55:00,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:00,856 INFO L495 AbstractCegarLoop]: Abstraction has 2512 states and 3932 transitions. [2022-07-21 07:55:00,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:00,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2512 states and 3932 transitions. [2022-07-21 07:55:00,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 07:55:00,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:00,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:00,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 07:55:00,859 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:00,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:00,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1624501596, now seen corresponding path program 1 times [2022-07-21 07:55:00,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:00,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226734164] [2022-07-21 07:55:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:00,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:00,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:00,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226734164] [2022-07-21 07:55:00,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226734164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:00,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:00,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 07:55:00,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149911907] [2022-07-21 07:55:00,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:00,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 07:55:00,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:00,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 07:55:00,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:55:00,951 INFO L87 Difference]: Start difference. First operand 2512 states and 3932 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:01,354 INFO L93 Difference]: Finished difference Result 5032 states and 7928 transitions. [2022-07-21 07:55:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 07:55:01,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 07:55:01,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:01,377 INFO L225 Difference]: With dead ends: 5032 [2022-07-21 07:55:01,377 INFO L226 Difference]: Without dead ends: 4822 [2022-07-21 07:55:01,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-07-21 07:55:01,387 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 10491 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10491 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:01,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10491 Valid, 2765 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 07:55:01,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4822 states. [2022-07-21 07:55:01,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4822 to 2720. [2022-07-21 07:55:01,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2718 states have (on average 1.5658572479764532) internal successors, (4256), 2719 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:01,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 4256 transitions. [2022-07-21 07:55:01,505 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 4256 transitions. Word has length 77 [2022-07-21 07:55:01,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:01,506 INFO L495 AbstractCegarLoop]: Abstraction has 2720 states and 4256 transitions. [2022-07-21 07:55:01,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 4256 transitions. [2022-07-21 07:55:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 07:55:01,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:01,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:01,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 07:55:01,509 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:01,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:01,510 INFO L85 PathProgramCache]: Analyzing trace with hash 806369108, now seen corresponding path program 1 times [2022-07-21 07:55:01,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:01,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200591727] [2022-07-21 07:55:01,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:01,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:01,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:01,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:01,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200591727] [2022-07-21 07:55:01,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200591727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:01,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:01,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 07:55:01,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185772375] [2022-07-21 07:55:01,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:01,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 07:55:01,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:01,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 07:55:01,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:01,609 INFO L87 Difference]: Start difference. First operand 2720 states and 4256 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:01,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:01,701 INFO L93 Difference]: Finished difference Result 3340 states and 5228 transitions. [2022-07-21 07:55:01,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 07:55:01,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 07:55:01,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:01,713 INFO L225 Difference]: With dead ends: 3340 [2022-07-21 07:55:01,713 INFO L226 Difference]: Without dead ends: 2922 [2022-07-21 07:55:01,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:01,720 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 1496 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:01,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1675 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 07:55:01,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-07-21 07:55:01,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2920. [2022-07-21 07:55:01,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2918 states have (on average 1.5640849897189857) internal successors, (4564), 2919 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 4564 transitions. [2022-07-21 07:55:01,838 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 4564 transitions. Word has length 79 [2022-07-21 07:55:01,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:01,839 INFO L495 AbstractCegarLoop]: Abstraction has 2920 states and 4564 transitions. [2022-07-21 07:55:01,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:01,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 4564 transitions. [2022-07-21 07:55:01,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 07:55:01,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:01,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:01,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 07:55:01,841 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:01,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:01,841 INFO L85 PathProgramCache]: Analyzing trace with hash 872862620, now seen corresponding path program 1 times [2022-07-21 07:55:01,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:01,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582500583] [2022-07-21 07:55:01,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:01,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:02,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:02,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582500583] [2022-07-21 07:55:02,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582500583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:02,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:02,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 07:55:02,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398774120] [2022-07-21 07:55:02,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:02,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 07:55:02,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:02,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 07:55:02,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:55:02,054 INFO L87 Difference]: Start difference. First operand 2920 states and 4564 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:02,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:02,346 INFO L93 Difference]: Finished difference Result 3538 states and 5528 transitions. [2022-07-21 07:55:02,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 07:55:02,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 07:55:02,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:02,358 INFO L225 Difference]: With dead ends: 3538 [2022-07-21 07:55:02,358 INFO L226 Difference]: Without dead ends: 2922 [2022-07-21 07:55:02,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-07-21 07:55:02,362 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 9273 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9273 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:02,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9273 Valid, 2055 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 07:55:02,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-07-21 07:55:02,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2920. [2022-07-21 07:55:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2918 states have (on average 1.5620287868403016) internal successors, (4558), 2919 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 4558 transitions. [2022-07-21 07:55:02,465 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 4558 transitions. Word has length 79 [2022-07-21 07:55:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:02,465 INFO L495 AbstractCegarLoop]: Abstraction has 2920 states and 4558 transitions. [2022-07-21 07:55:02,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:02,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 4558 transitions. [2022-07-21 07:55:02,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 07:55:02,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:02,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:02,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 07:55:02,470 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:02,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash -385682984, now seen corresponding path program 1 times [2022-07-21 07:55:02,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:02,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859135865] [2022-07-21 07:55:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:02,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:02,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:02,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859135865] [2022-07-21 07:55:02,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859135865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:02,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:02,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 07:55:02,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575003844] [2022-07-21 07:55:02,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:02,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 07:55:02,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:02,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 07:55:02,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:02,526 INFO L87 Difference]: Start difference. First operand 2920 states and 4558 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:02,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:02,684 INFO L93 Difference]: Finished difference Result 4080 states and 6352 transitions. [2022-07-21 07:55:02,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 07:55:02,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 07:55:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:02,706 INFO L225 Difference]: With dead ends: 4080 [2022-07-21 07:55:02,707 INFO L226 Difference]: Without dead ends: 3464 [2022-07-21 07:55:02,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:02,711 INFO L413 NwaCegarLoop]: 1617 mSDtfsCounter, 1508 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:02,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1726 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 07:55:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2022-07-21 07:55:02,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 3462. [2022-07-21 07:55:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3460 states have (on average 1.5554913294797688) internal successors, (5382), 3461 states have internal predecessors, (5382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 5382 transitions. [2022-07-21 07:55:02,864 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 5382 transitions. Word has length 79 [2022-07-21 07:55:02,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:02,864 INFO L495 AbstractCegarLoop]: Abstraction has 3462 states and 5382 transitions. [2022-07-21 07:55:02,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 5382 transitions. [2022-07-21 07:55:02,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 07:55:02,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:02,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:02,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 07:55:02,866 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:02,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:02,867 INFO L85 PathProgramCache]: Analyzing trace with hash -111995272, now seen corresponding path program 1 times [2022-07-21 07:55:02,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:02,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13011748] [2022-07-21 07:55:02,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:02,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:02,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:02,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13011748] [2022-07-21 07:55:02,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13011748] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:02,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:02,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 07:55:02,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099633011] [2022-07-21 07:55:02,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:02,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 07:55:02,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:02,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 07:55:02,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:02,921 INFO L87 Difference]: Start difference. First operand 3462 states and 5382 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:03,109 INFO L93 Difference]: Finished difference Result 5634 states and 8704 transitions. [2022-07-21 07:55:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 07:55:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 07:55:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:03,128 INFO L225 Difference]: With dead ends: 5634 [2022-07-21 07:55:03,128 INFO L226 Difference]: Without dead ends: 4476 [2022-07-21 07:55:03,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:03,133 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 1512 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:03,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1735 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 07:55:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4476 states. [2022-07-21 07:55:03,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4476 to 4474. [2022-07-21 07:55:03,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4474 states, 4472 states have (on average 1.5424865831842576) internal successors, (6898), 4473 states have internal predecessors, (6898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:03,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4474 states to 4474 states and 6898 transitions. [2022-07-21 07:55:03,384 INFO L78 Accepts]: Start accepts. Automaton has 4474 states and 6898 transitions. Word has length 79 [2022-07-21 07:55:03,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:03,384 INFO L495 AbstractCegarLoop]: Abstraction has 4474 states and 6898 transitions. [2022-07-21 07:55:03,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:03,385 INFO L276 IsEmpty]: Start isEmpty. Operand 4474 states and 6898 transitions. [2022-07-21 07:55:03,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 07:55:03,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:03,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:03,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 07:55:03,387 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:03,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:03,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1707076376, now seen corresponding path program 1 times [2022-07-21 07:55:03,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:03,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100971754] [2022-07-21 07:55:03,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:03,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:03,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:03,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100971754] [2022-07-21 07:55:03,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100971754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:03,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:03,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 07:55:03,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619502364] [2022-07-21 07:55:03,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:03,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 07:55:03,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:03,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 07:55:03,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:03,425 INFO L87 Difference]: Start difference. First operand 4474 states and 6898 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:03,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:03,836 INFO L93 Difference]: Finished difference Result 8526 states and 13012 transitions. [2022-07-21 07:55:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 07:55:03,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 07:55:03,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:03,852 INFO L225 Difference]: With dead ends: 8526 [2022-07-21 07:55:03,852 INFO L226 Difference]: Without dead ends: 6356 [2022-07-21 07:55:03,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:03,860 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 1516 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:03,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1744 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 07:55:03,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2022-07-21 07:55:04,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 6354. [2022-07-21 07:55:04,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6354 states, 6352 states have (on average 1.5217254408060454) internal successors, (9666), 6353 states have internal predecessors, (9666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6354 states to 6354 states and 9666 transitions. [2022-07-21 07:55:04,275 INFO L78 Accepts]: Start accepts. Automaton has 6354 states and 9666 transitions. Word has length 79 [2022-07-21 07:55:04,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:04,276 INFO L495 AbstractCegarLoop]: Abstraction has 6354 states and 9666 transitions. [2022-07-21 07:55:04,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:04,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6354 states and 9666 transitions. [2022-07-21 07:55:04,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 07:55:04,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:04,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:04,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 07:55:04,278 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:04,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:04,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1886482360, now seen corresponding path program 1 times [2022-07-21 07:55:04,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:04,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044491625] [2022-07-21 07:55:04,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:04,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:04,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:04,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:04,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044491625] [2022-07-21 07:55:04,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044491625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:04,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:04,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 07:55:04,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922769491] [2022-07-21 07:55:04,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:04,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 07:55:04,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:04,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 07:55:04,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:04,314 INFO L87 Difference]: Start difference. First operand 6354 states and 9666 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:05,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:05,024 INFO L93 Difference]: Finished difference Result 13878 states and 20836 transitions. [2022-07-21 07:55:05,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 07:55:05,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 07:55:05,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:05,048 INFO L225 Difference]: With dead ends: 13878 [2022-07-21 07:55:05,048 INFO L226 Difference]: Without dead ends: 9828 [2022-07-21 07:55:05,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 07:55:05,060 INFO L413 NwaCegarLoop]: 1656 mSDtfsCounter, 1520 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:05,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1753 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 07:55:05,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9828 states. [2022-07-21 07:55:05,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9828 to 9826. [2022-07-21 07:55:05,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9826 states, 9824 states have (on average 1.4936889250814331) internal successors, (14674), 9825 states have internal predecessors, (14674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9826 states to 9826 states and 14674 transitions. [2022-07-21 07:55:05,989 INFO L78 Accepts]: Start accepts. Automaton has 9826 states and 14674 transitions. Word has length 79 [2022-07-21 07:55:05,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:05,989 INFO L495 AbstractCegarLoop]: Abstraction has 9826 states and 14674 transitions. [2022-07-21 07:55:05,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:05,990 INFO L276 IsEmpty]: Start isEmpty. Operand 9826 states and 14674 transitions. [2022-07-21 07:55:05,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 07:55:05,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:05,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:05,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 07:55:05,991 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:05,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:05,992 INFO L85 PathProgramCache]: Analyzing trace with hash 874214487, now seen corresponding path program 1 times [2022-07-21 07:55:05,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:05,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246612491] [2022-07-21 07:55:05,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:05,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:06,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:55:06,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:06,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246612491] [2022-07-21 07:55:06,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246612491] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:06,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:06,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 07:55:06,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574724653] [2022-07-21 07:55:06,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:06,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 07:55:06,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:06,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 07:55:06,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:55:06,098 INFO L87 Difference]: Start difference. First operand 9826 states and 14674 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:07,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:07,455 INFO L93 Difference]: Finished difference Result 16289 states and 23945 transitions. [2022-07-21 07:55:07,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 07:55:07,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-21 07:55:07,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:07,494 INFO L225 Difference]: With dead ends: 16289 [2022-07-21 07:55:07,495 INFO L226 Difference]: Without dead ends: 16287 [2022-07-21 07:55:07,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-21 07:55:07,505 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 730 mSDsluCounter, 9164 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 10773 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:07,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 10773 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 07:55:07,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16287 states. [2022-07-21 07:55:08,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16287 to 10210. [2022-07-21 07:55:08,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10210 states, 10208 states have (on average 1.4719827586206897) internal successors, (15026), 10209 states have internal predecessors, (15026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:08,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10210 states to 10210 states and 15026 transitions. [2022-07-21 07:55:08,527 INFO L78 Accepts]: Start accepts. Automaton has 10210 states and 15026 transitions. Word has length 80 [2022-07-21 07:55:08,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:08,528 INFO L495 AbstractCegarLoop]: Abstraction has 10210 states and 15026 transitions. [2022-07-21 07:55:08,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:08,528 INFO L276 IsEmpty]: Start isEmpty. Operand 10210 states and 15026 transitions. [2022-07-21 07:55:08,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 07:55:08,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:08,534 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:08,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 07:55:08,535 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:08,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:08,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1411161737, now seen corresponding path program 1 times [2022-07-21 07:55:08,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:08,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527353955] [2022-07-21 07:55:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:08,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:08,624 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-21 07:55:08,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:08,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527353955] [2022-07-21 07:55:08,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527353955] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:08,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:08,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 07:55:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444370062] [2022-07-21 07:55:08,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:08,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 07:55:08,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 07:55:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:55:08,627 INFO L87 Difference]: Start difference. First operand 10210 states and 15026 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:12,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:12,270 INFO L93 Difference]: Finished difference Result 59216 states and 85737 transitions. [2022-07-21 07:55:12,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 07:55:12,271 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-21 07:55:12,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:12,409 INFO L225 Difference]: With dead ends: 59216 [2022-07-21 07:55:12,410 INFO L226 Difference]: Without dead ends: 51310 [2022-07-21 07:55:12,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-21 07:55:12,444 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 8617 mSDsluCounter, 2136 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8617 SdHoareTripleChecker+Valid, 3801 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:12,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8617 Valid, 3801 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 07:55:12,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51310 states. [2022-07-21 07:55:14,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51310 to 18114. [2022-07-21 07:55:14,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18114 states, 18112 states have (on average 1.4550574204946995) internal successors, (26354), 18113 states have internal predecessors, (26354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18114 states to 18114 states and 26354 transitions. [2022-07-21 07:55:14,283 INFO L78 Accepts]: Start accepts. Automaton has 18114 states and 26354 transitions. Word has length 112 [2022-07-21 07:55:14,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:14,283 INFO L495 AbstractCegarLoop]: Abstraction has 18114 states and 26354 transitions. [2022-07-21 07:55:14,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 18114 states and 26354 transitions. [2022-07-21 07:55:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 07:55:14,290 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:14,291 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:14,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 07:55:14,291 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:14,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:14,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1381639519, now seen corresponding path program 1 times [2022-07-21 07:55:14,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:14,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592105888] [2022-07-21 07:55:14,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:14,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-21 07:55:14,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:14,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592105888] [2022-07-21 07:55:14,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592105888] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:14,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:14,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 07:55:14,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552261261] [2022-07-21 07:55:14,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:14,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 07:55:14,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:14,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 07:55:14,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:55:14,377 INFO L87 Difference]: Start difference. First operand 18114 states and 26354 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:18,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:18,508 INFO L93 Difference]: Finished difference Result 67120 states and 97065 transitions. [2022-07-21 07:55:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 07:55:18,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-21 07:55:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:18,639 INFO L225 Difference]: With dead ends: 67120 [2022-07-21 07:55:18,640 INFO L226 Difference]: Without dead ends: 59214 [2022-07-21 07:55:18,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-21 07:55:18,678 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 8442 mSDsluCounter, 2197 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8442 SdHoareTripleChecker+Valid, 3862 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:18,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8442 Valid, 3862 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 07:55:18,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59214 states. [2022-07-21 07:55:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59214 to 29986. [2022-07-21 07:55:21,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29986 states, 29984 states have (on average 1.442969583778015) internal successors, (43266), 29985 states have internal predecessors, (43266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29986 states to 29986 states and 43266 transitions. [2022-07-21 07:55:21,153 INFO L78 Accepts]: Start accepts. Automaton has 29986 states and 43266 transitions. Word has length 112 [2022-07-21 07:55:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:21,154 INFO L495 AbstractCegarLoop]: Abstraction has 29986 states and 43266 transitions. [2022-07-21 07:55:21,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand 29986 states and 43266 transitions. [2022-07-21 07:55:21,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 07:55:21,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:21,165 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:21,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 07:55:21,166 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:21,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1107951807, now seen corresponding path program 1 times [2022-07-21 07:55:21,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:21,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481013979] [2022-07-21 07:55:21,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:21,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 07:55:21,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:21,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481013979] [2022-07-21 07:55:21,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481013979] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:21,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:21,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 07:55:21,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961176971] [2022-07-21 07:55:21,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:21,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 07:55:21,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:21,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 07:55:21,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:55:21,258 INFO L87 Difference]: Start difference. First operand 29986 states and 43266 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:26,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:26,512 INFO L93 Difference]: Finished difference Result 75024 states and 108393 transitions. [2022-07-21 07:55:26,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 07:55:26,513 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-21 07:55:26,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:26,612 INFO L225 Difference]: With dead ends: 75024 [2022-07-21 07:55:26,612 INFO L226 Difference]: Without dead ends: 67118 [2022-07-21 07:55:26,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-21 07:55:26,644 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 8410 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8410 SdHoareTripleChecker+Valid, 3902 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:26,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8410 Valid, 3902 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 07:55:26,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67118 states. [2022-07-21 07:55:30,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67118 to 37890. [2022-07-21 07:55:30,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37890 states, 37888 states have (on average 1.4409311655405406) internal successors, (54594), 37889 states have internal predecessors, (54594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:30,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37890 states to 37890 states and 54594 transitions. [2022-07-21 07:55:30,136 INFO L78 Accepts]: Start accepts. Automaton has 37890 states and 54594 transitions. Word has length 112 [2022-07-21 07:55:30,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:30,137 INFO L495 AbstractCegarLoop]: Abstraction has 37890 states and 54594 transitions. [2022-07-21 07:55:30,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:30,137 INFO L276 IsEmpty]: Start isEmpty. Operand 37890 states and 54594 transitions. [2022-07-21 07:55:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 07:55:30,147 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:30,148 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:30,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 07:55:30,148 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:30,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:30,149 INFO L85 PathProgramCache]: Analyzing trace with hash 711119841, now seen corresponding path program 1 times [2022-07-21 07:55:30,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:30,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263275287] [2022-07-21 07:55:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:30,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:30,238 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-21 07:55:30,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:30,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263275287] [2022-07-21 07:55:30,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263275287] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:30,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:30,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 07:55:30,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605029959] [2022-07-21 07:55:30,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:30,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 07:55:30,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:30,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 07:55:30,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:55:30,241 INFO L87 Difference]: Start difference. First operand 37890 states and 54594 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:36,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:36,486 INFO L93 Difference]: Finished difference Result 82928 states and 119721 transitions. [2022-07-21 07:55:36,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 07:55:36,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-21 07:55:36,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:36,596 INFO L225 Difference]: With dead ends: 82928 [2022-07-21 07:55:36,596 INFO L226 Difference]: Without dead ends: 75022 [2022-07-21 07:55:36,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-21 07:55:36,627 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 8478 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8478 SdHoareTripleChecker+Valid, 3918 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:36,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8478 Valid, 3918 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 07:55:36,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75022 states. [2022-07-21 07:55:41,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75022 to 45794. [2022-07-21 07:55:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45794 states, 45792 states have (on average 1.4395964360587001) internal successors, (65922), 45793 states have internal predecessors, (65922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:41,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45794 states to 45794 states and 65922 transitions. [2022-07-21 07:55:41,120 INFO L78 Accepts]: Start accepts. Automaton has 45794 states and 65922 transitions. Word has length 112 [2022-07-21 07:55:41,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:41,121 INFO L495 AbstractCegarLoop]: Abstraction has 45794 states and 65922 transitions. [2022-07-21 07:55:41,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:41,121 INFO L276 IsEmpty]: Start isEmpty. Operand 45794 states and 65922 transitions. [2022-07-21 07:55:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 07:55:41,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:41,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:41,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 07:55:41,132 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:41,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:41,133 INFO L85 PathProgramCache]: Analyzing trace with hash 890525825, now seen corresponding path program 1 times [2022-07-21 07:55:41,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:41,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654870086] [2022-07-21 07:55:41,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:41,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 07:55:41,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:41,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654870086] [2022-07-21 07:55:41,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654870086] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:41,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:41,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 07:55:41,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973816044] [2022-07-21 07:55:41,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:41,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 07:55:41,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:41,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 07:55:41,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:55:41,224 INFO L87 Difference]: Start difference. First operand 45794 states and 65922 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:48,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:55:48,679 INFO L93 Difference]: Finished difference Result 90832 states and 131049 transitions. [2022-07-21 07:55:48,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 07:55:48,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-21 07:55:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:55:48,795 INFO L225 Difference]: With dead ends: 90832 [2022-07-21 07:55:48,795 INFO L226 Difference]: Without dead ends: 82926 [2022-07-21 07:55:48,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-21 07:55:48,824 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 8582 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8582 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:55:48,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8582 Valid, 3911 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 07:55:48,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82926 states. [2022-07-21 07:55:54,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82926 to 53698. [2022-07-21 07:55:54,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53698 states, 53696 states have (on average 1.4386546483909417) internal successors, (77250), 53697 states have internal predecessors, (77250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:54,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53698 states to 53698 states and 77250 transitions. [2022-07-21 07:55:54,785 INFO L78 Accepts]: Start accepts. Automaton has 53698 states and 77250 transitions. Word has length 112 [2022-07-21 07:55:54,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:55:54,786 INFO L495 AbstractCegarLoop]: Abstraction has 53698 states and 77250 transitions. [2022-07-21 07:55:54,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:55:54,786 INFO L276 IsEmpty]: Start isEmpty. Operand 53698 states and 77250 transitions. [2022-07-21 07:55:54,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 07:55:54,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:55:54,797 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:55:54,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 07:55:54,797 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:55:54,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:55:54,798 INFO L85 PathProgramCache]: Analyzing trace with hash -420877289, now seen corresponding path program 1 times [2022-07-21 07:55:54,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:55:54,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48288] [2022-07-21 07:55:54,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:55:54,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:55:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:55:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 07:55:54,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:55:54,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48288] [2022-07-21 07:55:54,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:55:54,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:55:54,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 07:55:54,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264474166] [2022-07-21 07:55:54,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:55:54,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 07:55:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:55:54,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 07:55:54,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:55:54,976 INFO L87 Difference]: Start difference. First operand 53698 states and 77250 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 07:56:04,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:56:04,216 INFO L93 Difference]: Finished difference Result 93936 states and 135529 transitions. [2022-07-21 07:56:04,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 07:56:04,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-07-21 07:56:04,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:56:04,347 INFO L225 Difference]: With dead ends: 93936 [2022-07-21 07:56:04,347 INFO L226 Difference]: Without dead ends: 88430 [2022-07-21 07:56:04,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-21 07:56:04,377 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 8579 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8579 SdHoareTripleChecker+Valid, 3833 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:56:04,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8579 Valid, 3833 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 07:56:04,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88430 states.