./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal187.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal187.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8 --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 64bit --witnessprinter.graph.data.programhash daaebd1b12ce6b2d857d386ae1fbde227e2fee6ce776e64d90576ca587792427 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:00:55,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:00:55,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:00:55,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:00:55,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:00:55,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:00:55,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:00:55,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:00:55,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:00:55,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:00:55,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:00:55,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:00:55,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:00:55,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:00:55,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:00:55,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:00:55,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:00:55,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:00:55,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:00:55,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:00:55,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:00:55,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:00:55,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:00:55,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:00:55,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:00:55,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:00:55,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:00:55,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:00:55,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:00:55,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:00:55,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:00:55,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:00:55,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:00:55,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:00:55,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:00:55,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:00:55,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:00:55,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:00:55,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:00:55,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:00:55,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:00:55,638 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:00:55,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:00:55,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:00:55,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:00:55,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:00:55,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:00:55,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:00:55,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:00:55,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:00:55,661 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:00:55,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:00:55,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:00:55,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:00:55,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:00:55,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:00:55,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:00:55,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:00:55,676 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:00:55,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:00:55,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:00:55,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:00:55,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:00:55,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:00:55,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:00:55,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:00:55,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:00:55,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:00:55,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:00:55,679 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:00:55,680 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:00:55,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:00:55,680 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daaebd1b12ce6b2d857d386ae1fbde227e2fee6ce776e64d90576ca587792427 [2022-11-16 11:00:55,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:00:56,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:00:56,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:00:56,011 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:00:56,012 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:00:56,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal187.c [2022-11-16 11:00:56,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/data/29b2241b0/7f6a2b359bf4492aa0c8a65f4270efb7/FLAG0ba93eb9b [2022-11-16 11:00:57,271 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:00:57,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal187.c [2022-11-16 11:00:57,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/data/29b2241b0/7f6a2b359bf4492aa0c8a65f4270efb7/FLAG0ba93eb9b [2022-11-16 11:00:57,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/data/29b2241b0/7f6a2b359bf4492aa0c8a65f4270efb7 [2022-11-16 11:00:57,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:00:57,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:00:57,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:00:57,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:00:57,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:00:57,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:00:57" (1/1) ... [2022-11-16 11:00:57,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d133abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:00:57, skipping insertion in model container [2022-11-16 11:00:57,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:00:57" (1/1) ... [2022-11-16 11:00:57,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:00:57,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:00:58,495 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal187.c[1107,1120] [2022-11-16 11:01:01,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:01:01,226 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:01:01,241 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal187.c[1107,1120] [2022-11-16 11:01:03,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:01:03,136 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:01:03,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03 WrapperNode [2022-11-16 11:01:03,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:01:03,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:01:03,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:01:03,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:01:03,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:03,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:05,913 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56843 [2022-11-16 11:01:05,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:01:05,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:01:05,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:01:05,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:01:05,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:05,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:06,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:06,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:07,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:07,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:07,629 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:07,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:08,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:01:08,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:01:08,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:01:08,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:01:08,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (1/1) ... [2022-11-16 11:01:08,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:01:08,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:01:08,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:01:08,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c960a53-a7de-4869-9838-ca440f624cfc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:01:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:01:08,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:01:12,015 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:01:12,017 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:01:55,028 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:01:55,090 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:01:55,090 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:01:55,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:01:55 BoogieIcfgContainer [2022-11-16 11:01:55,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:01:55,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:01:55,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:01:55,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:01:55,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:00:57" (1/3) ... [2022-11-16 11:01:55,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e102a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:01:55, skipping insertion in model container [2022-11-16 11:01:55,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:03" (2/3) ... [2022-11-16 11:01:55,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e102a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:01:55, skipping insertion in model container [2022-11-16 11:01:55,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:01:55" (3/3) ... [2022-11-16 11:01:55,111 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal187.c [2022-11-16 11:01:55,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:01:55,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:01:55,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:01:55,320 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@783053ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:01:55,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:01:55,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 10808 states, 10806 states have (on average 1.6664815843050158) internal successors, (18008), 10807 states have internal predecessors, (18008), 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) [2022-11-16 11:01:55,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-16 11:01:55,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:01:55,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:01:55,419 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:01:55,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:01:55,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1645180662, now seen corresponding path program 1 times [2022-11-16 11:01:55,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:01:55,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240347310] [2022-11-16 11:01:55,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:01:55,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:01:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:03,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:03,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240347310] [2022-11-16 11:02:03,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240347310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:03,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:03,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:02:03,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481372177] [2022-11-16 11:02:03,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:03,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:02:03,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:03,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:02:03,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:02:03,805 INFO L87 Difference]: Start difference. First operand has 10808 states, 10806 states have (on average 1.6664815843050158) internal successors, (18008), 10807 states have internal predecessors, (18008), 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 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 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) [2022-11-16 11:02:04,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:04,802 INFO L93 Difference]: Finished difference Result 33289 states and 55477 transitions. [2022-11-16 11:02:04,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:02:04,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 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 591 [2022-11-16 11:02:04,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:04,904 INFO L225 Difference]: With dead ends: 33289 [2022-11-16 11:02:04,904 INFO L226 Difference]: Without dead ends: 22483 [2022-11-16 11:02:04,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:02:04,927 INFO L413 NwaCegarLoop]: 19465 mSDtfsCounter, 53982 mSDsluCounter, 20923 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53982 SdHoareTripleChecker+Valid, 40388 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:04,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53982 Valid, 40388 Invalid, 18 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:02:04,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22483 states. [2022-11-16 11:02:05,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22483 to 10806. [2022-11-16 11:02:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6662656177695512) internal successors, (18004), 10805 states have internal predecessors, (18004), 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) [2022-11-16 11:02:05,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 18004 transitions. [2022-11-16 11:02:05,327 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 18004 transitions. Word has length 591 [2022-11-16 11:02:05,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:05,331 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 18004 transitions. [2022-11-16 11:02:05,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 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) [2022-11-16 11:02:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 18004 transitions. [2022-11-16 11:02:05,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-11-16 11:02:05,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:05,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:05,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:02:05,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:02:05,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:05,352 INFO L85 PathProgramCache]: Analyzing trace with hash -537278566, now seen corresponding path program 1 times [2022-11-16 11:02:05,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:05,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203670540] [2022-11-16 11:02:05,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:05,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:08,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:08,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203670540] [2022-11-16 11:02:08,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203670540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:08,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:08,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:02:08,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905126052] [2022-11-16 11:02:08,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:08,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:02:08,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:08,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:02:08,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:02:08,273 INFO L87 Difference]: Start difference. First operand 10806 states and 18004 transitions. Second operand has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 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) [2022-11-16 11:02:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:15,854 INFO L93 Difference]: Finished difference Result 42642 states and 70862 transitions. [2022-11-16 11:02:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:02:15,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 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 592 [2022-11-16 11:02:15,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:15,916 INFO L225 Difference]: With dead ends: 42642 [2022-11-16 11:02:15,916 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:02:15,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:02:15,936 INFO L413 NwaCegarLoop]: 34282 mSDtfsCounter, 84432 mSDsluCounter, 34285 mSDsCounter, 0 mSdLazyCounter, 4106 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84432 SdHoareTripleChecker+Valid, 68567 SdHoareTripleChecker+Invalid, 4676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 4106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:15,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84432 Valid, 68567 Invalid, 4676 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [570 Valid, 4106 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-16 11:02:15,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:02:16,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:02:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.666173068024063) internal successors, (18003), 10805 states have internal predecessors, (18003), 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) [2022-11-16 11:02:16,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 18003 transitions. [2022-11-16 11:02:16,198 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 18003 transitions. Word has length 592 [2022-11-16 11:02:16,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:16,199 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 18003 transitions. [2022-11-16 11:02:16,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 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) [2022-11-16 11:02:16,199 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 18003 transitions. [2022-11-16 11:02:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2022-11-16 11:02:16,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:16,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:16,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:02:16,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:02:16,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:16,206 INFO L85 PathProgramCache]: Analyzing trace with hash 321774786, now seen corresponding path program 1 times [2022-11-16 11:02:16,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:16,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033349927] [2022-11-16 11:02:16,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:16,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:18,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:18,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033349927] [2022-11-16 11:02:18,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033349927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:18,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:18,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:02:18,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434588273] [2022-11-16 11:02:18,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:18,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:02:18,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:18,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:02:18,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:02:18,561 INFO L87 Difference]: Start difference. First operand 10806 states and 18003 transitions. Second operand has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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) [2022-11-16 11:02:26,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:26,160 INFO L93 Difference]: Finished difference Result 32412 states and 54001 transitions. [2022-11-16 11:02:26,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:02:26,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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 593 [2022-11-16 11:02:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:26,197 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:02:26,197 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:02:26,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:02:26,211 INFO L413 NwaCegarLoop]: 16276 mSDtfsCounter, 53148 mSDsluCounter, 15591 mSDsCounter, 0 mSdLazyCounter, 4972 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53148 SdHoareTripleChecker+Valid, 31867 SdHoareTripleChecker+Invalid, 4974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:26,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53148 Valid, 31867 Invalid, 4974 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4972 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-16 11:02:26,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:02:26,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:02:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6660805182785747) internal successors, (18002), 10805 states have internal predecessors, (18002), 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) [2022-11-16 11:02:26,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 18002 transitions. [2022-11-16 11:02:26,554 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 18002 transitions. Word has length 593 [2022-11-16 11:02:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:26,555 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 18002 transitions. [2022-11-16 11:02:26,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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) [2022-11-16 11:02:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 18002 transitions. [2022-11-16 11:02:26,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2022-11-16 11:02:26,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:26,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:26,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:02:26,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:02:26,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:26,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1856380646, now seen corresponding path program 1 times [2022-11-16 11:02:26,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:26,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8126674] [2022-11-16 11:02:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:26,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:28,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:28,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:28,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8126674] [2022-11-16 11:02:28,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8126674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:28,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:28,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:02:28,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936655427] [2022-11-16 11:02:28,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:28,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:02:28,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:28,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:02:28,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:02:28,864 INFO L87 Difference]: Start difference. First operand 10806 states and 18002 transitions. Second operand has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 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) [2022-11-16 11:02:35,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:35,865 INFO L93 Difference]: Finished difference Result 32412 states and 53998 transitions. [2022-11-16 11:02:35,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:02:35,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 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 594 [2022-11-16 11:02:35,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:35,907 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:02:35,908 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:02:35,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:02:35,932 INFO L413 NwaCegarLoop]: 16349 mSDtfsCounter, 53051 mSDsluCounter, 15591 mSDsCounter, 0 mSdLazyCounter, 4991 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53051 SdHoareTripleChecker+Valid, 31940 SdHoareTripleChecker+Invalid, 4993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:35,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53051 Valid, 31940 Invalid, 4993 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4991 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-16 11:02:35,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:02:36,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:02:36,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6659879685330865) internal successors, (18001), 10805 states have internal predecessors, (18001), 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) [2022-11-16 11:02:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 18001 transitions. [2022-11-16 11:02:36,159 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 18001 transitions. Word has length 594 [2022-11-16 11:02:36,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:36,160 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 18001 transitions. [2022-11-16 11:02:36,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 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) [2022-11-16 11:02:36,160 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 18001 transitions. [2022-11-16 11:02:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-11-16 11:02:36,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:36,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:36,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:02:36,166 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:02:36,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:36,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1089387948, now seen corresponding path program 1 times [2022-11-16 11:02:36,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:36,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96341832] [2022-11-16 11:02:36,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:36,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:38,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:38,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:38,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96341832] [2022-11-16 11:02:38,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96341832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:38,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:38,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:02:38,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129464248] [2022-11-16 11:02:38,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:38,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:02:38,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:38,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:02:38,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:02:38,217 INFO L87 Difference]: Start difference. First operand 10806 states and 18001 transitions. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2022-11-16 11:02:46,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:46,189 INFO L93 Difference]: Finished difference Result 32412 states and 53995 transitions. [2022-11-16 11:02:46,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:02:46,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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 595 [2022-11-16 11:02:46,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:46,215 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:02:46,216 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:02:46,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:02:46,230 INFO L413 NwaCegarLoop]: 31179 mSDtfsCounter, 35989 mSDsluCounter, 15591 mSDsCounter, 0 mSdLazyCounter, 7218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35989 SdHoareTripleChecker+Valid, 46770 SdHoareTripleChecker+Invalid, 7220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:46,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35989 Valid, 46770 Invalid, 7220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 7218 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-16 11:02:46,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:02:46,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:02:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6658954187875983) internal successors, (18000), 10805 states have internal predecessors, (18000), 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) [2022-11-16 11:02:46,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 18000 transitions. [2022-11-16 11:02:46,534 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 18000 transitions. Word has length 595 [2022-11-16 11:02:46,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:46,535 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 18000 transitions. [2022-11-16 11:02:46,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2022-11-16 11:02:46,535 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 18000 transitions. [2022-11-16 11:02:46,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-11-16 11:02:46,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:46,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:46,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:02:46,545 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:02:46,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:46,546 INFO L85 PathProgramCache]: Analyzing trace with hash -580308620, now seen corresponding path program 1 times [2022-11-16 11:02:46,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:46,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513383913] [2022-11-16 11:02:46,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:46,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:48,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:48,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513383913] [2022-11-16 11:02:48,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513383913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:48,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:48,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:02:48,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580121304] [2022-11-16 11:02:48,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:48,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:02:48,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:48,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:02:48,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:02:48,626 INFO L87 Difference]: Start difference. First operand 10806 states and 18000 transitions. Second operand has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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) [2022-11-16 11:02:56,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:02:56,330 INFO L93 Difference]: Finished difference Result 32412 states and 53992 transitions. [2022-11-16 11:02:56,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:02:56,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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 596 [2022-11-16 11:02:56,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:02:56,353 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:02:56,353 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:02:56,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:02:56,366 INFO L413 NwaCegarLoop]: 31179 mSDtfsCounter, 53568 mSDsluCounter, 15590 mSDsCounter, 0 mSdLazyCounter, 7215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53568 SdHoareTripleChecker+Valid, 46769 SdHoareTripleChecker+Invalid, 7217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:02:56,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53568 Valid, 46769 Invalid, 7217 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 7215 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-16 11:02:56,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:02:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:02:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.66580286904211) internal successors, (17999), 10805 states have internal predecessors, (17999), 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) [2022-11-16 11:02:56,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17999 transitions. [2022-11-16 11:02:56,610 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17999 transitions. Word has length 596 [2022-11-16 11:02:56,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:02:56,611 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17999 transitions. [2022-11-16 11:02:56,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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) [2022-11-16 11:02:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17999 transitions. [2022-11-16 11:02:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2022-11-16 11:02:56,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:02:56,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:02:56,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:02:56,617 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:02:56,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:02:56,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1328213836, now seen corresponding path program 1 times [2022-11-16 11:02:56,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:02:56,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184407362] [2022-11-16 11:02:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:02:56,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:02:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:02:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:02:58,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:02:58,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184407362] [2022-11-16 11:02:58,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184407362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:02:58,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:02:58,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:02:58,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735425784] [2022-11-16 11:02:58,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:02:58,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:02:58,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:02:58,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:02:58,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:02:58,890 INFO L87 Difference]: Start difference. First operand 10806 states and 17999 transitions. Second operand has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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) [2022-11-16 11:03:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:03:05,531 INFO L93 Difference]: Finished difference Result 32412 states and 53989 transitions. [2022-11-16 11:03:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:03:05,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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 597 [2022-11-16 11:03:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:03:05,546 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:03:05,546 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:03:05,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:03:05,555 INFO L413 NwaCegarLoop]: 16406 mSDtfsCounter, 52945 mSDsluCounter, 15591 mSDsCounter, 0 mSdLazyCounter, 5025 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52945 SdHoareTripleChecker+Valid, 31997 SdHoareTripleChecker+Invalid, 5027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:03:05,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52945 Valid, 31997 Invalid, 5027 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 5025 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-16 11:03:05,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:03:05,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:03:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6657103192966218) internal successors, (17998), 10805 states have internal predecessors, (17998), 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) [2022-11-16 11:03:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17998 transitions. [2022-11-16 11:03:05,757 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17998 transitions. Word has length 597 [2022-11-16 11:03:05,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:03:05,758 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17998 transitions. [2022-11-16 11:03:05,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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) [2022-11-16 11:03:05,759 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17998 transitions. [2022-11-16 11:03:05,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-11-16 11:03:05,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:03:05,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:03:05,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:03:05,764 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:03:05,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:03:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1483654462, now seen corresponding path program 1 times [2022-11-16 11:03:05,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:03:05,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991953911] [2022-11-16 11:03:05,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:03:05,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:03:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:03:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:03:07,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:03:07,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991953911] [2022-11-16 11:03:07,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991953911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:03:07,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:03:07,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:03:07,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817344100] [2022-11-16 11:03:07,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:03:07,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:03:07,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:03:07,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:03:07,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:03:07,525 INFO L87 Difference]: Start difference. First operand 10806 states and 17998 transitions. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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) [2022-11-16 11:03:14,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:03:14,361 INFO L93 Difference]: Finished difference Result 32412 states and 53986 transitions. [2022-11-16 11:03:14,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:03:14,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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 598 [2022-11-16 11:03:14,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:03:14,375 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:03:14,375 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:03:14,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:03:14,384 INFO L413 NwaCegarLoop]: 16462 mSDtfsCounter, 87320 mSDsluCounter, 15590 mSDsCounter, 0 mSdLazyCounter, 5031 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87320 SdHoareTripleChecker+Valid, 32052 SdHoareTripleChecker+Invalid, 5033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:03:14,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87320 Valid, 32052 Invalid, 5033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 5031 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-16 11:03:14,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:03:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:03:14,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6656177695511338) internal successors, (17997), 10805 states have internal predecessors, (17997), 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) [2022-11-16 11:03:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17997 transitions. [2022-11-16 11:03:14,656 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17997 transitions. Word has length 598 [2022-11-16 11:03:14,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:03:14,657 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17997 transitions. [2022-11-16 11:03:14,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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) [2022-11-16 11:03:14,659 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17997 transitions. [2022-11-16 11:03:14,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-16 11:03:14,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:03:14,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:03:14,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:03:14,665 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:03:14,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:03:14,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1142268834, now seen corresponding path program 1 times [2022-11-16 11:03:14,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:03:14,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428835549] [2022-11-16 11:03:14,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:03:14,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:03:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:03:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:03:16,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:03:16,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428835549] [2022-11-16 11:03:16,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428835549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:03:16,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:03:16,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:03:16,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518437151] [2022-11-16 11:03:16,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:03:16,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:03:16,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:03:16,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:03:16,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:03:16,602 INFO L87 Difference]: Start difference. First operand 10806 states and 17997 transitions. Second operand has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 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) [2022-11-16 11:03:23,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:03:23,549 INFO L93 Difference]: Finished difference Result 32412 states and 53983 transitions. [2022-11-16 11:03:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:03:23,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 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 599 [2022-11-16 11:03:23,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:03:23,565 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:03:23,565 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:03:23,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:03:23,575 INFO L413 NwaCegarLoop]: 16572 mSDtfsCounter, 87040 mSDsluCounter, 15590 mSDsCounter, 0 mSdLazyCounter, 5033 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87040 SdHoareTripleChecker+Valid, 32162 SdHoareTripleChecker+Invalid, 5035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:03:23,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87040 Valid, 32162 Invalid, 5035 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 5033 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-16 11:03:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:03:23,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:03:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6655252198056456) internal successors, (17996), 10805 states have internal predecessors, (17996), 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) [2022-11-16 11:03:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17996 transitions. [2022-11-16 11:03:23,829 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17996 transitions. Word has length 599 [2022-11-16 11:03:23,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:03:23,831 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17996 transitions. [2022-11-16 11:03:23,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 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) [2022-11-16 11:03:23,831 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17996 transitions. [2022-11-16 11:03:23,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2022-11-16 11:03:23,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:03:23,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:03:23,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:03:23,841 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:03:23,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:03:23,842 INFO L85 PathProgramCache]: Analyzing trace with hash 375526760, now seen corresponding path program 1 times [2022-11-16 11:03:23,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:03:23,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228016662] [2022-11-16 11:03:23,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:03:23,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:03:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:03:25,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:03:25,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:03:25,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228016662] [2022-11-16 11:03:25,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228016662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:03:25,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:03:25,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:03:25,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874087580] [2022-11-16 11:03:25,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:03:25,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:03:25,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:03:25,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:03:25,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:03:25,818 INFO L87 Difference]: Start difference. First operand 10806 states and 17996 transitions. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2022-11-16 11:03:32,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:03:32,713 INFO L93 Difference]: Finished difference Result 32412 states and 53980 transitions. [2022-11-16 11:03:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:03:32,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 600 [2022-11-16 11:03:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:03:32,728 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:03:32,728 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:03:32,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:03:32,738 INFO L413 NwaCegarLoop]: 16644 mSDtfsCounter, 52654 mSDsluCounter, 15591 mSDsCounter, 0 mSdLazyCounter, 5063 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52654 SdHoareTripleChecker+Valid, 32235 SdHoareTripleChecker+Invalid, 5065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:03:32,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52654 Valid, 32235 Invalid, 5065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 5063 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-16 11:03:32,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:03:32,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:03:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6654326700601574) internal successors, (17995), 10805 states have internal predecessors, (17995), 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) [2022-11-16 11:03:33,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17995 transitions. [2022-11-16 11:03:33,021 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17995 transitions. Word has length 600 [2022-11-16 11:03:33,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:03:33,022 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17995 transitions. [2022-11-16 11:03:33,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2022-11-16 11:03:33,022 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17995 transitions. [2022-11-16 11:03:33,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-11-16 11:03:33,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:03:33,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:03:33,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:03:33,028 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:03:33,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:03:33,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1194000064, now seen corresponding path program 1 times [2022-11-16 11:03:33,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:03:33,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336673071] [2022-11-16 11:03:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:03:33,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:03:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:03:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:03:34,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:03:34,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336673071] [2022-11-16 11:03:34,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336673071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:03:34,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:03:34,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:03:34,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631084509] [2022-11-16 11:03:34,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:03:34,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:03:34,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:03:34,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:03:34,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:03:34,680 INFO L87 Difference]: Start difference. First operand 10806 states and 17995 transitions. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2022-11-16 11:03:41,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:03:41,589 INFO L93 Difference]: Finished difference Result 32412 states and 53977 transitions. [2022-11-16 11:03:41,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:03:41,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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 601 [2022-11-16 11:03:41,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:03:41,607 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:03:41,607 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:03:41,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:03:41,616 INFO L413 NwaCegarLoop]: 16649 mSDtfsCounter, 86756 mSDsluCounter, 15590 mSDsCounter, 0 mSdLazyCounter, 5065 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86756 SdHoareTripleChecker+Valid, 32239 SdHoareTripleChecker+Invalid, 5067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:03:41,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86756 Valid, 32239 Invalid, 5067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 5065 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-16 11:03:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:03:41,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:03:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6653401203146692) internal successors, (17994), 10805 states have internal predecessors, (17994), 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) [2022-11-16 11:03:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17994 transitions. [2022-11-16 11:03:41,803 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17994 transitions. Word has length 601 [2022-11-16 11:03:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:03:41,804 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17994 transitions. [2022-11-16 11:03:41,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2022-11-16 11:03:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17994 transitions. [2022-11-16 11:03:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-11-16 11:03:41,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:03:41,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:03:41,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:03:41,811 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:03:41,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:03:41,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1259235508, now seen corresponding path program 1 times [2022-11-16 11:03:41,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:03:41,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569236231] [2022-11-16 11:03:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:03:41,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:03:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:03:43,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:03:43,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:03:43,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569236231] [2022-11-16 11:03:43,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569236231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:03:43,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:03:43,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:03:43,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949796094] [2022-11-16 11:03:43,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:03:43,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:03:43,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:03:43,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:03:43,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:03:43,461 INFO L87 Difference]: Start difference. First operand 10806 states and 17994 transitions. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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) [2022-11-16 11:03:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:03:50,362 INFO L93 Difference]: Finished difference Result 32412 states and 53974 transitions. [2022-11-16 11:03:50,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:03:50,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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 602 [2022-11-16 11:03:50,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:03:50,376 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:03:50,376 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:03:50,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:03:50,384 INFO L413 NwaCegarLoop]: 16650 mSDtfsCounter, 86728 mSDsluCounter, 15590 mSDsCounter, 0 mSdLazyCounter, 5071 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86728 SdHoareTripleChecker+Valid, 32240 SdHoareTripleChecker+Invalid, 5073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:03:50,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86728 Valid, 32240 Invalid, 5073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 5071 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-16 11:03:50,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:03:50,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:03:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.665247570569181) internal successors, (17993), 10805 states have internal predecessors, (17993), 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) [2022-11-16 11:03:50,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17993 transitions. [2022-11-16 11:03:50,550 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17993 transitions. Word has length 602 [2022-11-16 11:03:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:03:50,551 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17993 transitions. [2022-11-16 11:03:50,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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) [2022-11-16 11:03:50,551 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17993 transitions. [2022-11-16 11:03:50,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2022-11-16 11:03:50,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:03:50,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:03:50,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:03:50,558 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:03:50,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:03:50,559 INFO L85 PathProgramCache]: Analyzing trace with hash 952159756, now seen corresponding path program 1 times [2022-11-16 11:03:50,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:03:50,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61313433] [2022-11-16 11:03:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:03:50,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:03:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:03:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:03:52,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:03:52,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61313433] [2022-11-16 11:03:52,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61313433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:03:52,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:03:52,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:03:52,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656113179] [2022-11-16 11:03:52,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:03:52,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:03:52,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:03:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:03:52,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:03:52,369 INFO L87 Difference]: Start difference. First operand 10806 states and 17993 transitions. Second operand has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 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) [2022-11-16 11:03:59,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:03:59,147 INFO L93 Difference]: Finished difference Result 32412 states and 53971 transitions. [2022-11-16 11:03:59,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:03:59,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 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 603 [2022-11-16 11:03:59,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:03:59,161 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:03:59,161 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:03:59,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:03:59,168 INFO L413 NwaCegarLoop]: 16655 mSDtfsCounter, 52618 mSDsluCounter, 15591 mSDsCounter, 0 mSdLazyCounter, 5073 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52618 SdHoareTripleChecker+Valid, 32246 SdHoareTripleChecker+Invalid, 5075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:03:59,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52618 Valid, 32246 Invalid, 5075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 5073 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-16 11:03:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:03:59,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:03:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6651550208236927) internal successors, (17992), 10805 states have internal predecessors, (17992), 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) [2022-11-16 11:03:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17992 transitions. [2022-11-16 11:03:59,388 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17992 transitions. Word has length 603 [2022-11-16 11:03:59,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:03:59,389 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17992 transitions. [2022-11-16 11:03:59,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 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) [2022-11-16 11:03:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17992 transitions. [2022-11-16 11:03:59,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-11-16 11:03:59,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:03:59,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:03:59,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:03:59,399 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:03:59,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:03:59,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1585645568, now seen corresponding path program 1 times [2022-11-16 11:03:59,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:03:59,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993047707] [2022-11-16 11:03:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:03:59,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:02,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:02,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:02,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993047707] [2022-11-16 11:04:02,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993047707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:02,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:02,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:04:02,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222588498] [2022-11-16 11:04:02,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:02,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:04:02,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:02,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:04:02,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:04:02,154 INFO L87 Difference]: Start difference. First operand 10806 states and 17992 transitions. Second operand has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2022-11-16 11:04:06,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:06,428 INFO L93 Difference]: Finished difference Result 22178 states and 36925 transitions. [2022-11-16 11:04:06,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:04:06,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 604 [2022-11-16 11:04:06,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:06,437 INFO L225 Difference]: With dead ends: 22178 [2022-11-16 11:04:06,437 INFO L226 Difference]: Without dead ends: 11374 [2022-11-16 11:04:06,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:06,444 INFO L413 NwaCegarLoop]: 16354 mSDtfsCounter, 35590 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35590 SdHoareTripleChecker+Valid, 17120 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:06,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35590 Valid, 17120 Invalid, 2758 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-16 11:04:06,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11374 states. [2022-11-16 11:04:06,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11374 to 10806. [2022-11-16 11:04:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6650624710782045) internal successors, (17991), 10805 states have internal predecessors, (17991), 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) [2022-11-16 11:04:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17991 transitions. [2022-11-16 11:04:06,618 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17991 transitions. Word has length 604 [2022-11-16 11:04:06,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:06,619 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17991 transitions. [2022-11-16 11:04:06,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2022-11-16 11:04:06,619 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17991 transitions. [2022-11-16 11:04:06,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-11-16 11:04:06,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:06,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:06,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:04:06,625 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:06,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:06,626 INFO L85 PathProgramCache]: Analyzing trace with hash 272762494, now seen corresponding path program 1 times [2022-11-16 11:04:06,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:06,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490127952] [2022-11-16 11:04:06,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:06,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:09,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:09,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490127952] [2022-11-16 11:04:09,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490127952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:09,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:09,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:04:09,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939257848] [2022-11-16 11:04:09,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:09,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:04:09,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:09,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:04:09,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:04:09,425 INFO L87 Difference]: Start difference. First operand 10806 states and 17991 transitions. Second operand has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2022-11-16 11:04:13,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:13,387 INFO L93 Difference]: Finished difference Result 22226 states and 37001 transitions. [2022-11-16 11:04:13,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:04:13,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 604 [2022-11-16 11:04:13,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:13,397 INFO L225 Difference]: With dead ends: 22226 [2022-11-16 11:04:13,397 INFO L226 Difference]: Without dead ends: 11422 [2022-11-16 11:04:13,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:13,404 INFO L413 NwaCegarLoop]: 16401 mSDtfsCounter, 35555 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35555 SdHoareTripleChecker+Valid, 17214 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:13,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35555 Valid, 17214 Invalid, 2819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 11:04:13,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11422 states. [2022-11-16 11:04:13,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11422 to 10806. [2022-11-16 11:04:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6649699213327163) internal successors, (17990), 10805 states have internal predecessors, (17990), 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) [2022-11-16 11:04:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17990 transitions. [2022-11-16 11:04:13,588 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17990 transitions. Word has length 604 [2022-11-16 11:04:13,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:13,589 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17990 transitions. [2022-11-16 11:04:13,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2022-11-16 11:04:13,589 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17990 transitions. [2022-11-16 11:04:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-11-16 11:04:13,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:13,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:13,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:04:13,593 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:13,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:13,594 INFO L85 PathProgramCache]: Analyzing trace with hash 520730688, now seen corresponding path program 1 times [2022-11-16 11:04:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:13,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590084476] [2022-11-16 11:04:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:13,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:15,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:15,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590084476] [2022-11-16 11:04:15,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590084476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:15,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:15,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:04:15,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614388710] [2022-11-16 11:04:15,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:15,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:04:15,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:15,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:04:15,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:04:15,755 INFO L87 Difference]: Start difference. First operand 10806 states and 17990 transitions. Second operand has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2022-11-16 11:04:20,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:20,210 INFO L93 Difference]: Finished difference Result 32412 states and 53962 transitions. [2022-11-16 11:04:20,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:04:20,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 604 [2022-11-16 11:04:20,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:20,229 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:04:20,229 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:04:20,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:20,238 INFO L413 NwaCegarLoop]: 17213 mSDtfsCounter, 52926 mSDsluCounter, 16563 mSDsCounter, 0 mSdLazyCounter, 2927 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52926 SdHoareTripleChecker+Valid, 33776 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:20,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52926 Valid, 33776 Invalid, 2928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2927 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-16 11:04:20,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:04:20,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:04:20,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.664877371587228) internal successors, (17989), 10805 states have internal predecessors, (17989), 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) [2022-11-16 11:04:20,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17989 transitions. [2022-11-16 11:04:20,489 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17989 transitions. Word has length 604 [2022-11-16 11:04:20,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:20,489 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17989 transitions. [2022-11-16 11:04:20,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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) [2022-11-16 11:04:20,490 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17989 transitions. [2022-11-16 11:04:20,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-11-16 11:04:20,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:20,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:20,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:04:20,494 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:20,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash -794271632, now seen corresponding path program 1 times [2022-11-16 11:04:20,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:20,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704911601] [2022-11-16 11:04:20,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:20,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:22,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:22,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704911601] [2022-11-16 11:04:22,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704911601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:22,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:22,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:04:22,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779993591] [2022-11-16 11:04:22,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:22,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:04:22,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:22,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:04:22,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:22,061 INFO L87 Difference]: Start difference. First operand 10806 states and 17989 transitions. Second operand has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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) [2022-11-16 11:04:26,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:26,603 INFO L93 Difference]: Finished difference Result 32412 states and 53959 transitions. [2022-11-16 11:04:26,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:04:26,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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 605 [2022-11-16 11:04:26,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:26,618 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:04:26,618 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:04:26,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:04:26,626 INFO L413 NwaCegarLoop]: 17711 mSDtfsCounter, 52666 mSDsluCounter, 16564 mSDsCounter, 0 mSdLazyCounter, 2976 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52666 SdHoareTripleChecker+Valid, 34275 SdHoareTripleChecker+Invalid, 2978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:26,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52666 Valid, 34275 Invalid, 2978 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2976 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-16 11:04:26,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:04:26,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:04:26,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.66478482184174) internal successors, (17988), 10805 states have internal predecessors, (17988), 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) [2022-11-16 11:04:26,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17988 transitions. [2022-11-16 11:04:26,820 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17988 transitions. Word has length 605 [2022-11-16 11:04:26,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:26,820 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17988 transitions. [2022-11-16 11:04:26,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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) [2022-11-16 11:04:26,821 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17988 transitions. [2022-11-16 11:04:26,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2022-11-16 11:04:26,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:26,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:26,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:04:26,826 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:26,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:26,827 INFO L85 PathProgramCache]: Analyzing trace with hash -459109756, now seen corresponding path program 1 times [2022-11-16 11:04:26,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:26,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378984547] [2022-11-16 11:04:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:26,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:28,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:28,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378984547] [2022-11-16 11:04:28,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378984547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:28,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:28,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:04:28,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311226789] [2022-11-16 11:04:28,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:28,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:04:28,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:28,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:04:28,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:04:28,467 INFO L87 Difference]: Start difference. First operand 10806 states and 17988 transitions. Second operand has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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) [2022-11-16 11:04:31,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:31,679 INFO L93 Difference]: Finished difference Result 21610 states and 35974 transitions. [2022-11-16 11:04:31,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:04:31,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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 606 [2022-11-16 11:04:31,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:31,688 INFO L225 Difference]: With dead ends: 21610 [2022-11-16 11:04:31,688 INFO L226 Difference]: Without dead ends: 10806 [2022-11-16 11:04:31,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:31,694 INFO L413 NwaCegarLoop]: 16564 mSDtfsCounter, 17691 mSDsluCounter, 16563 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17691 SdHoareTripleChecker+Valid, 33127 SdHoareTripleChecker+Invalid, 2842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:31,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17691 Valid, 33127 Invalid, 2842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-16 11:04:31,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10806 states. [2022-11-16 11:04:31,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10806 to 10806. [2022-11-16 11:04:31,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6646922720962518) internal successors, (17987), 10805 states have internal predecessors, (17987), 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) [2022-11-16 11:04:31,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17987 transitions. [2022-11-16 11:04:31,804 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17987 transitions. Word has length 606 [2022-11-16 11:04:31,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:31,805 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17987 transitions. [2022-11-16 11:04:31,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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) [2022-11-16 11:04:31,805 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17987 transitions. [2022-11-16 11:04:31,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2022-11-16 11:04:31,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:31,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:31,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:04:31,812 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:31,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:31,812 INFO L85 PathProgramCache]: Analyzing trace with hash 230016962, now seen corresponding path program 1 times [2022-11-16 11:04:31,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:31,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159032441] [2022-11-16 11:04:31,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:31,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:33,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:33,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159032441] [2022-11-16 11:04:33,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159032441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:33,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:33,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:04:33,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837422905] [2022-11-16 11:04:33,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:33,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:04:33,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:33,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:04:33,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:04:33,730 INFO L87 Difference]: Start difference. First operand 10806 states and 17987 transitions. Second operand has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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) [2022-11-16 11:04:36,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:36,954 INFO L93 Difference]: Finished difference Result 21610 states and 35972 transitions. [2022-11-16 11:04:36,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:04:36,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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 606 [2022-11-16 11:04:36,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:36,965 INFO L225 Difference]: With dead ends: 21610 [2022-11-16 11:04:36,965 INFO L226 Difference]: Without dead ends: 10806 [2022-11-16 11:04:36,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:36,974 INFO L413 NwaCegarLoop]: 16564 mSDtfsCounter, 17457 mSDsluCounter, 16563 mSDsCounter, 0 mSdLazyCounter, 2840 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17457 SdHoareTripleChecker+Valid, 33127 SdHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:36,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17457 Valid, 33127 Invalid, 2840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2840 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-16 11:04:36,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10806 states. [2022-11-16 11:04:37,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10806 to 10806. [2022-11-16 11:04:37,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6645997223507636) internal successors, (17986), 10805 states have internal predecessors, (17986), 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) [2022-11-16 11:04:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17986 transitions. [2022-11-16 11:04:37,125 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17986 transitions. Word has length 606 [2022-11-16 11:04:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:37,126 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17986 transitions. [2022-11-16 11:04:37,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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) [2022-11-16 11:04:37,126 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17986 transitions. [2022-11-16 11:04:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2022-11-16 11:04:37,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:37,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:37,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:04:37,131 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:37,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:37,132 INFO L85 PathProgramCache]: Analyzing trace with hash 257082564, now seen corresponding path program 1 times [2022-11-16 11:04:37,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:37,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097423761] [2022-11-16 11:04:37,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:37,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:39,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:39,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:39,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097423761] [2022-11-16 11:04:39,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097423761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:39,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:39,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:04:39,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184445454] [2022-11-16 11:04:39,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:39,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:04:39,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:39,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:04:39,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:04:39,038 INFO L87 Difference]: Start difference. First operand 10806 states and 17986 transitions. Second operand has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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) [2022-11-16 11:04:48,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:48,680 INFO L93 Difference]: Finished difference Result 32412 states and 53950 transitions. [2022-11-16 11:04:48,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:04:48,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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 606 [2022-11-16 11:04:48,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:48,692 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:04:48,692 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:04:48,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:48,697 INFO L413 NwaCegarLoop]: 15265 mSDtfsCounter, 52768 mSDsluCounter, 14640 mSDsCounter, 0 mSdLazyCounter, 6892 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52768 SdHoareTripleChecker+Valid, 29905 SdHoareTripleChecker+Invalid, 6893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:04:48,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52768 Valid, 29905 Invalid, 6893 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 6892 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-16 11:04:48,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:04:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:04:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6645071726052754) internal successors, (17985), 10805 states have internal predecessors, (17985), 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) [2022-11-16 11:04:48,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17985 transitions. [2022-11-16 11:04:48,828 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17985 transitions. Word has length 606 [2022-11-16 11:04:48,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:04:48,828 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17985 transitions. [2022-11-16 11:04:48,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.5) internal successors, (606), 4 states have internal predecessors, (606), 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) [2022-11-16 11:04:48,829 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17985 transitions. [2022-11-16 11:04:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2022-11-16 11:04:48,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:04:48,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:04:48,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:04:48,833 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:04:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:04:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash -817564762, now seen corresponding path program 1 times [2022-11-16 11:04:48,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:04:48,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157251973] [2022-11-16 11:04:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:04:48,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:04:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:04:50,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:04:50,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:04:50,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157251973] [2022-11-16 11:04:50,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157251973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:04:50,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:04:50,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:04:50,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867584263] [2022-11-16 11:04:50,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:04:50,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:04:50,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:04:50,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:04:50,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:04:50,350 INFO L87 Difference]: Start difference. First operand 10806 states and 17985 transitions. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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) [2022-11-16 11:04:59,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:04:59,984 INFO L93 Difference]: Finished difference Result 32412 states and 53947 transitions. [2022-11-16 11:04:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:04:59,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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 607 [2022-11-16 11:04:59,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:04:59,996 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:04:59,996 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:05:00,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:00,001 INFO L413 NwaCegarLoop]: 15339 mSDtfsCounter, 87640 mSDsluCounter, 14640 mSDsCounter, 0 mSdLazyCounter, 6918 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87640 SdHoareTripleChecker+Valid, 29979 SdHoareTripleChecker+Invalid, 6920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:00,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87640 Valid, 29979 Invalid, 6920 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 6918 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-11-16 11:05:00,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:05:00,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:05:00,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6644146228597871) internal successors, (17984), 10805 states have internal predecessors, (17984), 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) [2022-11-16 11:05:00,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17984 transitions. [2022-11-16 11:05:00,141 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17984 transitions. Word has length 607 [2022-11-16 11:05:00,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:00,141 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17984 transitions. [2022-11-16 11:05:00,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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) [2022-11-16 11:05:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17984 transitions. [2022-11-16 11:05:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2022-11-16 11:05:00,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:00,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:00,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:05:00,147 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:00,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:00,148 INFO L85 PathProgramCache]: Analyzing trace with hash 459713022, now seen corresponding path program 1 times [2022-11-16 11:05:00,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:00,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978619792] [2022-11-16 11:05:00,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:00,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:01,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:01,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:01,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978619792] [2022-11-16 11:05:01,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978619792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:01,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:01,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:01,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989281349] [2022-11-16 11:05:01,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:01,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:05:01,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:01,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:05:01,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:01,619 INFO L87 Difference]: Start difference. First operand 10806 states and 17984 transitions. Second operand has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 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) [2022-11-16 11:05:12,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:12,711 INFO L93 Difference]: Finished difference Result 32412 states and 53944 transitions. [2022-11-16 11:05:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:05:12,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 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 608 [2022-11-16 11:05:12,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:05:12,734 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:05:12,735 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:05:12,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:12,744 INFO L413 NwaCegarLoop]: 29279 mSDtfsCounter, 53391 mSDsluCounter, 14640 mSDsCounter, 0 mSdLazyCounter, 10017 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53391 SdHoareTripleChecker+Valid, 43919 SdHoareTripleChecker+Invalid, 10019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:12,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53391 Valid, 43919 Invalid, 10019 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 10017 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-11-16 11:05:12,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:05:12,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:05:12,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.664322073114299) internal successors, (17983), 10805 states have internal predecessors, (17983), 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) [2022-11-16 11:05:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17983 transitions. [2022-11-16 11:05:12,966 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17983 transitions. Word has length 608 [2022-11-16 11:05:12,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:12,967 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17983 transitions. [2022-11-16 11:05:12,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 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) [2022-11-16 11:05:12,967 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17983 transitions. [2022-11-16 11:05:12,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2022-11-16 11:05:12,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:12,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:12,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:05:12,973 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:12,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:12,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1489336398, now seen corresponding path program 1 times [2022-11-16 11:05:12,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:12,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619642425] [2022-11-16 11:05:12,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:12,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:14,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:14,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619642425] [2022-11-16 11:05:14,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619642425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:14,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:14,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:14,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338647019] [2022-11-16 11:05:14,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:14,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:05:14,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:14,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:05:14,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:14,495 INFO L87 Difference]: Start difference. First operand 10806 states and 17983 transitions. Second operand has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 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) [2022-11-16 11:05:25,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:25,590 INFO L93 Difference]: Finished difference Result 32412 states and 53941 transitions. [2022-11-16 11:05:25,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:05:25,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 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 609 [2022-11-16 11:05:25,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:05:25,605 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:05:25,605 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:05:25,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:25,611 INFO L413 NwaCegarLoop]: 29279 mSDtfsCounter, 35953 mSDsluCounter, 14641 mSDsCounter, 0 mSdLazyCounter, 10014 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35953 SdHoareTripleChecker+Valid, 43920 SdHoareTripleChecker+Invalid, 10016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:25,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35953 Valid, 43920 Invalid, 10016 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 10014 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-11-16 11:05:25,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:05:25,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:05:25,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6642295233688107) internal successors, (17982), 10805 states have internal predecessors, (17982), 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) [2022-11-16 11:05:25,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17982 transitions. [2022-11-16 11:05:25,755 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17982 transitions. Word has length 609 [2022-11-16 11:05:25,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:25,756 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17982 transitions. [2022-11-16 11:05:25,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 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) [2022-11-16 11:05:25,756 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17982 transitions. [2022-11-16 11:05:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-16 11:05:25,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:25,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:25,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:05:25,762 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:25,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:25,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1225339394, now seen corresponding path program 1 times [2022-11-16 11:05:25,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:25,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052345821] [2022-11-16 11:05:25,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:25,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:27,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:27,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052345821] [2022-11-16 11:05:27,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052345821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:27,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:27,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:05:27,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719172187] [2022-11-16 11:05:27,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:27,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:05:27,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:27,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:05:27,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:05:27,812 INFO L87 Difference]: Start difference. First operand 10806 states and 17982 transitions. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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) [2022-11-16 11:05:33,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:33,390 INFO L93 Difference]: Finished difference Result 22406 states and 37271 transitions. [2022-11-16 11:05:33,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:05:33,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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 610 [2022-11-16 11:05:33,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:05:33,399 INFO L225 Difference]: With dead ends: 22406 [2022-11-16 11:05:33,399 INFO L226 Difference]: Without dead ends: 11602 [2022-11-16 11:05:33,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:33,404 INFO L413 NwaCegarLoop]: 15655 mSDtfsCounter, 35408 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 3927 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35408 SdHoareTripleChecker+Valid, 16672 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:33,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35408 Valid, 16672 Invalid, 3928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3927 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-16 11:05:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11602 states. [2022-11-16 11:05:33,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11602 to 10806. [2022-11-16 11:05:33,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6641369736233225) internal successors, (17981), 10805 states have internal predecessors, (17981), 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) [2022-11-16 11:05:33,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17981 transitions. [2022-11-16 11:05:33,519 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17981 transitions. Word has length 610 [2022-11-16 11:05:33,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:33,519 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17981 transitions. [2022-11-16 11:05:33,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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) [2022-11-16 11:05:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17981 transitions. [2022-11-16 11:05:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-16 11:05:33,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:33,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:33,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:05:33,524 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:33,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:33,524 INFO L85 PathProgramCache]: Analyzing trace with hash -807942788, now seen corresponding path program 1 times [2022-11-16 11:05:33,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:33,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130744078] [2022-11-16 11:05:33,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:33,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:35,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:35,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130744078] [2022-11-16 11:05:35,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130744078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:35,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:35,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:05:35,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057171547] [2022-11-16 11:05:35,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:35,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:05:35,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:35,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:05:35,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:05:35,563 INFO L87 Difference]: Start difference. First operand 10806 states and 17981 transitions. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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) [2022-11-16 11:05:41,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:41,179 INFO L93 Difference]: Finished difference Result 22418 states and 37285 transitions. [2022-11-16 11:05:41,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:05:41,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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 610 [2022-11-16 11:05:41,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:05:41,185 INFO L225 Difference]: With dead ends: 22418 [2022-11-16 11:05:41,185 INFO L226 Difference]: Without dead ends: 11614 [2022-11-16 11:05:41,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:41,190 INFO L413 NwaCegarLoop]: 15668 mSDtfsCounter, 35395 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 3932 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35395 SdHoareTripleChecker+Valid, 16698 SdHoareTripleChecker+Invalid, 3933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:41,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35395 Valid, 16698 Invalid, 3933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3932 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-16 11:05:41,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11614 states. [2022-11-16 11:05:41,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11614 to 10806. [2022-11-16 11:05:41,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6640444238778342) internal successors, (17980), 10805 states have internal predecessors, (17980), 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) [2022-11-16 11:05:41,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17980 transitions. [2022-11-16 11:05:41,325 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17980 transitions. Word has length 610 [2022-11-16 11:05:41,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:41,325 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17980 transitions. [2022-11-16 11:05:41,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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) [2022-11-16 11:05:41,325 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17980 transitions. [2022-11-16 11:05:41,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-16 11:05:41,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:41,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:41,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:05:41,329 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:41,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:41,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1948684478, now seen corresponding path program 1 times [2022-11-16 11:05:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:41,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30977237] [2022-11-16 11:05:41,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:41,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:43,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:43,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:43,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30977237] [2022-11-16 11:05:43,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30977237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:43,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:43,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:05:43,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686447504] [2022-11-16 11:05:43,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:43,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:05:43,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:43,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:05:43,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:05:43,025 INFO L87 Difference]: Start difference. First operand 10806 states and 17980 transitions. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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) [2022-11-16 11:05:46,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:46,442 INFO L93 Difference]: Finished difference Result 32412 states and 53932 transitions. [2022-11-16 11:05:46,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:05:46,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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 610 [2022-11-16 11:05:46,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:05:46,458 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:05:46,458 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:05:46,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:46,467 INFO L413 NwaCegarLoop]: 33927 mSDtfsCounter, 35546 mSDsluCounter, 16964 mSDsCounter, 0 mSdLazyCounter, 3033 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35546 SdHoareTripleChecker+Valid, 50891 SdHoareTripleChecker+Invalid, 3034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:46,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35546 Valid, 50891 Invalid, 3034 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3033 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-16 11:05:46,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:05:46,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:05:46,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6639518741323462) internal successors, (17979), 10805 states have internal predecessors, (17979), 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) [2022-11-16 11:05:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17979 transitions. [2022-11-16 11:05:46,610 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17979 transitions. Word has length 610 [2022-11-16 11:05:46,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:46,610 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17979 transitions. [2022-11-16 11:05:46,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 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) [2022-11-16 11:05:46,611 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17979 transitions. [2022-11-16 11:05:46,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-16 11:05:46,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:46,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:46,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:05:46,615 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:46,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:46,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1418248154, now seen corresponding path program 1 times [2022-11-16 11:05:46,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:46,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071708231] [2022-11-16 11:05:46,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:46,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:48,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:48,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:48,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071708231] [2022-11-16 11:05:48,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071708231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:48,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:48,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:05:48,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761948279] [2022-11-16 11:05:48,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:48,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:05:48,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:48,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:05:48,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:48,201 INFO L87 Difference]: Start difference. First operand 10806 states and 17979 transitions. Second operand has 5 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 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) [2022-11-16 11:05:51,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:51,530 INFO L93 Difference]: Finished difference Result 32412 states and 53929 transitions. [2022-11-16 11:05:51,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:05:51,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 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 611 [2022-11-16 11:05:51,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:05:51,542 INFO L225 Difference]: With dead ends: 32412 [2022-11-16 11:05:51,542 INFO L226 Difference]: Without dead ends: 21608 [2022-11-16 11:05:51,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:05:51,548 INFO L413 NwaCegarLoop]: 18225 mSDtfsCounter, 52550 mSDsluCounter, 16965 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52550 SdHoareTripleChecker+Valid, 35190 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:51,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52550 Valid, 35190 Invalid, 2129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-16 11:05:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21608 states. [2022-11-16 11:05:51,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21608 to 10806. [2022-11-16 11:05:51,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.663859324386858) internal successors, (17978), 10805 states have internal predecessors, (17978), 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) [2022-11-16 11:05:51,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17978 transitions. [2022-11-16 11:05:51,678 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17978 transitions. Word has length 611 [2022-11-16 11:05:51,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:51,679 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17978 transitions. [2022-11-16 11:05:51,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 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) [2022-11-16 11:05:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17978 transitions. [2022-11-16 11:05:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-16 11:05:51,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:51,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:51,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:05:51,682 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:51,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:51,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1888816418, now seen corresponding path program 1 times [2022-11-16 11:05:51,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:51,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052546675] [2022-11-16 11:05:51,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:51,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:05:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:05:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:05:53,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:05:53,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052546675] [2022-11-16 11:05:53,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052546675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:05:53,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:05:53,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:05:53,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885574267] [2022-11-16 11:05:53,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:05:53,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:05:53,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:05:53,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:05:53,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:05:53,260 INFO L87 Difference]: Start difference. First operand 10806 states and 17978 transitions. Second operand has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-16 11:05:55,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:05:55,438 INFO L93 Difference]: Finished difference Result 21610 states and 35954 transitions. [2022-11-16 11:05:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:05:55,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 612 [2022-11-16 11:05:55,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:05:55,447 INFO L225 Difference]: With dead ends: 21610 [2022-11-16 11:05:55,447 INFO L226 Difference]: Without dead ends: 10806 [2022-11-16 11:05:55,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:05:55,452 INFO L413 NwaCegarLoop]: 16965 mSDtfsCounter, 17398 mSDsluCounter, 16964 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17398 SdHoareTripleChecker+Valid, 33929 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:05:55,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17398 Valid, 33929 Invalid, 2020 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:05:55,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10806 states. [2022-11-16 11:05:55,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10806 to 10806. [2022-11-16 11:05:55,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 1.6637667746413698) internal successors, (17977), 10805 states have internal predecessors, (17977), 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) [2022-11-16 11:05:55,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 17977 transitions. [2022-11-16 11:05:55,573 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 17977 transitions. Word has length 612 [2022-11-16 11:05:55,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:05:55,573 INFO L495 AbstractCegarLoop]: Abstraction has 10806 states and 17977 transitions. [2022-11-16 11:05:55,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2022-11-16 11:05:55,574 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 17977 transitions. [2022-11-16 11:05:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-16 11:05:55,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:05:55,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:05:55,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:05:55,577 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:05:55,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:05:55,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1816429860, now seen corresponding path program 1 times [2022-11-16 11:05:55,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:05:55,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302305512] [2022-11-16 11:05:55,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:05:55,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat