./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7bf678f67bc088f549a4abb07f450d970cef489f8318e3fb7c3771679b9e87b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:24:47,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:24:47,838 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:24:47,843 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:24:47,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:24:47,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:24:47,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:24:47,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:24:47,874 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:24:47,874 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:24:47,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:24:47,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:24:47,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:24:47,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:24:47,878 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:24:47,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:24:47,879 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:24:47,880 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:24:47,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:24:47,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:24:47,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:24:47,882 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:24:47,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:24:47,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:24:47,884 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:24:47,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:24:47,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:24:47,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:24:47,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:24:47,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:24:47,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:24:47,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:24:47,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:24:47,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:24:47,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:24:47,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:24:47,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:24:47,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:24:47,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:24:47,889 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:24:47,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:24:47,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:24:47,890 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7bf678f67bc088f549a4abb07f450d970cef489f8318e3fb7c3771679b9e87b [2023-11-29 02:24:48,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:24:48,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:24:48,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:24:48,218 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:24:48,219 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:24:48,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-11-29 02:24:51,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:24:52,003 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:24:52,004 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-11-29 02:24:52,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/data/f201f1c28/e86351fc734542748c7940d4b1af7333/FLAG85524b46c [2023-11-29 02:24:52,035 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/data/f201f1c28/e86351fc734542748c7940d4b1af7333 [2023-11-29 02:24:52,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:24:52,039 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:24:52,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:24:52,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:24:52,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:24:52,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a37c8f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52, skipping insertion in model container [2023-11-29 02:24:52,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,113 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:24:52,383 WARN L240 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_4e7b60e4-6855-4551-8770-eee704ed04e9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7981,7994] [2023-11-29 02:24:52,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:24:52,466 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:24:52,538 WARN L240 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_4e7b60e4-6855-4551-8770-eee704ed04e9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7981,7994] [2023-11-29 02:24:52,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:24:52,592 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:24:52,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52 WrapperNode [2023-11-29 02:24:52,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:24:52,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:24:52,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:24:52,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:24:52,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,657 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 683 [2023-11-29 02:24:52,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:24:52,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:24:52,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:24:52,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:24:52,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,673 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,691 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:24:52,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:24:52,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:24:52,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:24:52,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:24:52,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (1/1) ... [2023-11-29 02:24:52,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:24:52,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:52,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:24:52,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:24:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:24:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:24:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:24:52,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:24:52,974 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:24:52,977 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:24:53,639 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:24:53,685 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:24:53,686 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 02:24:53,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:24:53 BoogieIcfgContainer [2023-11-29 02:24:53,687 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:24:53,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:24:53,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:24:53,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:24:53,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:24:52" (1/3) ... [2023-11-29 02:24:53,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227b6e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:24:53, skipping insertion in model container [2023-11-29 02:24:53,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:52" (2/3) ... [2023-11-29 02:24:53,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227b6e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:24:53, skipping insertion in model container [2023-11-29 02:24:53,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:24:53" (3/3) ... [2023-11-29 02:24:53,699 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-11-29 02:24:53,723 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:24:53,723 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:24:53,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:24:53,790 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=LoopHeads, 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;@6150e8a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:24:53,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:24:53,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 146 states have (on average 1.7671232876712328) internal successors, (258), 148 states have internal predecessors, (258), 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) [2023-11-29 02:24:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 02:24:53,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:53,808 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] [2023-11-29 02:24:53,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:53,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:53,814 INFO L85 PathProgramCache]: Analyzing trace with hash -819391528, now seen corresponding path program 1 times [2023-11-29 02:24:53,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:53,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425896229] [2023-11-29 02:24:53,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:53,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:54,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:54,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425896229] [2023-11-29 02:24:54,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425896229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:54,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:54,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:24:54,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804252391] [2023-11-29 02:24:54,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:54,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:54,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:54,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:54,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:54,533 INFO L87 Difference]: Start difference. First operand has 149 states, 146 states have (on average 1.7671232876712328) internal successors, (258), 148 states have internal predecessors, (258), 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 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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) [2023-11-29 02:24:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:55,048 INFO L93 Difference]: Finished difference Result 844 states and 1343 transitions. [2023-11-29 02:24:55,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:24:55,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 75 [2023-11-29 02:24:55,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:55,075 INFO L225 Difference]: With dead ends: 844 [2023-11-29 02:24:55,075 INFO L226 Difference]: Without dead ends: 740 [2023-11-29 02:24:55,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:24:55,085 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1628 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:55,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1832 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:24:55,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-11-29 02:24:55,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 224. [2023-11-29 02:24:55,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 1.4439461883408071) internal successors, (322), 223 states have internal predecessors, (322), 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) [2023-11-29 02:24:55,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 322 transitions. [2023-11-29 02:24:55,164 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 322 transitions. Word has length 75 [2023-11-29 02:24:55,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:55,165 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 322 transitions. [2023-11-29 02:24:55,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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) [2023-11-29 02:24:55,166 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 322 transitions. [2023-11-29 02:24:55,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:24:55,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:55,169 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] [2023-11-29 02:24:55,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:24:55,170 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:55,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:55,171 INFO L85 PathProgramCache]: Analyzing trace with hash 57964953, now seen corresponding path program 1 times [2023-11-29 02:24:55,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:55,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666876527] [2023-11-29 02:24:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:55,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:55,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:55,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666876527] [2023-11-29 02:24:55,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666876527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:55,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:55,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:24:55,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319186118] [2023-11-29 02:24:55,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:55,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:55,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:55,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:55,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:55,518 INFO L87 Difference]: Start difference. First operand 224 states and 322 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:55,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:55,740 INFO L93 Difference]: Finished difference Result 908 states and 1386 transitions. [2023-11-29 02:24:55,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:24:55,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-29 02:24:55,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:55,747 INFO L225 Difference]: With dead ends: 908 [2023-11-29 02:24:55,747 INFO L226 Difference]: Without dead ends: 790 [2023-11-29 02:24:55,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:24:55,750 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 997 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:55,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1230 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:55,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-11-29 02:24:55,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 282. [2023-11-29 02:24:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.4697508896797153) internal successors, (413), 281 states have internal predecessors, (413), 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) [2023-11-29 02:24:55,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 413 transitions. [2023-11-29 02:24:55,780 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 413 transitions. Word has length 77 [2023-11-29 02:24:55,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:55,781 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 413 transitions. [2023-11-29 02:24:55,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:55,782 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 413 transitions. [2023-11-29 02:24:55,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:24:55,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:55,784 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] [2023-11-29 02:24:55,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:24:55,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:55,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:55,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1841121089, now seen corresponding path program 1 times [2023-11-29 02:24:55,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:55,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150199060] [2023-11-29 02:24:55,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:55,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:56,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:56,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:56,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150199060] [2023-11-29 02:24:56,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150199060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:56,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:56,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:24:56,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652141607] [2023-11-29 02:24:56,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:56,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:56,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:56,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:56,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:56,025 INFO L87 Difference]: Start difference. First operand 282 states and 413 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:56,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:56,219 INFO L93 Difference]: Finished difference Result 972 states and 1486 transitions. [2023-11-29 02:24:56,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:24:56,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-29 02:24:56,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:56,227 INFO L225 Difference]: With dead ends: 972 [2023-11-29 02:24:56,227 INFO L226 Difference]: Without dead ends: 854 [2023-11-29 02:24:56,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:24:56,231 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1262 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:56,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 1040 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:56,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2023-11-29 02:24:56,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 415. [2023-11-29 02:24:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.5) internal successors, (621), 414 states have internal predecessors, (621), 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) [2023-11-29 02:24:56,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 621 transitions. [2023-11-29 02:24:56,260 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 621 transitions. Word has length 77 [2023-11-29 02:24:56,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:56,260 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 621 transitions. [2023-11-29 02:24:56,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:56,261 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 621 transitions. [2023-11-29 02:24:56,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:24:56,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:56,264 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] [2023-11-29 02:24:56,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:24:56,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:56,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:56,265 INFO L85 PathProgramCache]: Analyzing trace with hash 836086966, now seen corresponding path program 1 times [2023-11-29 02:24:56,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:56,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887026000] [2023-11-29 02:24:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:56,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:56,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:56,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:56,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887026000] [2023-11-29 02:24:56,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887026000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:56,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:56,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:24:56,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634050845] [2023-11-29 02:24:56,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:56,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:56,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:56,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:56,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:56,701 INFO L87 Difference]: Start difference. First operand 415 states and 621 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:56,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:56,967 INFO L93 Difference]: Finished difference Result 825 states and 1261 transitions. [2023-11-29 02:24:56,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:24:56,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-29 02:24:56,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:56,972 INFO L225 Difference]: With dead ends: 825 [2023-11-29 02:24:56,972 INFO L226 Difference]: Without dead ends: 533 [2023-11-29 02:24:56,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:24:56,975 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 137 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:56,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 794 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:56,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-11-29 02:24:56,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 531. [2023-11-29 02:24:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 530 states have (on average 1.5075471698113208) internal successors, (799), 530 states have internal predecessors, (799), 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) [2023-11-29 02:24:56,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 799 transitions. [2023-11-29 02:24:57,000 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 799 transitions. Word has length 77 [2023-11-29 02:24:57,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:57,000 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 799 transitions. [2023-11-29 02:24:57,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:57,001 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 799 transitions. [2023-11-29 02:24:57,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:24:57,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:57,003 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] [2023-11-29 02:24:57,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:24:57,003 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:57,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:57,004 INFO L85 PathProgramCache]: Analyzing trace with hash 629188471, now seen corresponding path program 1 times [2023-11-29 02:24:57,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:57,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767050032] [2023-11-29 02:24:57,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:57,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:57,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:57,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767050032] [2023-11-29 02:24:57,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767050032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:57,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:57,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:24:57,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098309994] [2023-11-29 02:24:57,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:57,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:24:57,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:57,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:24:57,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:57,097 INFO L87 Difference]: Start difference. First operand 531 states and 799 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:57,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:57,124 INFO L93 Difference]: Finished difference Result 943 states and 1438 transitions. [2023-11-29 02:24:57,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:24:57,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-29 02:24:57,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:57,129 INFO L225 Difference]: With dead ends: 943 [2023-11-29 02:24:57,130 INFO L226 Difference]: Without dead ends: 528 [2023-11-29 02:24:57,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:57,132 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:57,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 386 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:24:57,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2023-11-29 02:24:57,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2023-11-29 02:24:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.4971537001897532) internal successors, (789), 527 states have internal predecessors, (789), 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) [2023-11-29 02:24:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 789 transitions. [2023-11-29 02:24:57,154 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 789 transitions. Word has length 77 [2023-11-29 02:24:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:57,154 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 789 transitions. [2023-11-29 02:24:57,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 789 transitions. [2023-11-29 02:24:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:24:57,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:57,157 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] [2023-11-29 02:24:57,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:24:57,157 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:57,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:57,158 INFO L85 PathProgramCache]: Analyzing trace with hash 644914821, now seen corresponding path program 1 times [2023-11-29 02:24:57,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:57,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364589322] [2023-11-29 02:24:57,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:57,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:57,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:57,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:57,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364589322] [2023-11-29 02:24:57,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364589322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:57,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:57,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:24:57,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111798018] [2023-11-29 02:24:57,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:57,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:57,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:57,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:57,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:57,376 INFO L87 Difference]: Start difference. First operand 528 states and 789 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:57,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:57,593 INFO L93 Difference]: Finished difference Result 1139 states and 1726 transitions. [2023-11-29 02:24:57,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:24:57,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-29 02:24:57,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:57,601 INFO L225 Difference]: With dead ends: 1139 [2023-11-29 02:24:57,601 INFO L226 Difference]: Without dead ends: 1022 [2023-11-29 02:24:57,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:24:57,603 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1000 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:57,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1369 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:57,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-11-29 02:24:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 644. [2023-11-29 02:24:57,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 1.505443234836703) internal successors, (968), 643 states have internal predecessors, (968), 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) [2023-11-29 02:24:57,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 968 transitions. [2023-11-29 02:24:57,636 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 968 transitions. Word has length 77 [2023-11-29 02:24:57,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:57,636 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 968 transitions. [2023-11-29 02:24:57,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:57,637 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 968 transitions. [2023-11-29 02:24:57,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:24:57,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:57,638 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] [2023-11-29 02:24:57,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 02:24:57,639 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:57,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:57,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1731630291, now seen corresponding path program 1 times [2023-11-29 02:24:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:57,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356538084] [2023-11-29 02:24:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:57,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:57,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:57,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:57,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356538084] [2023-11-29 02:24:57,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356538084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:57,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:57,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:24:57,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737839081] [2023-11-29 02:24:57,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:57,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:57,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:57,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:57,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:57,854 INFO L87 Difference]: Start difference. First operand 644 states and 968 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:58,047 INFO L93 Difference]: Finished difference Result 1265 states and 1921 transitions. [2023-11-29 02:24:58,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:24:58,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-29 02:24:58,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:58,056 INFO L225 Difference]: With dead ends: 1265 [2023-11-29 02:24:58,056 INFO L226 Difference]: Without dead ends: 1148 [2023-11-29 02:24:58,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:24:58,058 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 1048 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:58,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 1573 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:58,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2023-11-29 02:24:58,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 775. [2023-11-29 02:24:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 774 states have (on average 1.5129198966408268) internal successors, (1171), 774 states have internal predecessors, (1171), 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) [2023-11-29 02:24:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1171 transitions. [2023-11-29 02:24:58,095 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1171 transitions. Word has length 77 [2023-11-29 02:24:58,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:58,095 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 1171 transitions. [2023-11-29 02:24:58,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:58,096 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1171 transitions. [2023-11-29 02:24:58,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 02:24:58,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:58,097 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] [2023-11-29 02:24:58,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 02:24:58,097 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:58,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:58,098 INFO L85 PathProgramCache]: Analyzing trace with hash 294962861, now seen corresponding path program 1 times [2023-11-29 02:24:58,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:58,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709060540] [2023-11-29 02:24:58,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:58,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:58,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:58,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709060540] [2023-11-29 02:24:58,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709060540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:58,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:58,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:24:58,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857356685] [2023-11-29 02:24:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:58,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:58,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:58,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:58,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:58,331 INFO L87 Difference]: Start difference. First operand 775 states and 1171 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:58,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:58,547 INFO L93 Difference]: Finished difference Result 1396 states and 2124 transitions. [2023-11-29 02:24:58,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:24:58,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-29 02:24:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:58,557 INFO L225 Difference]: With dead ends: 1396 [2023-11-29 02:24:58,557 INFO L226 Difference]: Without dead ends: 1279 [2023-11-29 02:24:58,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:24:58,559 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1053 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:58,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 1235 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:58,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2023-11-29 02:24:58,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 906. [2023-11-29 02:24:58,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 905 states have (on average 1.518232044198895) internal successors, (1374), 905 states have internal predecessors, (1374), 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) [2023-11-29 02:24:58,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1374 transitions. [2023-11-29 02:24:58,602 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1374 transitions. Word has length 77 [2023-11-29 02:24:58,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:58,603 INFO L495 AbstractCegarLoop]: Abstraction has 906 states and 1374 transitions. [2023-11-29 02:24:58,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:58,603 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1374 transitions. [2023-11-29 02:24:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 02:24:58,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:58,605 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] [2023-11-29 02:24:58,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 02:24:58,605 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:58,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:58,606 INFO L85 PathProgramCache]: Analyzing trace with hash 146982893, now seen corresponding path program 1 times [2023-11-29 02:24:58,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:58,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277909139] [2023-11-29 02:24:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:58,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:58,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:58,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277909139] [2023-11-29 02:24:58,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277909139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:58,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:58,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:24:58,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319266343] [2023-11-29 02:24:58,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:58,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:24:58,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:58,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:24:58,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:24:58,754 INFO L87 Difference]: Start difference. First operand 906 states and 1374 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-29 02:24:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:58,925 INFO L93 Difference]: Finished difference Result 1759 states and 2690 transitions. [2023-11-29 02:24:58,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:24:58,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 78 [2023-11-29 02:24:58,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:58,937 INFO L225 Difference]: With dead ends: 1759 [2023-11-29 02:24:58,938 INFO L226 Difference]: Without dead ends: 906 [2023-11-29 02:24:58,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:58,940 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 498 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:58,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 136 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:58,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-11-29 02:24:58,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2023-11-29 02:24:58,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 905 states have (on average 1.5027624309392265) internal successors, (1360), 905 states have internal predecessors, (1360), 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) [2023-11-29 02:24:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1360 transitions. [2023-11-29 02:24:58,974 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1360 transitions. Word has length 78 [2023-11-29 02:24:58,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:58,975 INFO L495 AbstractCegarLoop]: Abstraction has 906 states and 1360 transitions. [2023-11-29 02:24:58,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-29 02:24:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1360 transitions. [2023-11-29 02:24:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 02:24:58,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:58,976 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] [2023-11-29 02:24:58,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 02:24:58,977 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:58,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1376040940, now seen corresponding path program 1 times [2023-11-29 02:24:58,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:58,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806461448] [2023-11-29 02:24:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:58,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:59,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:59,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806461448] [2023-11-29 02:24:59,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806461448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:59,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:59,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:24:59,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625655242] [2023-11-29 02:24:59,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:59,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:24:59,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:59,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:24:59,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:24:59,129 INFO L87 Difference]: Start difference. First operand 906 states and 1360 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:59,301 INFO L93 Difference]: Finished difference Result 1767 states and 2672 transitions. [2023-11-29 02:24:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:24:59,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-11-29 02:24:59,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:59,308 INFO L225 Difference]: With dead ends: 1767 [2023-11-29 02:24:59,308 INFO L226 Difference]: Without dead ends: 906 [2023-11-29 02:24:59,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:59,311 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 514 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:59,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 120 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-11-29 02:24:59,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2023-11-29 02:24:59,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 905 states have (on average 1.4872928176795581) internal successors, (1346), 905 states have internal predecessors, (1346), 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) [2023-11-29 02:24:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1346 transitions. [2023-11-29 02:24:59,344 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1346 transitions. Word has length 79 [2023-11-29 02:24:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:59,344 INFO L495 AbstractCegarLoop]: Abstraction has 906 states and 1346 transitions. [2023-11-29 02:24:59,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:59,345 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1346 transitions. [2023-11-29 02:24:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 02:24:59,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:59,346 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] [2023-11-29 02:24:59,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 02:24:59,347 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:59,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash -366675763, now seen corresponding path program 1 times [2023-11-29 02:24:59,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:59,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762362260] [2023-11-29 02:24:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:59,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:59,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:59,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762362260] [2023-11-29 02:24:59,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762362260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:59,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:59,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:24:59,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713139294] [2023-11-29 02:24:59,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:59,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:24:59,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:59,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:24:59,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:24:59,484 INFO L87 Difference]: Start difference. First operand 906 states and 1346 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:59,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:59,645 INFO L93 Difference]: Finished difference Result 1763 states and 2640 transitions. [2023-11-29 02:24:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:24:59,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 02:24:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:59,652 INFO L225 Difference]: With dead ends: 1763 [2023-11-29 02:24:59,652 INFO L226 Difference]: Without dead ends: 906 [2023-11-29 02:24:59,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:59,655 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 496 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:59,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 128 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-11-29 02:24:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2023-11-29 02:24:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 905 states have (on average 1.4718232044198896) internal successors, (1332), 905 states have internal predecessors, (1332), 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) [2023-11-29 02:24:59,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1332 transitions. [2023-11-29 02:24:59,686 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1332 transitions. Word has length 80 [2023-11-29 02:24:59,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:59,687 INFO L495 AbstractCegarLoop]: Abstraction has 906 states and 1332 transitions. [2023-11-29 02:24:59,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:24:59,687 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1332 transitions. [2023-11-29 02:24:59,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 02:24:59,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:59,688 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] [2023-11-29 02:24:59,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 02:24:59,689 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:59,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:59,690 INFO L85 PathProgramCache]: Analyzing trace with hash -587442520, now seen corresponding path program 1 times [2023-11-29 02:24:59,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:59,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612207963] [2023-11-29 02:24:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:59,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:24:59,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:59,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612207963] [2023-11-29 02:24:59,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612207963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:59,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:59,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:24:59,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402718229] [2023-11-29 02:24:59,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:59,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:24:59,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:59,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:24:59,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:24:59,818 INFO L87 Difference]: Start difference. First operand 906 states and 1332 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-11-29 02:24:59,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:59,975 INFO L93 Difference]: Finished difference Result 1771 states and 2621 transitions. [2023-11-29 02:24:59,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:24:59,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2023-11-29 02:24:59,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:59,982 INFO L225 Difference]: With dead ends: 1771 [2023-11-29 02:24:59,982 INFO L226 Difference]: Without dead ends: 906 [2023-11-29 02:24:59,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:59,985 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 513 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:59,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 112 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:59,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-11-29 02:25:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2023-11-29 02:25:00,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 905 states have (on average 1.456353591160221) internal successors, (1318), 905 states have internal predecessors, (1318), 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) [2023-11-29 02:25:00,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1318 transitions. [2023-11-29 02:25:00,017 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1318 transitions. Word has length 81 [2023-11-29 02:25:00,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:00,018 INFO L495 AbstractCegarLoop]: Abstraction has 906 states and 1318 transitions. [2023-11-29 02:25:00,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-11-29 02:25:00,018 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1318 transitions. [2023-11-29 02:25:00,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 02:25:00,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:00,031 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] [2023-11-29 02:25:00,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 02:25:00,032 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:00,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:00,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1700604821, now seen corresponding path program 1 times [2023-11-29 02:25:00,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:00,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034430552] [2023-11-29 02:25:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:00,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:00,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:00,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034430552] [2023-11-29 02:25:00,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034430552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:00,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:00,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:25:00,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841474468] [2023-11-29 02:25:00,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:00,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:25:00,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:00,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:25:00,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:25:00,167 INFO L87 Difference]: Start difference. First operand 906 states and 1318 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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) [2023-11-29 02:25:00,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:00,415 INFO L93 Difference]: Finished difference Result 2591 states and 3807 transitions. [2023-11-29 02:25:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:25:00,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 82 [2023-11-29 02:25:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:00,427 INFO L225 Difference]: With dead ends: 2591 [2023-11-29 02:25:00,427 INFO L226 Difference]: Without dead ends: 1722 [2023-11-29 02:25:00,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:25:00,430 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 758 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:00,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 168 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:25:00,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2023-11-29 02:25:00,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1720. [2023-11-29 02:25:00,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.4613147178592205) internal successors, (2512), 1719 states have internal predecessors, (2512), 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) [2023-11-29 02:25:00,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2512 transitions. [2023-11-29 02:25:00,484 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2512 transitions. Word has length 82 [2023-11-29 02:25:00,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:00,484 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2512 transitions. [2023-11-29 02:25:00,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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) [2023-11-29 02:25:00,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2512 transitions. [2023-11-29 02:25:00,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 02:25:00,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:00,486 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] [2023-11-29 02:25:00,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 02:25:00,486 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:00,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:00,487 INFO L85 PathProgramCache]: Analyzing trace with hash -659470276, now seen corresponding path program 1 times [2023-11-29 02:25:00,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:00,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625988862] [2023-11-29 02:25:00,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:00,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:00,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:00,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:00,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625988862] [2023-11-29 02:25:00,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625988862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:00,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:00,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:25:00,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168018318] [2023-11-29 02:25:00,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:00,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:25:00,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:00,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:25:00,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:25:00,797 INFO L87 Difference]: Start difference. First operand 1720 states and 2512 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2023-11-29 02:25:00,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:00,859 INFO L93 Difference]: Finished difference Result 2122 states and 3067 transitions. [2023-11-29 02:25:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:25:00,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2023-11-29 02:25:00,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:00,873 INFO L225 Difference]: With dead ends: 2122 [2023-11-29 02:25:00,873 INFO L226 Difference]: Without dead ends: 2120 [2023-11-29 02:25:00,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:25:00,875 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 164 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:00,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 744 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:25:00,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2023-11-29 02:25:00,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1720. [2023-11-29 02:25:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.4531704479348457) internal successors, (2498), 1719 states have internal predecessors, (2498), 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) [2023-11-29 02:25:00,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2498 transitions. [2023-11-29 02:25:00,932 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2498 transitions. Word has length 83 [2023-11-29 02:25:00,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:00,933 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2498 transitions. [2023-11-29 02:25:00,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2023-11-29 02:25:00,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2498 transitions. [2023-11-29 02:25:00,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 02:25:00,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:00,935 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] [2023-11-29 02:25:00,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 02:25:00,935 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:00,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:00,936 INFO L85 PathProgramCache]: Analyzing trace with hash -358102445, now seen corresponding path program 1 times [2023-11-29 02:25:00,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:00,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079667706] [2023-11-29 02:25:00,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:00,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:01,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:01,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079667706] [2023-11-29 02:25:01,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079667706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:01,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:01,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:25:01,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478226988] [2023-11-29 02:25:01,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:01,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:25:01,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:01,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:25:01,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:25:01,383 INFO L87 Difference]: Start difference. First operand 1720 states and 2498 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 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) [2023-11-29 02:25:01,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:01,969 INFO L93 Difference]: Finished difference Result 4793 states and 6983 transitions. [2023-11-29 02:25:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:25:01,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 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 84 [2023-11-29 02:25:01,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:01,991 INFO L225 Difference]: With dead ends: 4793 [2023-11-29 02:25:01,991 INFO L226 Difference]: Without dead ends: 3229 [2023-11-29 02:25:01,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:25:01,995 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 1116 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:01,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 307 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:25:02,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2023-11-29 02:25:02,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 1720. [2023-11-29 02:25:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.452588714368819) internal successors, (2497), 1719 states have internal predecessors, (2497), 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) [2023-11-29 02:25:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2497 transitions. [2023-11-29 02:25:02,066 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2497 transitions. Word has length 84 [2023-11-29 02:25:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:02,067 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2497 transitions. [2023-11-29 02:25:02,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 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) [2023-11-29 02:25:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2497 transitions. [2023-11-29 02:25:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 02:25:02,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:02,069 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] [2023-11-29 02:25:02,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 02:25:02,069 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:02,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:02,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2019535681, now seen corresponding path program 1 times [2023-11-29 02:25:02,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:02,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443876936] [2023-11-29 02:25:02,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:02,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:02,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:02,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:02,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443876936] [2023-11-29 02:25:02,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443876936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:02,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:02,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:25:02,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562200356] [2023-11-29 02:25:02,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:02,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:25:02,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:02,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:25:02,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:25:02,489 INFO L87 Difference]: Start difference. First operand 1720 states and 2497 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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) [2023-11-29 02:25:03,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:03,161 INFO L93 Difference]: Finished difference Result 3605 states and 5234 transitions. [2023-11-29 02:25:03,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:25:03,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 84 [2023-11-29 02:25:03,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:03,174 INFO L225 Difference]: With dead ends: 3605 [2023-11-29 02:25:03,174 INFO L226 Difference]: Without dead ends: 2006 [2023-11-29 02:25:03,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:25:03,178 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 906 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:03,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 401 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:25:03,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2023-11-29 02:25:03,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1720. [2023-11-29 02:25:03,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.4508435136707387) internal successors, (2494), 1719 states have internal predecessors, (2494), 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) [2023-11-29 02:25:03,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2494 transitions. [2023-11-29 02:25:03,229 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2494 transitions. Word has length 84 [2023-11-29 02:25:03,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:03,229 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2494 transitions. [2023-11-29 02:25:03,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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) [2023-11-29 02:25:03,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2494 transitions. [2023-11-29 02:25:03,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 02:25:03,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:03,232 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] [2023-11-29 02:25:03,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 02:25:03,232 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:03,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:03,233 INFO L85 PathProgramCache]: Analyzing trace with hash 485836371, now seen corresponding path program 1 times [2023-11-29 02:25:03,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:03,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475753320] [2023-11-29 02:25:03,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:03,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:03,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:03,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:03,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475753320] [2023-11-29 02:25:03,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475753320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:03,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:03,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:25:03,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676916222] [2023-11-29 02:25:03,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:03,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:25:03,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:03,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:25:03,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:25:03,656 INFO L87 Difference]: Start difference. First operand 1720 states and 2494 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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) [2023-11-29 02:25:04,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:04,435 INFO L93 Difference]: Finished difference Result 4955 states and 7204 transitions. [2023-11-29 02:25:04,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:25:04,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 84 [2023-11-29 02:25:04,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:04,452 INFO L225 Difference]: With dead ends: 4955 [2023-11-29 02:25:04,452 INFO L226 Difference]: Without dead ends: 3371 [2023-11-29 02:25:04,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:25:04,456 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 1149 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:04,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 395 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:25:04,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3371 states. [2023-11-29 02:25:04,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3371 to 1720. [2023-11-29 02:25:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.4473531122745782) internal successors, (2488), 1719 states have internal predecessors, (2488), 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) [2023-11-29 02:25:04,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2488 transitions. [2023-11-29 02:25:04,500 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2488 transitions. Word has length 84 [2023-11-29 02:25:04,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:04,500 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2488 transitions. [2023-11-29 02:25:04,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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) [2023-11-29 02:25:04,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2488 transitions. [2023-11-29 02:25:04,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 02:25:04,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:04,502 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] [2023-11-29 02:25:04,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 02:25:04,502 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:04,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:04,503 INFO L85 PathProgramCache]: Analyzing trace with hash 403241574, now seen corresponding path program 1 times [2023-11-29 02:25:04,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:04,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384214442] [2023-11-29 02:25:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:04,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:04,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:04,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:04,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384214442] [2023-11-29 02:25:04,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384214442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:04,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:04,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:25:04,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144020371] [2023-11-29 02:25:04,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:04,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:25:04,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:04,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:25:04,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:25:04,869 INFO L87 Difference]: Start difference. First operand 1720 states and 2488 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 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) [2023-11-29 02:25:05,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:05,655 INFO L93 Difference]: Finished difference Result 4910 states and 7126 transitions. [2023-11-29 02:25:05,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:25:05,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 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 85 [2023-11-29 02:25:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:05,675 INFO L225 Difference]: With dead ends: 4910 [2023-11-29 02:25:05,675 INFO L226 Difference]: Without dead ends: 3356 [2023-11-29 02:25:05,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:25:05,678 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 958 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:05,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 493 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:25:05,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2023-11-29 02:25:05,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 1720. [2023-11-29 02:25:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.4421175101803374) internal successors, (2479), 1719 states have internal predecessors, (2479), 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) [2023-11-29 02:25:05,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2479 transitions. [2023-11-29 02:25:05,721 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2479 transitions. Word has length 85 [2023-11-29 02:25:05,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:05,721 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2479 transitions. [2023-11-29 02:25:05,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 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) [2023-11-29 02:25:05,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2479 transitions. [2023-11-29 02:25:05,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 02:25:05,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:05,723 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] [2023-11-29 02:25:05,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 02:25:05,723 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:05,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:05,724 INFO L85 PathProgramCache]: Analyzing trace with hash -444868516, now seen corresponding path program 1 times [2023-11-29 02:25:05,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:05,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959854969] [2023-11-29 02:25:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:05,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:06,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:06,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959854969] [2023-11-29 02:25:06,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959854969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:06,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:06,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:25:06,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586510449] [2023-11-29 02:25:06,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:06,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:25:06,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:06,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:25:06,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:25:06,163 INFO L87 Difference]: Start difference. First operand 1720 states and 2479 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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) [2023-11-29 02:25:06,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:06,931 INFO L93 Difference]: Finished difference Result 4835 states and 6997 transitions. [2023-11-29 02:25:06,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:25:06,932 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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 86 [2023-11-29 02:25:06,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:06,951 INFO L225 Difference]: With dead ends: 4835 [2023-11-29 02:25:06,951 INFO L226 Difference]: Without dead ends: 3326 [2023-11-29 02:25:06,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:25:06,954 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 770 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:06,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 507 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:25:06,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2023-11-29 02:25:06,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 1720. [2023-11-29 02:25:06,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.435718440954043) internal successors, (2468), 1719 states have internal predecessors, (2468), 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) [2023-11-29 02:25:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2468 transitions. [2023-11-29 02:25:07,005 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2468 transitions. Word has length 86 [2023-11-29 02:25:07,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:07,005 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2468 transitions. [2023-11-29 02:25:07,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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) [2023-11-29 02:25:07,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2468 transitions. [2023-11-29 02:25:07,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 02:25:07,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:07,008 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] [2023-11-29 02:25:07,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 02:25:07,008 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:07,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash 294400252, now seen corresponding path program 1 times [2023-11-29 02:25:07,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:07,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580812712] [2023-11-29 02:25:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:07,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:08,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:08,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580812712] [2023-11-29 02:25:08,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580812712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:08,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:08,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 02:25:08,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887915362] [2023-11-29 02:25:08,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:08,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:25:08,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:08,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:25:08,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:25:08,060 INFO L87 Difference]: Start difference. First operand 1720 states and 2468 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 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) [2023-11-29 02:25:09,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:09,849 INFO L93 Difference]: Finished difference Result 9898 states and 14377 transitions. [2023-11-29 02:25:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:25:09,850 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 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 87 [2023-11-29 02:25:09,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:09,864 INFO L225 Difference]: With dead ends: 9898 [2023-11-29 02:25:09,864 INFO L226 Difference]: Without dead ends: 9392 [2023-11-29 02:25:09,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2023-11-29 02:25:09,867 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1403 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:09,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 3178 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:25:09,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9392 states. [2023-11-29 02:25:09,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9392 to 1693. [2023-11-29 02:25:09,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1692 states have (on average 1.4332151300236406) internal successors, (2425), 1692 states have internal predecessors, (2425), 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) [2023-11-29 02:25:09,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2425 transitions. [2023-11-29 02:25:09,932 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2425 transitions. Word has length 87 [2023-11-29 02:25:09,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:09,932 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 2425 transitions. [2023-11-29 02:25:09,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 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) [2023-11-29 02:25:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2425 transitions. [2023-11-29 02:25:09,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 02:25:09,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:09,934 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] [2023-11-29 02:25:09,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 02:25:09,934 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:09,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:09,934 INFO L85 PathProgramCache]: Analyzing trace with hash -175919843, now seen corresponding path program 1 times [2023-11-29 02:25:09,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:09,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622221621] [2023-11-29 02:25:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:09,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:13,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:13,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622221621] [2023-11-29 02:25:13,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622221621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:13,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:13,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2023-11-29 02:25:13,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953618021] [2023-11-29 02:25:13,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:13,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 02:25:13,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:13,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 02:25:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:25:13,090 INFO L87 Difference]: Start difference. First operand 1693 states and 2425 transitions. Second operand has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 33 states have internal predecessors, (87), 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) [2023-11-29 02:25:24,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:24,382 INFO L93 Difference]: Finished difference Result 5676 states and 8200 transitions. [2023-11-29 02:25:24,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 02:25:24,383 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 33 states have internal predecessors, (87), 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 87 [2023-11-29 02:25:24,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:24,390 INFO L225 Difference]: With dead ends: 5676 [2023-11-29 02:25:24,390 INFO L226 Difference]: Without dead ends: 5443 [2023-11-29 02:25:24,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=629, Invalid=3661, Unknown=0, NotChecked=0, Total=4290 [2023-11-29 02:25:24,394 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 1804 mSDsluCounter, 12518 mSDsCounter, 0 mSdLazyCounter, 8864 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 13195 SdHoareTripleChecker+Invalid, 8866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:24,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1804 Valid, 13195 Invalid, 8866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8864 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-29 02:25:24,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5443 states. [2023-11-29 02:25:24,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5443 to 1717. [2023-11-29 02:25:24,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1716 states have (on average 1.4312354312354312) internal successors, (2456), 1716 states have internal predecessors, (2456), 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) [2023-11-29 02:25:24,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2456 transitions. [2023-11-29 02:25:24,435 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2456 transitions. Word has length 87 [2023-11-29 02:25:24,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:24,435 INFO L495 AbstractCegarLoop]: Abstraction has 1717 states and 2456 transitions. [2023-11-29 02:25:24,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 33 states have internal predecessors, (87), 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) [2023-11-29 02:25:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2456 transitions. [2023-11-29 02:25:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 02:25:24,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:24,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:24,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 02:25:24,437 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:24,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:24,438 INFO L85 PathProgramCache]: Analyzing trace with hash -674427557, now seen corresponding path program 1 times [2023-11-29 02:25:24,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:24,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387625791] [2023-11-29 02:25:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:24,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:25,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:25,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:25,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387625791] [2023-11-29 02:25:25,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387625791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:25,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:25,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:25:25,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366827627] [2023-11-29 02:25:25,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:25,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:25:25,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:25,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:25:25,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:25:25,098 INFO L87 Difference]: Start difference. First operand 1717 states and 2456 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 12 states have internal predecessors, (87), 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) [2023-11-29 02:25:26,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:26,408 INFO L93 Difference]: Finished difference Result 4215 states and 6085 transitions. [2023-11-29 02:25:26,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:25:26,409 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 12 states have internal predecessors, (87), 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 87 [2023-11-29 02:25:26,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:26,417 INFO L225 Difference]: With dead ends: 4215 [2023-11-29 02:25:26,417 INFO L226 Difference]: Without dead ends: 3689 [2023-11-29 02:25:26,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:25:26,420 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 1503 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:26,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1679 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:25:26,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2023-11-29 02:25:26,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 1660. [2023-11-29 02:25:26,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 1659 states have (on average 1.4333936106088006) internal successors, (2378), 1659 states have internal predecessors, (2378), 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) [2023-11-29 02:25:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2378 transitions. [2023-11-29 02:25:26,452 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2378 transitions. Word has length 87 [2023-11-29 02:25:26,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:26,452 INFO L495 AbstractCegarLoop]: Abstraction has 1660 states and 2378 transitions. [2023-11-29 02:25:26,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 12 states have internal predecessors, (87), 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) [2023-11-29 02:25:26,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2378 transitions. [2023-11-29 02:25:26,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 02:25:26,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:26,453 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] [2023-11-29 02:25:26,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 02:25:26,454 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:26,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:26,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1498021318, now seen corresponding path program 1 times [2023-11-29 02:25:26,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:26,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118542284] [2023-11-29 02:25:26,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:26,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:27,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:27,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118542284] [2023-11-29 02:25:27,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118542284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:27,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:27,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 02:25:27,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567342542] [2023-11-29 02:25:27,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:27,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 02:25:27,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:27,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 02:25:27,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:25:27,617 INFO L87 Difference]: Start difference. First operand 1660 states and 2378 transitions. Second operand has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 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) [2023-11-29 02:25:29,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:29,634 INFO L93 Difference]: Finished difference Result 5037 states and 7297 transitions. [2023-11-29 02:25:29,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 02:25:29,634 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 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 87 [2023-11-29 02:25:29,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:29,640 INFO L225 Difference]: With dead ends: 5037 [2023-11-29 02:25:29,640 INFO L226 Difference]: Without dead ends: 4553 [2023-11-29 02:25:29,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 02:25:29,642 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1878 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:29,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 2530 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:25:29,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2023-11-29 02:25:29,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 1660. [2023-11-29 02:25:29,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 1659 states have (on average 1.432790837854129) internal successors, (2377), 1659 states have internal predecessors, (2377), 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) [2023-11-29 02:25:29,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2377 transitions. [2023-11-29 02:25:29,677 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2377 transitions. Word has length 87 [2023-11-29 02:25:29,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:29,677 INFO L495 AbstractCegarLoop]: Abstraction has 1660 states and 2377 transitions. [2023-11-29 02:25:29,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 16 states have internal predecessors, (87), 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) [2023-11-29 02:25:29,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2377 transitions. [2023-11-29 02:25:29,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 02:25:29,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:29,678 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] [2023-11-29 02:25:29,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 02:25:29,679 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:29,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:29,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1804071413, now seen corresponding path program 1 times [2023-11-29 02:25:29,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:29,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260450035] [2023-11-29 02:25:29,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:29,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:30,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260450035] [2023-11-29 02:25:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260450035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:25:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602072096] [2023-11-29 02:25:30,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:30,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:25:30,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:25:30,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:25:30,307 INFO L87 Difference]: Start difference. First operand 1660 states and 2377 transitions. Second operand has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 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) [2023-11-29 02:25:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:31,594 INFO L93 Difference]: Finished difference Result 6695 states and 9713 transitions. [2023-11-29 02:25:31,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:25:31,595 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 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 88 [2023-11-29 02:25:31,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:31,602 INFO L225 Difference]: With dead ends: 6695 [2023-11-29 02:25:31,602 INFO L226 Difference]: Without dead ends: 6209 [2023-11-29 02:25:31,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:25:31,605 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 1108 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:31,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 2194 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:25:31,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6209 states. [2023-11-29 02:25:31,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6209 to 1628. [2023-11-29 02:25:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1627 states have (on average 1.4333128457283344) internal successors, (2332), 1627 states have internal predecessors, (2332), 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) [2023-11-29 02:25:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2332 transitions. [2023-11-29 02:25:31,650 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2332 transitions. Word has length 88 [2023-11-29 02:25:31,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:31,650 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2332 transitions. [2023-11-29 02:25:31,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 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) [2023-11-29 02:25:31,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2332 transitions. [2023-11-29 02:25:31,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 02:25:31,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:31,651 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] [2023-11-29 02:25:31,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 02:25:31,651 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:31,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:31,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1317922746, now seen corresponding path program 1 times [2023-11-29 02:25:31,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:31,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922950377] [2023-11-29 02:25:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:31,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:34,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:34,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:34,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922950377] [2023-11-29 02:25:34,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922950377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:34,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:34,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2023-11-29 02:25:34,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423107343] [2023-11-29 02:25:34,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:34,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-29 02:25:34,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:34,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-29 02:25:34,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 02:25:34,050 INFO L87 Difference]: Start difference. First operand 1628 states and 2332 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 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) [2023-11-29 02:25:41,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:41,204 INFO L93 Difference]: Finished difference Result 7815 states and 11332 transitions. [2023-11-29 02:25:41,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 02:25:41,204 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 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 88 [2023-11-29 02:25:41,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:41,209 INFO L225 Difference]: With dead ends: 7815 [2023-11-29 02:25:41,209 INFO L226 Difference]: Without dead ends: 7352 [2023-11-29 02:25:41,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=598, Invalid=3184, Unknown=0, NotChecked=0, Total=3782 [2023-11-29 02:25:41,211 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 2173 mSDsluCounter, 7117 mSDsCounter, 0 mSdLazyCounter, 5095 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 7547 SdHoareTripleChecker+Invalid, 5095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:41,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2173 Valid, 7547 Invalid, 5095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5095 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 02:25:41,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2023-11-29 02:25:41,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 1641. [2023-11-29 02:25:41,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1640 states have (on average 1.4317073170731707) internal successors, (2348), 1640 states have internal predecessors, (2348), 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) [2023-11-29 02:25:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2348 transitions. [2023-11-29 02:25:41,247 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2348 transitions. Word has length 88 [2023-11-29 02:25:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:41,248 INFO L495 AbstractCegarLoop]: Abstraction has 1641 states and 2348 transitions. [2023-11-29 02:25:41,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 32 states have internal predecessors, (88), 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) [2023-11-29 02:25:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2348 transitions. [2023-11-29 02:25:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 02:25:41,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:41,248 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] [2023-11-29 02:25:41,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 02:25:41,249 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:41,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:41,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1262373497, now seen corresponding path program 1 times [2023-11-29 02:25:41,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:41,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859919790] [2023-11-29 02:25:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:41,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:41,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:41,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:41,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859919790] [2023-11-29 02:25:41,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859919790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:41,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:41,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:25:41,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330328006] [2023-11-29 02:25:41,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:41,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:25:41,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:25:41,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:25:41,693 INFO L87 Difference]: Start difference. First operand 1641 states and 2348 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 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) [2023-11-29 02:25:42,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:42,385 INFO L93 Difference]: Finished difference Result 6599 states and 9583 transitions. [2023-11-29 02:25:42,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:25:42,385 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 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 88 [2023-11-29 02:25:42,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:42,391 INFO L225 Difference]: With dead ends: 6599 [2023-11-29 02:25:42,391 INFO L226 Difference]: Without dead ends: 6115 [2023-11-29 02:25:42,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:25:42,394 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 1068 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:42,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1225 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:25:42,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6115 states. [2023-11-29 02:25:42,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6115 to 1619. [2023-11-29 02:25:42,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1618 states have (on average 1.434487021013597) internal successors, (2321), 1618 states have internal predecessors, (2321), 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) [2023-11-29 02:25:42,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2321 transitions. [2023-11-29 02:25:42,435 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2321 transitions. Word has length 88 [2023-11-29 02:25:42,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:42,435 INFO L495 AbstractCegarLoop]: Abstraction has 1619 states and 2321 transitions. [2023-11-29 02:25:42,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 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) [2023-11-29 02:25:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2321 transitions. [2023-11-29 02:25:42,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 02:25:42,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:42,436 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] [2023-11-29 02:25:42,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 02:25:42,437 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:42,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash -251013864, now seen corresponding path program 1 times [2023-11-29 02:25:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:42,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570941011] [2023-11-29 02:25:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:42,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:43,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:43,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570941011] [2023-11-29 02:25:43,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570941011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:43,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:43,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:25:43,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035881984] [2023-11-29 02:25:43,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:43,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:25:43,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:43,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:25:43,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:25:43,083 INFO L87 Difference]: Start difference. First operand 1619 states and 2321 transitions. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 12 states have internal predecessors, (89), 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) [2023-11-29 02:25:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:44,453 INFO L93 Difference]: Finished difference Result 6591 states and 9574 transitions. [2023-11-29 02:25:44,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:25:44,454 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 12 states have internal predecessors, (89), 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 89 [2023-11-29 02:25:44,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:44,459 INFO L225 Difference]: With dead ends: 6591 [2023-11-29 02:25:44,459 INFO L226 Difference]: Without dead ends: 6127 [2023-11-29 02:25:44,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:25:44,461 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 930 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:44,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 2309 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:25:44,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6127 states. [2023-11-29 02:25:44,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 1604. [2023-11-29 02:25:44,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1603 states have (on average 1.4354335620711167) internal successors, (2301), 1603 states have internal predecessors, (2301), 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) [2023-11-29 02:25:44,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2301 transitions. [2023-11-29 02:25:44,512 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2301 transitions. Word has length 89 [2023-11-29 02:25:44,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:44,512 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2301 transitions. [2023-11-29 02:25:44,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 12 states have internal predecessors, (89), 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) [2023-11-29 02:25:44,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2301 transitions. [2023-11-29 02:25:44,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 02:25:44,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:44,514 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:44,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 02:25:44,514 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:44,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1312817850, now seen corresponding path program 1 times [2023-11-29 02:25:44,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:44,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197394447] [2023-11-29 02:25:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:44,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:44,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197394447] [2023-11-29 02:25:44,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197394447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:44,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:44,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:25:44,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955313471] [2023-11-29 02:25:44,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:44,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:25:44,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:44,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:25:44,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:25:44,685 INFO L87 Difference]: Start difference. First operand 1604 states and 2301 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:44,964 INFO L93 Difference]: Finished difference Result 6192 states and 8835 transitions. [2023-11-29 02:25:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:25:44,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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 117 [2023-11-29 02:25:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:44,969 INFO L225 Difference]: With dead ends: 6192 [2023-11-29 02:25:44,969 INFO L226 Difference]: Without dead ends: 4694 [2023-11-29 02:25:44,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:25:44,972 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1277 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:44,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 294 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:25:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2023-11-29 02:25:45,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 1904. [2023-11-29 02:25:45,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1903 states have (on average 1.4077771939043615) internal successors, (2679), 1903 states have internal predecessors, (2679), 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) [2023-11-29 02:25:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2679 transitions. [2023-11-29 02:25:45,005 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2679 transitions. Word has length 117 [2023-11-29 02:25:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:45,005 INFO L495 AbstractCegarLoop]: Abstraction has 1904 states and 2679 transitions. [2023-11-29 02:25:45,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2679 transitions. [2023-11-29 02:25:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 02:25:45,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:45,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:45,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 02:25:45,008 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:45,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:45,008 INFO L85 PathProgramCache]: Analyzing trace with hash -191399762, now seen corresponding path program 1 times [2023-11-29 02:25:45,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:45,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551223015] [2023-11-29 02:25:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:45,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:45,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:45,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551223015] [2023-11-29 02:25:45,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551223015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:45,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:45,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:25:45,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241749245] [2023-11-29 02:25:45,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:45,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:25:45,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:45,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:25:45,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:25:45,140 INFO L87 Difference]: Start difference. First operand 1904 states and 2679 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:45,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:45,502 INFO L93 Difference]: Finished difference Result 9928 states and 14027 transitions. [2023-11-29 02:25:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:25:45,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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 117 [2023-11-29 02:25:45,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:45,510 INFO L225 Difference]: With dead ends: 9928 [2023-11-29 02:25:45,510 INFO L226 Difference]: Without dead ends: 8130 [2023-11-29 02:25:45,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:25:45,514 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 1434 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:45,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 350 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:25:45,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8130 states. [2023-11-29 02:25:45,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8130 to 3960. [2023-11-29 02:25:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 3959 states have (on average 1.4160141449861077) internal successors, (5606), 3959 states have internal predecessors, (5606), 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) [2023-11-29 02:25:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 5606 transitions. [2023-11-29 02:25:45,593 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 5606 transitions. Word has length 117 [2023-11-29 02:25:45,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:45,594 INFO L495 AbstractCegarLoop]: Abstraction has 3960 states and 5606 transitions. [2023-11-29 02:25:45,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:45,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 5606 transitions. [2023-11-29 02:25:45,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 02:25:45,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:45,596 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:45,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 02:25:45,596 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:45,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:45,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1274815463, now seen corresponding path program 1 times [2023-11-29 02:25:45,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:45,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919150290] [2023-11-29 02:25:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:45,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:45,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:45,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919150290] [2023-11-29 02:25:45,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919150290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:45,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:45,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:25:45,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788184508] [2023-11-29 02:25:45,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:45,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:25:45,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:45,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:25:45,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:25:45,724 INFO L87 Difference]: Start difference. First operand 3960 states and 5606 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:46,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:46,066 INFO L93 Difference]: Finished difference Result 18488 states and 26162 transitions. [2023-11-29 02:25:46,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:25:46,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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 117 [2023-11-29 02:25:46,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:46,081 INFO L225 Difference]: With dead ends: 18488 [2023-11-29 02:25:46,081 INFO L226 Difference]: Without dead ends: 14634 [2023-11-29 02:25:46,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:25:46,088 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 1253 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:46,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 352 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:25:46,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14634 states. [2023-11-29 02:25:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14634 to 8332. [2023-11-29 02:25:46,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8332 states, 8331 states have (on average 1.419277397671348) internal successors, (11824), 8331 states have internal predecessors, (11824), 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) [2023-11-29 02:25:46,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8332 states to 8332 states and 11824 transitions. [2023-11-29 02:25:46,277 INFO L78 Accepts]: Start accepts. Automaton has 8332 states and 11824 transitions. Word has length 117 [2023-11-29 02:25:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:46,278 INFO L495 AbstractCegarLoop]: Abstraction has 8332 states and 11824 transitions. [2023-11-29 02:25:46,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 8332 states and 11824 transitions. [2023-11-29 02:25:46,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 02:25:46,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:46,281 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:46,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 02:25:46,282 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:46,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:46,282 INFO L85 PathProgramCache]: Analyzing trace with hash 609331365, now seen corresponding path program 1 times [2023-11-29 02:25:46,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:46,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152627101] [2023-11-29 02:25:46,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:46,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:46,457 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:46,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:46,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152627101] [2023-11-29 02:25:46,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152627101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:46,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:46,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:25:46,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547003173] [2023-11-29 02:25:46,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:46,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:25:46,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:46,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:25:46,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:25:46,459 INFO L87 Difference]: Start difference. First operand 8332 states and 11824 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:46,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:46,871 INFO L93 Difference]: Finished difference Result 37796 states and 53712 transitions. [2023-11-29 02:25:46,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:25:46,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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 117 [2023-11-29 02:25:46,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:46,907 INFO L225 Difference]: With dead ends: 37796 [2023-11-29 02:25:46,907 INFO L226 Difference]: Without dead ends: 29570 [2023-11-29 02:25:46,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:25:46,921 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1609 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:46,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1609 Valid, 344 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:25:46,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29570 states. [2023-11-29 02:25:47,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29570 to 17596. [2023-11-29 02:25:47,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17596 states, 17595 states have (on average 1.4201761864165956) internal successors, (24988), 17595 states have internal predecessors, (24988), 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) [2023-11-29 02:25:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17596 states to 17596 states and 24988 transitions. [2023-11-29 02:25:47,239 INFO L78 Accepts]: Start accepts. Automaton has 17596 states and 24988 transitions. Word has length 117 [2023-11-29 02:25:47,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:47,239 INFO L495 AbstractCegarLoop]: Abstraction has 17596 states and 24988 transitions. [2023-11-29 02:25:47,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:47,239 INFO L276 IsEmpty]: Start isEmpty. Operand 17596 states and 24988 transitions. [2023-11-29 02:25:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 02:25:47,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:47,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:47,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 02:25:47,242 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:47,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:47,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1719952469, now seen corresponding path program 1 times [2023-11-29 02:25:47,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:47,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604951963] [2023-11-29 02:25:47,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:47,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:47,451 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:47,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:47,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604951963] [2023-11-29 02:25:47,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604951963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:47,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:47,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:25:47,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465047854] [2023-11-29 02:25:47,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:47,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:25:47,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:47,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:25:47,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:25:47,453 INFO L87 Difference]: Start difference. First operand 17596 states and 24988 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:48,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:48,088 INFO L93 Difference]: Finished difference Result 82756 states and 117704 transitions. [2023-11-29 02:25:48,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:25:48,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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 117 [2023-11-29 02:25:48,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:48,180 INFO L225 Difference]: With dead ends: 82756 [2023-11-29 02:25:48,180 INFO L226 Difference]: Without dead ends: 65266 [2023-11-29 02:25:48,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:25:48,210 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 1756 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:48,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 346 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:25:48,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65266 states. [2023-11-29 02:25:48,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65266 to 37164. [2023-11-29 02:25:48,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37164 states, 37163 states have (on average 1.4200145305814924) internal successors, (52772), 37163 states have internal predecessors, (52772), 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) [2023-11-29 02:25:48,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37164 states to 37164 states and 52772 transitions. [2023-11-29 02:25:48,890 INFO L78 Accepts]: Start accepts. Automaton has 37164 states and 52772 transitions. Word has length 117 [2023-11-29 02:25:48,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:48,890 INFO L495 AbstractCegarLoop]: Abstraction has 37164 states and 52772 transitions. [2023-11-29 02:25:48,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 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) [2023-11-29 02:25:48,891 INFO L276 IsEmpty]: Start isEmpty. Operand 37164 states and 52772 transitions. [2023-11-29 02:25:48,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 02:25:48,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:48,904 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:48,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 02:25:48,904 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:48,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:48,905 INFO L85 PathProgramCache]: Analyzing trace with hash 653983527, now seen corresponding path program 1 times [2023-11-29 02:25:48,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:48,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133507008] [2023-11-29 02:25:48,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:48,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 02:25:49,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:49,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133507008] [2023-11-29 02:25:49,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133507008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:49,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:49,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:25:49,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508276290] [2023-11-29 02:25:49,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:49,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:25:49,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:49,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:25:49,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:49,147 INFO L87 Difference]: Start difference. First operand 37164 states and 52772 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2023-11-29 02:25:49,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:49,438 INFO L93 Difference]: Finished difference Result 71728 states and 101686 transitions. [2023-11-29 02:25:49,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:25:49,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 146 [2023-11-29 02:25:49,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:49,485 INFO L225 Difference]: With dead ends: 71728 [2023-11-29 02:25:49,485 INFO L226 Difference]: Without dead ends: 34670 [2023-11-29 02:25:49,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:49,531 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 72 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:49,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 368 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:25:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34670 states. [2023-11-29 02:25:50,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34670 to 26340. [2023-11-29 02:25:50,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26340 states, 26339 states have (on average 1.4011162154979309) internal successors, (36904), 26339 states have internal predecessors, (36904), 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) [2023-11-29 02:25:50,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26340 states to 26340 states and 36904 transitions. [2023-11-29 02:25:50,065 INFO L78 Accepts]: Start accepts. Automaton has 26340 states and 36904 transitions. Word has length 146 [2023-11-29 02:25:50,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:50,065 INFO L495 AbstractCegarLoop]: Abstraction has 26340 states and 36904 transitions. [2023-11-29 02:25:50,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2023-11-29 02:25:50,065 INFO L276 IsEmpty]: Start isEmpty. Operand 26340 states and 36904 transitions. [2023-11-29 02:25:50,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 02:25:50,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:50,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:50,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 02:25:50,074 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:50,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:50,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1867684152, now seen corresponding path program 1 times [2023-11-29 02:25:50,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:50,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236174672] [2023-11-29 02:25:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:50,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-29 02:25:50,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:50,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236174672] [2023-11-29 02:25:50,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236174672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:50,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:50,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:25:50,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504745468] [2023-11-29 02:25:50,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:50,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:25:50,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:50,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:25:50,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:50,205 INFO L87 Difference]: Start difference. First operand 26340 states and 36904 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-11-29 02:25:50,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:50,362 INFO L93 Difference]: Finished difference Result 58720 states and 82178 transitions. [2023-11-29 02:25:50,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:25:50,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 146 [2023-11-29 02:25:50,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:50,399 INFO L225 Difference]: With dead ends: 58720 [2023-11-29 02:25:50,399 INFO L226 Difference]: Without dead ends: 32486 [2023-11-29 02:25:50,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:50,507 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 79 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:50,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 367 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:25:50,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32486 states. [2023-11-29 02:25:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32486 to 30084. [2023-11-29 02:25:50,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30084 states, 30083 states have (on average 1.4030515573579763) internal successors, (42208), 30083 states have internal predecessors, (42208), 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) [2023-11-29 02:25:51,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30084 states to 30084 states and 42208 transitions. [2023-11-29 02:25:51,002 INFO L78 Accepts]: Start accepts. Automaton has 30084 states and 42208 transitions. Word has length 146 [2023-11-29 02:25:51,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:51,002 INFO L495 AbstractCegarLoop]: Abstraction has 30084 states and 42208 transitions. [2023-11-29 02:25:51,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-11-29 02:25:51,003 INFO L276 IsEmpty]: Start isEmpty. Operand 30084 states and 42208 transitions. [2023-11-29 02:25:51,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 02:25:51,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:51,015 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:51,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 02:25:51,015 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:51,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:51,016 INFO L85 PathProgramCache]: Analyzing trace with hash 860929628, now seen corresponding path program 1 times [2023-11-29 02:25:51,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:51,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371025013] [2023-11-29 02:25:51,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:51,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 02:25:51,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:51,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371025013] [2023-11-29 02:25:51,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371025013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:51,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:51,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:25:51,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766292986] [2023-11-29 02:25:51,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:51,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:25:51,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:51,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:25:51,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:51,207 INFO L87 Difference]: Start difference. First operand 30084 states and 42208 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2023-11-29 02:25:51,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:51,408 INFO L93 Difference]: Finished difference Result 57880 states and 80974 transitions. [2023-11-29 02:25:51,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:25:51,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 147 [2023-11-29 02:25:51,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:51,443 INFO L225 Difference]: With dead ends: 57880 [2023-11-29 02:25:51,444 INFO L226 Difference]: Without dead ends: 27902 [2023-11-29 02:25:51,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:51,466 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 65 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:51,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 375 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:25:51,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27902 states. [2023-11-29 02:25:51,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27902 to 27276. [2023-11-29 02:25:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27276 states, 27275 states have (on average 1.3873510540788268) internal successors, (37840), 27275 states have internal predecessors, (37840), 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) [2023-11-29 02:25:51,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27276 states to 27276 states and 37840 transitions. [2023-11-29 02:25:51,931 INFO L78 Accepts]: Start accepts. Automaton has 27276 states and 37840 transitions. Word has length 147 [2023-11-29 02:25:51,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:51,931 INFO L495 AbstractCegarLoop]: Abstraction has 27276 states and 37840 transitions. [2023-11-29 02:25:51,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2023-11-29 02:25:51,932 INFO L276 IsEmpty]: Start isEmpty. Operand 27276 states and 37840 transitions. [2023-11-29 02:25:51,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 02:25:51,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:51,940 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:51,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 02:25:51,941 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:51,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:51,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1529340650, now seen corresponding path program 1 times [2023-11-29 02:25:51,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:51,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360087551] [2023-11-29 02:25:51,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:51,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 02:25:52,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:52,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360087551] [2023-11-29 02:25:52,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360087551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:52,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:52,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:25:52,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550231158] [2023-11-29 02:25:52,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:52,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:25:52,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:52,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:25:52,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:52,065 INFO L87 Difference]: Start difference. First operand 27276 states and 37840 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2023-11-29 02:25:52,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:52,325 INFO L93 Difference]: Finished difference Result 52264 states and 72238 transitions. [2023-11-29 02:25:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:25:52,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 148 [2023-11-29 02:25:52,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:52,352 INFO L225 Difference]: With dead ends: 52264 [2023-11-29 02:25:52,352 INFO L226 Difference]: Without dead ends: 25094 [2023-11-29 02:25:52,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:52,365 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 58 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:52,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 376 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:25:52,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25094 states. [2023-11-29 02:25:52,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25094 to 24468. [2023-11-29 02:25:52,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24468 states, 24467 states have (on average 1.3680467568561736) internal successors, (33472), 24467 states have internal predecessors, (33472), 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) [2023-11-29 02:25:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24468 states to 24468 states and 33472 transitions. [2023-11-29 02:25:52,648 INFO L78 Accepts]: Start accepts. Automaton has 24468 states and 33472 transitions. Word has length 148 [2023-11-29 02:25:52,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:52,648 INFO L495 AbstractCegarLoop]: Abstraction has 24468 states and 33472 transitions. [2023-11-29 02:25:52,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2023-11-29 02:25:52,648 INFO L276 IsEmpty]: Start isEmpty. Operand 24468 states and 33472 transitions. [2023-11-29 02:25:52,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 02:25:52,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:52,655 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:52,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 02:25:52,655 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:52,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:52,656 INFO L85 PathProgramCache]: Analyzing trace with hash -904087564, now seen corresponding path program 1 times [2023-11-29 02:25:52,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:52,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815974192] [2023-11-29 02:25:52,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:52,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:52,901 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 02:25:52,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:52,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815974192] [2023-11-29 02:25:52,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815974192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:52,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:52,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:25:52,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618143763] [2023-11-29 02:25:52,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:52,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:25:52,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:52,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:25:52,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:52,904 INFO L87 Difference]: Start difference. First operand 24468 states and 33472 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2023-11-29 02:25:53,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:53,063 INFO L93 Difference]: Finished difference Result 65896 states and 89770 transitions. [2023-11-29 02:25:53,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:25:53,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 149 [2023-11-29 02:25:53,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:53,107 INFO L225 Difference]: With dead ends: 65896 [2023-11-29 02:25:53,107 INFO L226 Difference]: Without dead ends: 41534 [2023-11-29 02:25:53,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:25:53,124 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 49 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:53,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 375 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:25:53,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41534 states. [2023-11-29 02:25:53,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41534 to 38620. [2023-11-29 02:25:53,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38620 states, 38619 states have (on average 1.3530127657370725) internal successors, (52252), 38619 states have internal predecessors, (52252), 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) [2023-11-29 02:25:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38620 states to 38620 states and 52252 transitions. [2023-11-29 02:25:53,663 INFO L78 Accepts]: Start accepts. Automaton has 38620 states and 52252 transitions. Word has length 149 [2023-11-29 02:25:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:53,664 INFO L495 AbstractCegarLoop]: Abstraction has 38620 states and 52252 transitions. [2023-11-29 02:25:53,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2023-11-29 02:25:53,664 INFO L276 IsEmpty]: Start isEmpty. Operand 38620 states and 52252 transitions. [2023-11-29 02:25:53,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 02:25:53,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:53,673 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:25:53,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 02:25:53,673 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:53,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:53,674 INFO L85 PathProgramCache]: Analyzing trace with hash 639543584, now seen corresponding path program 1 times [2023-11-29 02:25:53,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:53,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177592097] [2023-11-29 02:25:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:53,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:54,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:54,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177592097] [2023-11-29 02:25:54,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177592097] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:25:54,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815855208] [2023-11-29 02:25:54,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:54,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:54,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:54,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:54,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:25:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:54,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:25:54,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:56,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:25:59,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815855208] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:25:59,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:25:59,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2023-11-29 02:25:59,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376651986] [2023-11-29 02:25:59,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:59,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 02:25:59,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:59,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 02:25:59,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:25:59,228 INFO L87 Difference]: Start difference. First operand 38620 states and 52252 transitions. Second operand has 34 states, 34 states have (on average 12.823529411764707) internal successors, (436), 33 states have internal predecessors, (436), 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) [2023-11-29 02:27:24,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:24,923 INFO L93 Difference]: Finished difference Result 1034630 states and 1366444 transitions. [2023-11-29 02:27:24,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 577 states. [2023-11-29 02:27:24,924 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 12.823529411764707) internal successors, (436), 33 states have internal predecessors, (436), 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 150 [2023-11-29 02:27:24,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:26,740 INFO L225 Difference]: With dead ends: 1034630 [2023-11-29 02:27:26,740 INFO L226 Difference]: Without dead ends: 996116 [2023-11-29 02:27:26,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 607 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164008 ImplicationChecksByTransitivity, 74.4s TimeCoverageRelationStatistics Valid=37126, Invalid=333146, Unknown=0, NotChecked=0, Total=370272 [2023-11-29 02:27:26,882 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 16177 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 7502 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16177 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 7569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 7502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:26,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16177 Valid, 3811 Invalid, 7569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 7502 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-11-29 02:27:27,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996116 states. [2023-11-29 02:27:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996116 to 218882. [2023-11-29 02:27:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218882 states, 218881 states have (on average 1.3482485917005131) internal successors, (295106), 218881 states have internal predecessors, (295106), 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) [2023-11-29 02:27:33,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218882 states to 218882 states and 295106 transitions. [2023-11-29 02:27:33,917 INFO L78 Accepts]: Start accepts. Automaton has 218882 states and 295106 transitions. Word has length 150 [2023-11-29 02:27:33,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:33,917 INFO L495 AbstractCegarLoop]: Abstraction has 218882 states and 295106 transitions. [2023-11-29 02:27:33,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 12.823529411764707) internal successors, (436), 33 states have internal predecessors, (436), 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) [2023-11-29 02:27:33,918 INFO L276 IsEmpty]: Start isEmpty. Operand 218882 states and 295106 transitions. [2023-11-29 02:27:33,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 02:27:33,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:33,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:33,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 02:27:34,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 02:27:34,155 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:34,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:34,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1072427250, now seen corresponding path program 1 times [2023-11-29 02:27:34,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:34,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164643693] [2023-11-29 02:27:34,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:34,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:27:34,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:34,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164643693] [2023-11-29 02:27:34,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164643693] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:34,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146731736] [2023-11-29 02:27:34,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:34,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:34,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:34,561 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:34,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:27:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:34,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:27:34,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:35,666 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:27:35,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:37,399 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:27:37,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146731736] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:37,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:37,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2023-11-29 02:27:37,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749720200] [2023-11-29 02:27:37,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:37,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 02:27:37,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:37,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 02:27:37,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:27:37,401 INFO L87 Difference]: Start difference. First operand 218882 states and 295106 transitions. Second operand has 25 states, 25 states have (on average 14.72) internal successors, (368), 24 states have internal predecessors, (368), 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) [2023-11-29 02:27:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:42,856 INFO L93 Difference]: Finished difference Result 998082 states and 1330680 transitions. [2023-11-29 02:27:42,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-29 02:27:42,857 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 14.72) internal successors, (368), 24 states have internal predecessors, (368), 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 150 [2023-11-29 02:27:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:43,857 INFO L225 Difference]: With dead ends: 998082 [2023-11-29 02:27:43,857 INFO L226 Difference]: Without dead ends: 779362 [2023-11-29 02:27:44,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 284 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1241 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1232, Invalid=3880, Unknown=0, NotChecked=0, Total=5112 [2023-11-29 02:27:44,038 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 3344 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3344 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:44,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3344 Valid, 1790 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 02:27:44,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779362 states. [2023-11-29 02:27:49,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779362 to 372834. [2023-11-29 02:27:49,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372834 states, 372833 states have (on average 1.3425957466211413) internal successors, (500564), 372833 states have internal predecessors, (500564), 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) [2023-11-29 02:27:50,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372834 states to 372834 states and 500564 transitions. [2023-11-29 02:27:50,648 INFO L78 Accepts]: Start accepts. Automaton has 372834 states and 500564 transitions. Word has length 150 [2023-11-29 02:27:50,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:50,648 INFO L495 AbstractCegarLoop]: Abstraction has 372834 states and 500564 transitions. [2023-11-29 02:27:50,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 14.72) internal successors, (368), 24 states have internal predecessors, (368), 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) [2023-11-29 02:27:50,648 INFO L276 IsEmpty]: Start isEmpty. Operand 372834 states and 500564 transitions. [2023-11-29 02:27:50,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 02:27:50,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:50,686 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:50,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:27:50,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 02:27:50,887 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:50,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:50,887 INFO L85 PathProgramCache]: Analyzing trace with hash -592282195, now seen corresponding path program 1 times [2023-11-29 02:27:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:50,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781389219] [2023-11-29 02:27:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:51,013 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:27:51,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:51,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781389219] [2023-11-29 02:27:51,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781389219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:27:51,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:27:51,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:27:51,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795036376] [2023-11-29 02:27:51,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:27:51,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:27:51,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:51,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:27:51,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:27:51,015 INFO L87 Difference]: Start difference. First operand 372834 states and 500564 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-11-29 02:27:53,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:53,174 INFO L93 Difference]: Finished difference Result 720119 states and 964093 transitions. [2023-11-29 02:27:53,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:27:53,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2023-11-29 02:27:53,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:53,554 INFO L225 Difference]: With dead ends: 720119 [2023-11-29 02:27:53,554 INFO L226 Difference]: Without dead ends: 347447 [2023-11-29 02:27:53,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:27:53,671 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 80 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:53,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 351 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:27:53,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347447 states. [2023-11-29 02:27:57,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347447 to 342180. [2023-11-29 02:27:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342180 states, 342179 states have (on average 1.3131840352564008) internal successors, (449344), 342179 states have internal predecessors, (449344), 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) [2023-11-29 02:27:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342180 states to 342180 states and 449344 transitions. [2023-11-29 02:27:57,798 INFO L78 Accepts]: Start accepts. Automaton has 342180 states and 449344 transitions. Word has length 151 [2023-11-29 02:27:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:57,799 INFO L495 AbstractCegarLoop]: Abstraction has 342180 states and 449344 transitions. [2023-11-29 02:27:57,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-11-29 02:27:57,799 INFO L276 IsEmpty]: Start isEmpty. Operand 342180 states and 449344 transitions. [2023-11-29 02:27:57,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 02:27:57,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:57,811 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:57,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-29 02:27:57,811 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:57,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:57,811 INFO L85 PathProgramCache]: Analyzing trace with hash 681894893, now seen corresponding path program 1 times [2023-11-29 02:27:57,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:57,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731189116] [2023-11-29 02:27:57,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:57,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:58,698 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:27:58,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:58,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731189116] [2023-11-29 02:27:58,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731189116] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:58,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916903461] [2023-11-29 02:27:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:58,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:58,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:58,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:58,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:27:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:58,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 02:27:58,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:28:00,196 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:28:00,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:28:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:28:03,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916903461] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:28:03,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:28:03,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 19] total 47 [2023-11-29 02:28:03,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797774266] [2023-11-29 02:28:03,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:28:03,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-11-29 02:28:03,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:28:03,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-11-29 02:28:03,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2009, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 02:28:03,820 INFO L87 Difference]: Start difference. First operand 342180 states and 449344 transitions. Second operand has 47 states, 47 states have (on average 9.0) internal successors, (423), 47 states have internal predecessors, (423), 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) [2023-11-29 02:35:14,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:35:14,915 INFO L93 Difference]: Finished difference Result 5883649 states and 7572920 transitions. [2023-11-29 02:35:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1940 states. [2023-11-29 02:35:14,916 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 9.0) internal successors, (423), 47 states have internal predecessors, (423), 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 151 [2023-11-29 02:35:14,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:35:22,871 INFO L225 Difference]: With dead ends: 5883649 [2023-11-29 02:35:22,871 INFO L226 Difference]: Without dead ends: 5541631 [2023-11-29 02:35:23,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2250 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 1983 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926061 ImplicationChecksByTransitivity, 375.1s TimeCoverageRelationStatistics Valid=210134, Invalid=3728106, Unknown=0, NotChecked=0, Total=3938240 [2023-11-29 02:35:23,941 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 37987 mSDsluCounter, 20490 mSDsCounter, 0 mSdLazyCounter, 27847 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37987 SdHoareTripleChecker+Valid, 21462 SdHoareTripleChecker+Invalid, 28326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 27847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:35:23,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37987 Valid, 21462 Invalid, 28326 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [479 Valid, 27847 Invalid, 0 Unknown, 0 Unchecked, 32.6s Time] [2023-11-29 02:35:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5541631 states. [2023-11-29 02:36:02,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5541631 to 1516621. [2023-11-29 02:36:03,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516621 states, 1516620 states have (on average 1.3135386583323443) internal successors, (1992139), 1516620 states have internal predecessors, (1992139), 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) [2023-11-29 02:36:07,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516621 states to 1516621 states and 1992139 transitions. [2023-11-29 02:36:07,707 INFO L78 Accepts]: Start accepts. Automaton has 1516621 states and 1992139 transitions. Word has length 151 [2023-11-29 02:36:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:36:07,708 INFO L495 AbstractCegarLoop]: Abstraction has 1516621 states and 1992139 transitions. [2023-11-29 02:36:07,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 9.0) internal successors, (423), 47 states have internal predecessors, (423), 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) [2023-11-29 02:36:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1516621 states and 1992139 transitions. [2023-11-29 02:36:07,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 02:36:07,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:36:07,785 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:36:07,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:36:07,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 02:36:07,985 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:36:07,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:36:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1016779995, now seen corresponding path program 1 times [2023-11-29 02:36:07,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:36:07,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362557715] [2023-11-29 02:36:07,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:36:07,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:36:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:36:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:36:08,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:36:08,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362557715] [2023-11-29 02:36:08,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362557715] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:36:08,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84592591] [2023-11-29 02:36:08,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:36:08,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:36:08,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:36:08,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:36:08,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b60e4-6855-4551-8770-eee704ed04e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:36:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:36:08,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:36:08,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:36:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:36:09,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:36:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:36:11,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84592591] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:36:11,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:36:11,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 31 [2023-11-29 02:36:11,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170775748] [2023-11-29 02:36:11,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:36:11,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-29 02:36:11,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:36:11,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-29 02:36:11,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=845, Unknown=0, NotChecked=0, Total=992 [2023-11-29 02:36:11,107 INFO L87 Difference]: Start difference. First operand 1516621 states and 1992139 transitions. Second operand has 32 states, 32 states have (on average 13.4375) internal successors, (430), 31 states have internal predecessors, (430), 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)