./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX --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 52f505c2033e0aec4a19441e3af9fb9949b71da33ecc0d15d8cd0b9d7a123c92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:40:37,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:40:37,843 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:40:37,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:40:37,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:40:37,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:40:37,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:40:37,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:40:37,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:40:37,891 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:40:37,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:40:37,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:40:37,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:40:37,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:40:37,899 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:40:37,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:40:37,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:40:37,901 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:40:37,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:40:37,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:40:37,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:40:37,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:40:37,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:40:37,908 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:40:37,908 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:40:37,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:40:37,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:40:37,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:40:37,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:40:37,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:40:37,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:40:37,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:40:37,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:40:37,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:40:37,913 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:40:37,913 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:40:37,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:40:37,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:40:37,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:40:37,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:40:37,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:40:37,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:40:37,918 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_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f505c2033e0aec4a19441e3af9fb9949b71da33ecc0d15d8cd0b9d7a123c92 [2024-11-08 17:40:38,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:40:38,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:40:38,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:40:38,269 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:40:38,270 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:40:38,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-08 17:40:40,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:40:40,789 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:40:40,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 17:40:40,807 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/data/99b38a44d/1107d0329f754c5c8d192eb0e1b4e286/FLAG858ec90e7 [2024-11-08 17:40:41,102 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/data/99b38a44d/1107d0329f754c5c8d192eb0e1b4e286 [2024-11-08 17:40:41,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:40:41,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:40:41,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:40:41,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:40:41,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:40:41,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:41,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45573777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41, skipping insertion in model container [2024-11-08 17:40:41,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:41,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:40:41,558 WARN L250 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_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7836,7849] [2024-11-08 17:40:41,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:40:41,673 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:40:41,763 WARN L250 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_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7836,7849] [2024-11-08 17:40:41,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:40:41,880 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:40:41,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41 WrapperNode [2024-11-08 17:40:41,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:40:41,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:40:41,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:40:41,884 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:40:41,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:41,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:41,960 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 673 [2024-11-08 17:40:41,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:40:41,961 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:40:41,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:40:41,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:40:41,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:41,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:41,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:42,009 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]. [2024-11-08 17:40:42,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:42,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:42,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:42,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:42,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:42,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:42,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:40:42,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:40:42,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:40:42,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:40:42,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (1/1) ... [2024-11-08 17:40:42,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:40:42,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:40:42,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:40:42,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:40:42,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:40:42,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:40:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:40:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:40:42,407 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:40:42,410 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:40:43,319 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-08 17:40:43,319 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:40:43,337 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:40:43,338 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:40:43,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:40:43 BoogieIcfgContainer [2024-11-08 17:40:43,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:40:43,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:40:43,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:40:43,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:40:43,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:40:41" (1/3) ... [2024-11-08 17:40:43,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c8d3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:40:43, skipping insertion in model container [2024-11-08 17:40:43,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:40:41" (2/3) ... [2024-11-08 17:40:43,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c8d3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:40:43, skipping insertion in model container [2024-11-08 17:40:43,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:40:43" (3/3) ... [2024-11-08 17:40:43,352 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 17:40:43,379 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:40:43,379 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:40:43,483 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:40:43,490 INFO L333 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, 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;@71c1832f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:40:43,491 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:40:43,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 147 states have (on average 1.7551020408163265) 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) [2024-11-08 17:40:43,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 17:40:43,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:43,514 INFO L215 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] [2024-11-08 17:40:43,515 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:43,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:43,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1577999170, now seen corresponding path program 1 times [2024-11-08 17:40:43,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:43,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598341334] [2024-11-08 17:40:43,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:43,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:44,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:44,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598341334] [2024-11-08 17:40:44,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598341334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:44,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:44,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:40:44,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207415957] [2024-11-08 17:40:44,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:44,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:40:44,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:44,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:40:44,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:44,716 INFO L87 Difference]: Start difference. First operand has 149 states, 147 states have (on average 1.7551020408163265) 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) [2024-11-08 17:40:45,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:45,334 INFO L93 Difference]: Finished difference Result 832 states and 1345 transitions. [2024-11-08 17:40:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:40:45,337 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 [2024-11-08 17:40:45,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:45,367 INFO L225 Difference]: With dead ends: 832 [2024-11-08 17:40:45,370 INFO L226 Difference]: Without dead ends: 750 [2024-11-08 17:40:45,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:40:45,381 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 1621 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:45,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 1874 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:40:45,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-08 17:40:45,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 226. [2024-11-08 17:40:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4622222222222223) internal successors, (329), 225 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:45,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 329 transitions. [2024-11-08 17:40:45,496 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 329 transitions. Word has length 75 [2024-11-08 17:40:45,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:45,500 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 329 transitions. [2024-11-08 17:40:45,501 INFO L472 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) [2024-11-08 17:40:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 329 transitions. [2024-11-08 17:40:45,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:40:45,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:45,507 INFO L215 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] [2024-11-08 17:40:45,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:40:45,508 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:45,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:45,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1882204162, now seen corresponding path program 1 times [2024-11-08 17:40:45,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:45,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217034497] [2024-11-08 17:40:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:45,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:45,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:45,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217034497] [2024-11-08 17:40:45,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217034497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:45,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:45,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:40:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584360380] [2024-11-08 17:40:45,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:45,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:40:45,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:45,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:40:45,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:45,983 INFO L87 Difference]: Start difference. First operand 226 states and 329 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) [2024-11-08 17:40:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:46,241 INFO L93 Difference]: Finished difference Result 921 states and 1431 transitions. [2024-11-08 17:40:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:40:46,242 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 [2024-11-08 17:40:46,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:46,246 INFO L225 Difference]: With dead ends: 921 [2024-11-08 17:40:46,247 INFO L226 Difference]: Without dead ends: 801 [2024-11-08 17:40:46,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:40:46,251 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 1029 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:46,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1153 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:40:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-11-08 17:40:46,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 355. [2024-11-08 17:40:46,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.5112994350282485) internal successors, (535), 354 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:46,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 535 transitions. [2024-11-08 17:40:46,300 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 535 transitions. Word has length 77 [2024-11-08 17:40:46,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:46,301 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 535 transitions. [2024-11-08 17:40:46,303 INFO L472 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) [2024-11-08 17:40:46,304 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 535 transitions. [2024-11-08 17:40:46,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:40:46,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:46,308 INFO L215 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] [2024-11-08 17:40:46,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:40:46,309 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:46,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:46,312 INFO L85 PathProgramCache]: Analyzing trace with hash -120044916, now seen corresponding path program 1 times [2024-11-08 17:40:46,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:46,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500080257] [2024-11-08 17:40:46,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:46,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:46,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:46,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500080257] [2024-11-08 17:40:46,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500080257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:46,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:46,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:40:46,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949463412] [2024-11-08 17:40:46,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:46,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:40:46,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:46,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:40:46,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:46,777 INFO L87 Difference]: Start difference. First operand 355 states and 535 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) [2024-11-08 17:40:47,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:47,047 INFO L93 Difference]: Finished difference Result 1045 states and 1629 transitions. [2024-11-08 17:40:47,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:40:47,048 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 [2024-11-08 17:40:47,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:47,052 INFO L225 Difference]: With dead ends: 1045 [2024-11-08 17:40:47,052 INFO L226 Difference]: Without dead ends: 925 [2024-11-08 17:40:47,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:40:47,059 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 1292 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:47,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 1070 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:40:47,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-08 17:40:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 538. [2024-11-08 17:40:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5400372439478585) internal successors, (827), 537 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:47,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 827 transitions. [2024-11-08 17:40:47,104 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 827 transitions. Word has length 77 [2024-11-08 17:40:47,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:47,109 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 827 transitions. [2024-11-08 17:40:47,110 INFO L472 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) [2024-11-08 17:40:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 827 transitions. [2024-11-08 17:40:47,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:40:47,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:47,112 INFO L215 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] [2024-11-08 17:40:47,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:40:47,112 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:47,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1696566079, now seen corresponding path program 1 times [2024-11-08 17:40:47,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:47,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659617657] [2024-11-08 17:40:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:47,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:47,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:47,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659617657] [2024-11-08 17:40:47,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659617657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:47,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:47,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:40:47,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158275009] [2024-11-08 17:40:47,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:47,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:40:47,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:47,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:40:47,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:47,699 INFO L87 Difference]: Start difference. First operand 538 states and 827 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) [2024-11-08 17:40:48,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:48,009 INFO L93 Difference]: Finished difference Result 955 states and 1491 transitions. [2024-11-08 17:40:48,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:40:48,010 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 [2024-11-08 17:40:48,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:48,013 INFO L225 Difference]: With dead ends: 955 [2024-11-08 17:40:48,014 INFO L226 Difference]: Without dead ends: 540 [2024-11-08 17:40:48,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:40:48,020 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 604 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:48,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 682 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:40:48,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-08 17:40:48,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 538. [2024-11-08 17:40:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5325884543761639) internal successors, (823), 537 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:48,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 823 transitions. [2024-11-08 17:40:48,041 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 823 transitions. Word has length 77 [2024-11-08 17:40:48,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:48,042 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 823 transitions. [2024-11-08 17:40:48,042 INFO L472 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) [2024-11-08 17:40:48,044 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 823 transitions. [2024-11-08 17:40:48,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:40:48,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:48,048 INFO L215 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] [2024-11-08 17:40:48,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:40:48,049 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:48,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:48,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1904417886, now seen corresponding path program 1 times [2024-11-08 17:40:48,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:48,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299242738] [2024-11-08 17:40:48,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:48,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:48,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:48,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299242738] [2024-11-08 17:40:48,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299242738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:48,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:48,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:40:48,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998114796] [2024-11-08 17:40:48,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:48,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:40:48,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:48,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:40:48,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:40:48,160 INFO L87 Difference]: Start difference. First operand 538 states and 823 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) [2024-11-08 17:40:48,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:48,217 INFO L93 Difference]: Finished difference Result 1323 states and 2066 transitions. [2024-11-08 17:40:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:40:48,218 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 [2024-11-08 17:40:48,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:48,222 INFO L225 Difference]: With dead ends: 1323 [2024-11-08 17:40:48,222 INFO L226 Difference]: Without dead ends: 908 [2024-11-08 17:40:48,223 INFO L431 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 [2024-11-08 17:40:48,224 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 83 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:48,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 467 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:40:48,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2024-11-08 17:40:48,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 892. [2024-11-08 17:40:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 891 states have (on average 1.5387205387205387) internal successors, (1371), 891 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:48,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1371 transitions. [2024-11-08 17:40:48,251 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1371 transitions. Word has length 77 [2024-11-08 17:40:48,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:48,252 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1371 transitions. [2024-11-08 17:40:48,252 INFO L472 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) [2024-11-08 17:40:48,252 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1371 transitions. [2024-11-08 17:40:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:40:48,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:48,254 INFO L215 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] [2024-11-08 17:40:48,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:40:48,255 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:48,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:48,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1745860562, now seen corresponding path program 1 times [2024-11-08 17:40:48,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:48,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69640235] [2024-11-08 17:40:48,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:48,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:48,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:48,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69640235] [2024-11-08 17:40:48,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69640235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:48,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:48,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:40:48,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992607095] [2024-11-08 17:40:48,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:48,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:40:48,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:40:48,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:48,539 INFO L87 Difference]: Start difference. First operand 892 states and 1371 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) [2024-11-08 17:40:48,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:48,826 INFO L93 Difference]: Finished difference Result 2023 states and 3143 transitions. [2024-11-08 17:40:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:40:48,827 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 [2024-11-08 17:40:48,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:48,835 INFO L225 Difference]: With dead ends: 2023 [2024-11-08 17:40:48,835 INFO L226 Difference]: Without dead ends: 1802 [2024-11-08 17:40:48,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:40:48,837 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 1036 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:48,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 1397 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:40:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2024-11-08 17:40:48,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1112. [2024-11-08 17:40:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 1.5445544554455446) internal successors, (1716), 1111 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1716 transitions. [2024-11-08 17:40:48,891 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1716 transitions. Word has length 77 [2024-11-08 17:40:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:48,892 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1716 transitions. [2024-11-08 17:40:48,892 INFO L472 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) [2024-11-08 17:40:48,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1716 transitions. [2024-11-08 17:40:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:40:48,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:48,894 INFO L215 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] [2024-11-08 17:40:48,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:40:48,895 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:48,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1856951880, now seen corresponding path program 1 times [2024-11-08 17:40:48,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:48,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611111474] [2024-11-08 17:40:48,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:48,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:49,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:49,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611111474] [2024-11-08 17:40:49,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611111474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:49,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:49,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:40:49,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667563718] [2024-11-08 17:40:49,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:49,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:40:49,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:49,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:40:49,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:49,187 INFO L87 Difference]: Start difference. First operand 1112 states and 1716 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) [2024-11-08 17:40:49,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:49,450 INFO L93 Difference]: Finished difference Result 2253 states and 3504 transitions. [2024-11-08 17:40:49,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:40:49,451 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 [2024-11-08 17:40:49,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:49,459 INFO L225 Difference]: With dead ends: 2253 [2024-11-08 17:40:49,459 INFO L226 Difference]: Without dead ends: 2032 [2024-11-08 17:40:49,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:40:49,462 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 1082 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:49,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 1607 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:40:49,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2024-11-08 17:40:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 1347. [2024-11-08 17:40:49,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1346 states have (on average 1.549034175334324) internal successors, (2085), 1346 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:49,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 2085 transitions. [2024-11-08 17:40:49,511 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 2085 transitions. Word has length 77 [2024-11-08 17:40:49,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:49,512 INFO L471 AbstractCegarLoop]: Abstraction has 1347 states and 2085 transitions. [2024-11-08 17:40:49,512 INFO L472 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) [2024-11-08 17:40:49,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 2085 transitions. [2024-11-08 17:40:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 17:40:49,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:49,514 INFO L215 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] [2024-11-08 17:40:49,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:40:49,514 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:49,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:49,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1646651862, now seen corresponding path program 1 times [2024-11-08 17:40:49,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:49,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938638718] [2024-11-08 17:40:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:49,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:49,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:49,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:49,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938638718] [2024-11-08 17:40:49,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938638718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:49,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:49,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:40:49,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515928944] [2024-11-08 17:40:49,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:49,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:40:49,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:49,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:40:49,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:49,739 INFO L87 Difference]: Start difference. First operand 1347 states and 2085 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) [2024-11-08 17:40:49,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:49,977 INFO L93 Difference]: Finished difference Result 2488 states and 3873 transitions. [2024-11-08 17:40:49,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:40:49,978 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 [2024-11-08 17:40:49,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:49,985 INFO L225 Difference]: With dead ends: 2488 [2024-11-08 17:40:49,985 INFO L226 Difference]: Without dead ends: 2267 [2024-11-08 17:40:49,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:40:49,988 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1089 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:49,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1251 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:40:49,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2024-11-08 17:40:50,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 1582. [2024-11-08 17:40:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 1.5521821631878558) internal successors, (2454), 1581 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2454 transitions. [2024-11-08 17:40:50,046 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2454 transitions. Word has length 77 [2024-11-08 17:40:50,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:50,046 INFO L471 AbstractCegarLoop]: Abstraction has 1582 states and 2454 transitions. [2024-11-08 17:40:50,046 INFO L472 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) [2024-11-08 17:40:50,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2454 transitions. [2024-11-08 17:40:50,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 17:40:50,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:50,048 INFO L215 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] [2024-11-08 17:40:50,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:40:50,048 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:50,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:50,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1055850175, now seen corresponding path program 1 times [2024-11-08 17:40:50,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:50,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701285555] [2024-11-08 17:40:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:50,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:50,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701285555] [2024-11-08 17:40:50,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701285555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:50,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:50,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:40:50,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868485329] [2024-11-08 17:40:50,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:50,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:40:50,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:50,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:40:50,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:40:50,193 INFO L87 Difference]: Start difference. First operand 1582 states and 2454 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) [2024-11-08 17:40:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:50,489 INFO L93 Difference]: Finished difference Result 4619 states and 7211 transitions. [2024-11-08 17:40:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:40:50,490 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 [2024-11-08 17:40:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:50,500 INFO L225 Difference]: With dead ends: 4619 [2024-11-08 17:40:50,500 INFO L226 Difference]: Without dead ends: 3074 [2024-11-08 17:40:50,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:50,504 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 813 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:50,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 180 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:40:50,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2024-11-08 17:40:50,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 3072. [2024-11-08 17:40:50,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3071 states have (on average 1.552263106479974) internal successors, (4767), 3071 states have internal predecessors, (4767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:50,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4767 transitions. [2024-11-08 17:40:50,578 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4767 transitions. Word has length 78 [2024-11-08 17:40:50,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:50,579 INFO L471 AbstractCegarLoop]: Abstraction has 3072 states and 4767 transitions. [2024-11-08 17:40:50,579 INFO L472 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) [2024-11-08 17:40:50,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4767 transitions. [2024-11-08 17:40:50,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 17:40:50,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:50,581 INFO L215 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] [2024-11-08 17:40:50,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:40:50,581 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:50,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2025338944, now seen corresponding path program 1 times [2024-11-08 17:40:50,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:50,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231464528] [2024-11-08 17:40:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:50,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:50,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:50,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:50,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231464528] [2024-11-08 17:40:50,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231464528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:50,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:50,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:40:50,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11533900] [2024-11-08 17:40:50,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:50,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:40:50,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:50,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:40:50,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:40:50,797 INFO L87 Difference]: Start difference. First operand 3072 states and 4767 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) [2024-11-08 17:40:51,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:51,046 INFO L93 Difference]: Finished difference Result 6091 states and 9477 transitions. [2024-11-08 17:40:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:40:51,046 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 [2024-11-08 17:40:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:51,056 INFO L225 Difference]: With dead ends: 6091 [2024-11-08 17:40:51,057 INFO L226 Difference]: Without dead ends: 3072 [2024-11-08 17:40:51,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:51,061 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 507 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:51,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 143 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:40:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2024-11-08 17:40:51,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3072. [2024-11-08 17:40:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3071 states have (on average 1.5350048844024748) internal successors, (4714), 3071 states have internal predecessors, (4714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4714 transitions. [2024-11-08 17:40:51,128 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4714 transitions. Word has length 79 [2024-11-08 17:40:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:51,129 INFO L471 AbstractCegarLoop]: Abstraction has 3072 states and 4714 transitions. [2024-11-08 17:40:51,129 INFO L472 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) [2024-11-08 17:40:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4714 transitions. [2024-11-08 17:40:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 17:40:51,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:51,131 INFO L215 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] [2024-11-08 17:40:51,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:40:51,131 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:51,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:51,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1784244513, now seen corresponding path program 1 times [2024-11-08 17:40:51,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:51,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583400876] [2024-11-08 17:40:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:51,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:51,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583400876] [2024-11-08 17:40:51,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583400876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:51,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:51,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:40:51,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081764976] [2024-11-08 17:40:51,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:51,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:40:51,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:51,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:40:51,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:40:51,271 INFO L87 Difference]: Start difference. First operand 3072 states and 4714 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) [2024-11-08 17:40:51,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:51,443 INFO L93 Difference]: Finished difference Result 6095 states and 9376 transitions. [2024-11-08 17:40:51,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:40:51,444 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 [2024-11-08 17:40:51,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:51,452 INFO L225 Difference]: With dead ends: 6095 [2024-11-08 17:40:51,452 INFO L226 Difference]: Without dead ends: 3072 [2024-11-08 17:40:51,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:51,456 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 512 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:51,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 135 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:40:51,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2024-11-08 17:40:51,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3072. [2024-11-08 17:40:51,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3071 states have (on average 1.5177466623249756) internal successors, (4661), 3071 states have internal predecessors, (4661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4661 transitions. [2024-11-08 17:40:51,558 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4661 transitions. Word has length 80 [2024-11-08 17:40:51,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:51,558 INFO L471 AbstractCegarLoop]: Abstraction has 3072 states and 4661 transitions. [2024-11-08 17:40:51,558 INFO L472 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) [2024-11-08 17:40:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4661 transitions. [2024-11-08 17:40:51,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 17:40:51,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:51,560 INFO L215 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] [2024-11-08 17:40:51,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:40:51,561 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:51,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:51,561 INFO L85 PathProgramCache]: Analyzing trace with hash -511041836, now seen corresponding path program 1 times [2024-11-08 17:40:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:51,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307099897] [2024-11-08 17:40:51,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:51,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:51,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:51,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307099897] [2024-11-08 17:40:51,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307099897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:51,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:51,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:40:51,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513503787] [2024-11-08 17:40:51,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:51,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:40:51,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:51,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:40:51,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:40:51,688 INFO L87 Difference]: Start difference. First operand 3072 states and 4661 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) [2024-11-08 17:40:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:51,873 INFO L93 Difference]: Finished difference Result 6103 states and 9280 transitions. [2024-11-08 17:40:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:40:51,874 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 [2024-11-08 17:40:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:51,883 INFO L225 Difference]: With dead ends: 6103 [2024-11-08 17:40:51,884 INFO L226 Difference]: Without dead ends: 3072 [2024-11-08 17:40:51,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:51,887 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 528 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:51,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 119 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:40:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2024-11-08 17:40:51,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3072. [2024-11-08 17:40:51,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3071 states have (on average 1.5004884402474763) internal successors, (4608), 3071 states have internal predecessors, (4608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4608 transitions. [2024-11-08 17:40:51,956 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4608 transitions. Word has length 81 [2024-11-08 17:40:51,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:51,957 INFO L471 AbstractCegarLoop]: Abstraction has 3072 states and 4608 transitions. [2024-11-08 17:40:51,957 INFO L472 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) [2024-11-08 17:40:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4608 transitions. [2024-11-08 17:40:51,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 17:40:51,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:51,958 INFO L215 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] [2024-11-08 17:40:51,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:40:51,958 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:51,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:51,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1919227007, now seen corresponding path program 1 times [2024-11-08 17:40:51,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:51,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123703470] [2024-11-08 17:40:51,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:51,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:52,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:52,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123703470] [2024-11-08 17:40:52,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123703470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:52,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:52,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:40:52,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490009247] [2024-11-08 17:40:52,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:52,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:40:52,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:52,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:40:52,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:40:52,096 INFO L87 Difference]: Start difference. First operand 3072 states and 4608 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) [2024-11-08 17:40:52,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:52,291 INFO L93 Difference]: Finished difference Result 6099 states and 9170 transitions. [2024-11-08 17:40:52,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:40:52,292 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 [2024-11-08 17:40:52,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:52,301 INFO L225 Difference]: With dead ends: 6099 [2024-11-08 17:40:52,301 INFO L226 Difference]: Without dead ends: 3072 [2024-11-08 17:40:52,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:40:52,305 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 510 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:52,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 127 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:40:52,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2024-11-08 17:40:52,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3072. [2024-11-08 17:40:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3071 states have (on average 1.4832302181699772) internal successors, (4555), 3071 states have internal predecessors, (4555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4555 transitions. [2024-11-08 17:40:52,360 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4555 transitions. Word has length 82 [2024-11-08 17:40:52,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:52,360 INFO L471 AbstractCegarLoop]: Abstraction has 3072 states and 4555 transitions. [2024-11-08 17:40:52,361 INFO L472 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) [2024-11-08 17:40:52,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4555 transitions. [2024-11-08 17:40:52,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 17:40:52,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:52,362 INFO L215 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] [2024-11-08 17:40:52,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:40:52,363 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:52,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:52,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1274660632, now seen corresponding path program 1 times [2024-11-08 17:40:52,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:52,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054456410] [2024-11-08 17:40:52,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:52,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:52,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:52,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054456410] [2024-11-08 17:40:52,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054456410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:52,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:52,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:40:52,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900901247] [2024-11-08 17:40:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:52,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:40:52,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:40:52,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:40:52,722 INFO L87 Difference]: Start difference. First operand 3072 states and 4555 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) [2024-11-08 17:40:52,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:52,774 INFO L93 Difference]: Finished difference Result 3098 states and 4592 transitions. [2024-11-08 17:40:52,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:40:52,775 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 [2024-11-08 17:40:52,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:52,781 INFO L225 Difference]: With dead ends: 3098 [2024-11-08 17:40:52,782 INFO L226 Difference]: Without dead ends: 3096 [2024-11-08 17:40:52,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:40:52,788 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 0 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:52,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 749 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:40:52,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2024-11-08 17:40:52,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 3096. [2024-11-08 17:40:52,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 1.4749596122778674) internal successors, (4565), 3095 states have internal predecessors, (4565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:52,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4565 transitions. [2024-11-08 17:40:52,854 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4565 transitions. Word has length 83 [2024-11-08 17:40:52,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:52,855 INFO L471 AbstractCegarLoop]: Abstraction has 3096 states and 4565 transitions. [2024-11-08 17:40:52,859 INFO L472 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) [2024-11-08 17:40:52,859 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4565 transitions. [2024-11-08 17:40:52,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 17:40:52,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:52,860 INFO L215 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] [2024-11-08 17:40:52,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:40:52,861 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:52,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:52,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1071199524, now seen corresponding path program 1 times [2024-11-08 17:40:52,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:52,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808409770] [2024-11-08 17:40:52,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:52,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:53,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:53,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:53,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808409770] [2024-11-08 17:40:53,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808409770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:53,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:53,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:40:53,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974553191] [2024-11-08 17:40:53,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:53,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:40:53,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:53,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:40:53,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:40:53,247 INFO L87 Difference]: Start difference. First operand 3096 states and 4565 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2024-11-08 17:40:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:53,786 INFO L93 Difference]: Finished difference Result 8921 states and 13184 transitions. [2024-11-08 17:40:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:40:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 [2024-11-08 17:40:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:53,800 INFO L225 Difference]: With dead ends: 8921 [2024-11-08 17:40:53,801 INFO L226 Difference]: Without dead ends: 5981 [2024-11-08 17:40:53,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:40:53,806 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 702 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:53,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 459 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:40:53,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2024-11-08 17:40:53,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 3096. [2024-11-08 17:40:53,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 1.4746365105008077) internal successors, (4564), 3095 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:53,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4564 transitions. [2024-11-08 17:40:53,903 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4564 transitions. Word has length 83 [2024-11-08 17:40:53,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:53,904 INFO L471 AbstractCegarLoop]: Abstraction has 3096 states and 4564 transitions. [2024-11-08 17:40:53,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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) [2024-11-08 17:40:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4564 transitions. [2024-11-08 17:40:53,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 17:40:53,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:53,906 INFO L215 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] [2024-11-08 17:40:53,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:40:53,906 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:53,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:53,907 INFO L85 PathProgramCache]: Analyzing trace with hash -49884989, now seen corresponding path program 1 times [2024-11-08 17:40:53,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:53,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245785602] [2024-11-08 17:40:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:53,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:54,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:54,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245785602] [2024-11-08 17:40:54,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245785602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:54,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:54,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 17:40:54,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219314215] [2024-11-08 17:40:54,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:54,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:40:54,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:54,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:40:54,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:40:54,656 INFO L87 Difference]: Start difference. First operand 3096 states and 4564 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2024-11-08 17:40:55,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:55,764 INFO L93 Difference]: Finished difference Result 7722 states and 11348 transitions. [2024-11-08 17:40:55,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:40:55,765 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 [2024-11-08 17:40:55,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:55,773 INFO L225 Difference]: With dead ends: 7722 [2024-11-08 17:40:55,773 INFO L226 Difference]: Without dead ends: 4747 [2024-11-08 17:40:55,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2024-11-08 17:40:55,778 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1215 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:55,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 866 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:40:55,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4747 states. [2024-11-08 17:40:55,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4747 to 3096. [2024-11-08 17:40:55,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 1.4736672051696285) internal successors, (4561), 3095 states have internal predecessors, (4561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4561 transitions. [2024-11-08 17:40:55,837 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4561 transitions. Word has length 84 [2024-11-08 17:40:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:55,837 INFO L471 AbstractCegarLoop]: Abstraction has 3096 states and 4561 transitions. [2024-11-08 17:40:55,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2024-11-08 17:40:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4561 transitions. [2024-11-08 17:40:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 17:40:55,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:55,839 INFO L215 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] [2024-11-08 17:40:55,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:40:55,840 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:55,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:55,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1500586117, now seen corresponding path program 1 times [2024-11-08 17:40:55,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:55,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094631393] [2024-11-08 17:40:55,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:55,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:56,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094631393] [2024-11-08 17:40:56,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094631393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:56,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:56,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:40:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96120551] [2024-11-08 17:40:56,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:56,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:40:56,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:56,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:40:56,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:40:56,239 INFO L87 Difference]: Start difference. First operand 3096 states and 4561 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 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) [2024-11-08 17:40:56,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:56,855 INFO L93 Difference]: Finished difference Result 9135 states and 13457 transitions. [2024-11-08 17:40:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:40:56,856 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 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 [2024-11-08 17:40:56,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:56,867 INFO L225 Difference]: With dead ends: 9135 [2024-11-08 17:40:56,867 INFO L226 Difference]: Without dead ends: 6175 [2024-11-08 17:40:56,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 17:40:56,872 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 486 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:56,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 589 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:40:56,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2024-11-08 17:40:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 3096. [2024-11-08 17:40:56,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 1.4717285945072698) internal successors, (4555), 3095 states have internal predecessors, (4555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4555 transitions. [2024-11-08 17:40:56,940 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4555 transitions. Word has length 84 [2024-11-08 17:40:56,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:56,941 INFO L471 AbstractCegarLoop]: Abstraction has 3096 states and 4555 transitions. [2024-11-08 17:40:56,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 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) [2024-11-08 17:40:56,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4555 transitions. [2024-11-08 17:40:56,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 17:40:56,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:56,943 INFO L215 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] [2024-11-08 17:40:56,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:40:56,943 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:56,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:56,944 INFO L85 PathProgramCache]: Analyzing trace with hash 842057330, now seen corresponding path program 1 times [2024-11-08 17:40:56,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:56,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440998986] [2024-11-08 17:40:56,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:56,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:57,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:57,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440998986] [2024-11-08 17:40:57,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440998986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:57,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:57,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:40:57,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286971475] [2024-11-08 17:40:57,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:57,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:40:57,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:57,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:40:57,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:40:57,307 INFO L87 Difference]: Start difference. First operand 3096 states and 4555 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 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) [2024-11-08 17:40:57,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:57,862 INFO L93 Difference]: Finished difference Result 9015 states and 13259 transitions. [2024-11-08 17:40:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:40:57,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 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 [2024-11-08 17:40:57,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:57,873 INFO L225 Difference]: With dead ends: 9015 [2024-11-08 17:40:57,873 INFO L226 Difference]: Without dead ends: 6130 [2024-11-08 17:40:57,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 17:40:57,878 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 767 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:57,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 511 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:40:57,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6130 states. [2024-11-08 17:40:57,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6130 to 3096. [2024-11-08 17:40:57,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 1.4681744749596122) internal successors, (4544), 3095 states have internal predecessors, (4544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:57,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4544 transitions. [2024-11-08 17:40:57,945 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4544 transitions. Word has length 85 [2024-11-08 17:40:57,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:57,945 INFO L471 AbstractCegarLoop]: Abstraction has 3096 states and 4544 transitions. [2024-11-08 17:40:57,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 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) [2024-11-08 17:40:57,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4544 transitions. [2024-11-08 17:40:57,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 17:40:57,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:57,947 INFO L215 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] [2024-11-08 17:40:57,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:40:57,948 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:57,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:57,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1612440165, now seen corresponding path program 1 times [2024-11-08 17:40:57,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:57,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682224761] [2024-11-08 17:40:57,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:57,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:40:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:40:58,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:40:58,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682224761] [2024-11-08 17:40:58,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682224761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:40:58,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:40:58,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:40:58,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621962872] [2024-11-08 17:40:58,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:40:58,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:40:58,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:40:58,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:40:58,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:40:58,444 INFO L87 Difference]: Start difference. First operand 3096 states and 4544 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 9 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) [2024-11-08 17:40:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:40:59,075 INFO L93 Difference]: Finished difference Result 9090 states and 13350 transitions. [2024-11-08 17:40:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 17:40:59,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 9 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 [2024-11-08 17:40:59,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:40:59,085 INFO L225 Difference]: With dead ends: 9090 [2024-11-08 17:40:59,086 INFO L226 Difference]: Without dead ends: 6160 [2024-11-08 17:40:59,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:40:59,090 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 1005 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:40:59,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 580 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:40:59,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6160 states. [2024-11-08 17:40:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6160 to 3096. [2024-11-08 17:40:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 1.4652665589660743) internal successors, (4535), 3095 states have internal predecessors, (4535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:40:59,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4535 transitions. [2024-11-08 17:40:59,150 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4535 transitions. Word has length 86 [2024-11-08 17:40:59,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:40:59,150 INFO L471 AbstractCegarLoop]: Abstraction has 3096 states and 4535 transitions. [2024-11-08 17:40:59,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 9 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) [2024-11-08 17:40:59,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4535 transitions. [2024-11-08 17:40:59,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 17:40:59,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:40:59,152 INFO L215 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] [2024-11-08 17:40:59,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:40:59,152 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:40:59,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:40:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash 420822697, now seen corresponding path program 1 times [2024-11-08 17:40:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:40:59,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413656460] [2024-11-08 17:40:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:40:59,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:40:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:00,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:00,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413656460] [2024-11-08 17:41:00,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413656460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:00,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:00,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 17:41:00,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912856979] [2024-11-08 17:41:00,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:00,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 17:41:00,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:00,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 17:41:00,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:41:00,115 INFO L87 Difference]: Start difference. First operand 3096 states and 4535 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) 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) [2024-11-08 17:41:01,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:01,035 INFO L93 Difference]: Finished difference Result 6942 states and 10217 transitions. [2024-11-08 17:41:01,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:41:01,036 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) 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 [2024-11-08 17:41:01,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:01,046 INFO L225 Difference]: With dead ends: 6942 [2024-11-08 17:41:01,047 INFO L226 Difference]: Without dead ends: 6012 [2024-11-08 17:41:01,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 17:41:01,050 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 854 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:01,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1501 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:41:01,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6012 states. [2024-11-08 17:41:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6012 to 3069. [2024-11-08 17:41:01,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 3068 states have (on average 1.4641460234680574) internal successors, (4492), 3068 states have internal predecessors, (4492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:01,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 4492 transitions. [2024-11-08 17:41:01,117 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 4492 transitions. Word has length 87 [2024-11-08 17:41:01,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:01,118 INFO L471 AbstractCegarLoop]: Abstraction has 3069 states and 4492 transitions. [2024-11-08 17:41:01,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) 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) [2024-11-08 17:41:01,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 4492 transitions. [2024-11-08 17:41:01,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 17:41:01,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:01,119 INFO L215 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] [2024-11-08 17:41:01,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 17:41:01,120 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:01,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:01,120 INFO L85 PathProgramCache]: Analyzing trace with hash -891179609, now seen corresponding path program 1 times [2024-11-08 17:41:01,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:01,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727846625] [2024-11-08 17:41:01,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:01,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:02,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:02,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727846625] [2024-11-08 17:41:02,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727846625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:02,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:02,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 17:41:02,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073410705] [2024-11-08 17:41:02,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:02,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 17:41:02,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:02,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 17:41:02,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:41:02,236 INFO L87 Difference]: Start difference. First operand 3069 states and 4492 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 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) [2024-11-08 17:41:03,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:03,782 INFO L93 Difference]: Finished difference Result 7795 states and 11465 transitions. [2024-11-08 17:41:03,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:41:03,783 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 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 [2024-11-08 17:41:03,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:03,797 INFO L225 Difference]: With dead ends: 7795 [2024-11-08 17:41:03,797 INFO L226 Difference]: Without dead ends: 6855 [2024-11-08 17:41:03,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 17:41:03,801 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 850 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 4323 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:03,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 4323 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:41:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6855 states. [2024-11-08 17:41:03,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6855 to 3022. [2024-11-08 17:41:03,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3022 states, 3021 states have (on average 1.4654088050314464) internal successors, (4427), 3021 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3022 states to 3022 states and 4427 transitions. [2024-11-08 17:41:03,912 INFO L78 Accepts]: Start accepts. Automaton has 3022 states and 4427 transitions. Word has length 87 [2024-11-08 17:41:03,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:03,912 INFO L471 AbstractCegarLoop]: Abstraction has 3022 states and 4427 transitions. [2024-11-08 17:41:03,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 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) [2024-11-08 17:41:03,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3022 states and 4427 transitions. [2024-11-08 17:41:03,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 17:41:03,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:03,915 INFO L215 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] [2024-11-08 17:41:03,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 17:41:03,916 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:03,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:03,917 INFO L85 PathProgramCache]: Analyzing trace with hash -359518871, now seen corresponding path program 1 times [2024-11-08 17:41:03,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:03,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304381563] [2024-11-08 17:41:03,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:03,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:05,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:05,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:05,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304381563] [2024-11-08 17:41:05,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304381563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:05,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:05,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 17:41:05,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670831449] [2024-11-08 17:41:05,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:05,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 17:41:05,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:05,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 17:41:05,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:41:05,112 INFO L87 Difference]: Start difference. First operand 3022 states and 4427 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 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) [2024-11-08 17:41:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:06,824 INFO L93 Difference]: Finished difference Result 12609 states and 18602 transitions. [2024-11-08 17:41:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:41:06,825 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 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 [2024-11-08 17:41:06,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:06,846 INFO L225 Difference]: With dead ends: 12609 [2024-11-08 17:41:06,846 INFO L226 Difference]: Without dead ends: 11704 [2024-11-08 17:41:06,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 17:41:06,851 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 793 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:06,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 4014 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 17:41:06,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11704 states. [2024-11-08 17:41:06,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11704 to 3004. [2024-11-08 17:41:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3004 states, 3003 states have (on average 1.465201465201465) internal successors, (4400), 3003 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:06,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 4400 transitions. [2024-11-08 17:41:06,942 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 4400 transitions. Word has length 87 [2024-11-08 17:41:06,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:06,943 INFO L471 AbstractCegarLoop]: Abstraction has 3004 states and 4400 transitions. [2024-11-08 17:41:06,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 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) [2024-11-08 17:41:06,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 4400 transitions. [2024-11-08 17:41:06,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 17:41:06,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:06,944 INFO L215 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] [2024-11-08 17:41:06,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 17:41:06,945 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:06,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash 633451142, now seen corresponding path program 1 times [2024-11-08 17:41:06,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:06,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6169580] [2024-11-08 17:41:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:06,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:08,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:08,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:08,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6169580] [2024-11-08 17:41:08,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6169580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:08,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:08,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-08 17:41:08,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240643405] [2024-11-08 17:41:08,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:08,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 17:41:08,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:08,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 17:41:08,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:41:08,823 INFO L87 Difference]: Start difference. First operand 3004 states and 4400 transitions. Second operand has 22 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 22 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) [2024-11-08 17:41:12,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:12,030 INFO L93 Difference]: Finished difference Result 7684 states and 11311 transitions. [2024-11-08 17:41:12,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:41:12,032 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 22 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 [2024-11-08 17:41:12,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:12,042 INFO L225 Difference]: With dead ends: 7684 [2024-11-08 17:41:12,042 INFO L226 Difference]: Without dead ends: 6786 [2024-11-08 17:41:12,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=324, Invalid=1236, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 17:41:12,046 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 1233 mSDsluCounter, 3702 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:12,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 4027 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1578 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 17:41:12,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6786 states. [2024-11-08 17:41:12,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6786 to 3008. [2024-11-08 17:41:12,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.4645826405054871) internal successors, (4404), 3007 states have internal predecessors, (4404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:12,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4404 transitions. [2024-11-08 17:41:12,108 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4404 transitions. Word has length 87 [2024-11-08 17:41:12,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:12,108 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4404 transitions. [2024-11-08 17:41:12,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 22 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) [2024-11-08 17:41:12,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4404 transitions. [2024-11-08 17:41:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 17:41:12,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:12,110 INFO L215 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] [2024-11-08 17:41:12,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 17:41:12,110 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:12,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:12,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1915986027, now seen corresponding path program 1 times [2024-11-08 17:41:12,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:12,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135687721] [2024-11-08 17:41:12,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:12,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:12,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:12,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135687721] [2024-11-08 17:41:12,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135687721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:12,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:12,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:41:12,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337762983] [2024-11-08 17:41:12,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:12,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:41:12,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:12,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:41:12,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:41:12,305 INFO L87 Difference]: Start difference. First operand 3008 states and 4404 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 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) [2024-11-08 17:41:12,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:12,364 INFO L93 Difference]: Finished difference Result 7169 states and 10567 transitions. [2024-11-08 17:41:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:41:12,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 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 [2024-11-08 17:41:12,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:12,372 INFO L225 Difference]: With dead ends: 7169 [2024-11-08 17:41:12,372 INFO L226 Difference]: Without dead ends: 4295 [2024-11-08 17:41:12,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:41:12,376 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 90 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:12,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 436 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:41:12,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4295 states. [2024-11-08 17:41:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4295 to 4269. [2024-11-08 17:41:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4269 states, 4268 states have (on average 1.4592314901593253) internal successors, (6228), 4268 states have internal predecessors, (6228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4269 states to 4269 states and 6228 transitions. [2024-11-08 17:41:12,436 INFO L78 Accepts]: Start accepts. Automaton has 4269 states and 6228 transitions. Word has length 88 [2024-11-08 17:41:12,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:12,437 INFO L471 AbstractCegarLoop]: Abstraction has 4269 states and 6228 transitions. [2024-11-08 17:41:12,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 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) [2024-11-08 17:41:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 4269 states and 6228 transitions. [2024-11-08 17:41:12,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 17:41:12,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:12,438 INFO L215 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] [2024-11-08 17:41:12,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 17:41:12,438 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:12,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:12,439 INFO L85 PathProgramCache]: Analyzing trace with hash 440109560, now seen corresponding path program 1 times [2024-11-08 17:41:12,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:12,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413595480] [2024-11-08 17:41:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:12,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:15,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:15,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:15,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413595480] [2024-11-08 17:41:15,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413595480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:15,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:15,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2024-11-08 17:41:15,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062800528] [2024-11-08 17:41:15,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:15,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-08 17:41:15,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:15,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-08 17:41:15,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=976, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 17:41:15,446 INFO L87 Difference]: Start difference. First operand 4269 states and 6228 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 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) [2024-11-08 17:41:23,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:23,713 INFO L93 Difference]: Finished difference Result 12062 states and 17657 transitions. [2024-11-08 17:41:23,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-08 17:41:23,714 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 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 [2024-11-08 17:41:23,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:23,734 INFO L225 Difference]: With dead ends: 12062 [2024-11-08 17:41:23,734 INFO L226 Difference]: Without dead ends: 10965 [2024-11-08 17:41:23,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=515, Invalid=3145, Unknown=0, NotChecked=0, Total=3660 [2024-11-08 17:41:23,740 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 1512 mSDsluCounter, 7095 mSDsCounter, 0 mSdLazyCounter, 4996 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 7470 SdHoareTripleChecker+Invalid, 5008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:23,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 7470 Invalid, 5008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4996 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-08 17:41:23,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2024-11-08 17:41:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 4282. [2024-11-08 17:41:23,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4281 states have (on average 1.458537724830647) internal successors, (6244), 4281 states have internal predecessors, (6244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6244 transitions. [2024-11-08 17:41:23,862 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6244 transitions. Word has length 88 [2024-11-08 17:41:23,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:23,863 INFO L471 AbstractCegarLoop]: Abstraction has 4282 states and 6244 transitions. [2024-11-08 17:41:23,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 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) [2024-11-08 17:41:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6244 transitions. [2024-11-08 17:41:23,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 17:41:23,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:23,864 INFO L215 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] [2024-11-08 17:41:23,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 17:41:23,865 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:23,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:23,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1409612872, now seen corresponding path program 1 times [2024-11-08 17:41:23,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:23,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100494947] [2024-11-08 17:41:23,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:23,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:25,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:25,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100494947] [2024-11-08 17:41:25,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100494947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:25,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:25,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 17:41:25,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500019423] [2024-11-08 17:41:25,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:25,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 17:41:25,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:25,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 17:41:25,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:41:25,353 INFO L87 Difference]: Start difference. First operand 4282 states and 6244 transitions. Second operand has 17 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 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) [2024-11-08 17:41:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:27,477 INFO L93 Difference]: Finished difference Result 6595 states and 9638 transitions. [2024-11-08 17:41:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 17:41:27,478 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 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 [2024-11-08 17:41:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:27,487 INFO L225 Difference]: With dead ends: 6595 [2024-11-08 17:41:27,487 INFO L226 Difference]: Without dead ends: 5481 [2024-11-08 17:41:27,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=259, Invalid=797, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 17:41:27,491 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 945 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:27,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 2545 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:41:27,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2024-11-08 17:41:27,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 4277. [2024-11-08 17:41:27,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4276 states have (on average 1.4586061739943872) internal successors, (6237), 4276 states have internal predecessors, (6237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6237 transitions. [2024-11-08 17:41:27,566 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6237 transitions. Word has length 88 [2024-11-08 17:41:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:27,567 INFO L471 AbstractCegarLoop]: Abstraction has 4277 states and 6237 transitions. [2024-11-08 17:41:27,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 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) [2024-11-08 17:41:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6237 transitions. [2024-11-08 17:41:27,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 17:41:27,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:27,568 INFO L215 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] [2024-11-08 17:41:27,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 17:41:27,568 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:27,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:27,569 INFO L85 PathProgramCache]: Analyzing trace with hash 396043865, now seen corresponding path program 1 times [2024-11-08 17:41:27,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:27,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794740348] [2024-11-08 17:41:27,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:27,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:29,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:29,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794740348] [2024-11-08 17:41:29,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794740348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:29,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:29,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 17:41:29,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597959852] [2024-11-08 17:41:29,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:29,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 17:41:29,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:29,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 17:41:29,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:41:29,041 INFO L87 Difference]: Start difference. First operand 4277 states and 6237 transitions. Second operand has 17 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 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) [2024-11-08 17:41:30,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:30,918 INFO L93 Difference]: Finished difference Result 5268 states and 7702 transitions. [2024-11-08 17:41:30,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:41:30,919 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 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 [2024-11-08 17:41:30,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:30,927 INFO L225 Difference]: With dead ends: 5268 [2024-11-08 17:41:30,927 INFO L226 Difference]: Without dead ends: 4151 [2024-11-08 17:41:30,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2024-11-08 17:41:30,931 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 297 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:30,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1751 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 17:41:30,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4151 states. [2024-11-08 17:41:31,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4151 to 4151. [2024-11-08 17:41:31,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4151 states, 4150 states have (on average 1.4604819277108434) internal successors, (6061), 4150 states have internal predecessors, (6061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4151 states to 4151 states and 6061 transitions. [2024-11-08 17:41:31,045 INFO L78 Accepts]: Start accepts. Automaton has 4151 states and 6061 transitions. Word has length 88 [2024-11-08 17:41:31,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:31,045 INFO L471 AbstractCegarLoop]: Abstraction has 4151 states and 6061 transitions. [2024-11-08 17:41:31,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 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) [2024-11-08 17:41:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4151 states and 6061 transitions. [2024-11-08 17:41:31,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 17:41:31,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:31,047 INFO L215 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] [2024-11-08 17:41:31,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 17:41:31,047 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:31,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:31,048 INFO L85 PathProgramCache]: Analyzing trace with hash 758396708, now seen corresponding path program 1 times [2024-11-08 17:41:31,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:31,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278326941] [2024-11-08 17:41:31,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:31,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:32,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:32,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278326941] [2024-11-08 17:41:32,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278326941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:32,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:32,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 17:41:32,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673458058] [2024-11-08 17:41:32,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:32,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 17:41:32,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:32,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 17:41:32,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:41:32,070 INFO L87 Difference]: Start difference. First operand 4151 states and 6061 transitions. Second operand has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 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) [2024-11-08 17:41:33,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:33,607 INFO L93 Difference]: Finished difference Result 17563 states and 25782 transitions. [2024-11-08 17:41:33,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:41:33,608 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 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 [2024-11-08 17:41:33,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:33,627 INFO L225 Difference]: With dead ends: 17563 [2024-11-08 17:41:33,627 INFO L226 Difference]: Without dead ends: 16255 [2024-11-08 17:41:33,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 17:41:33,634 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 630 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:33,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 3555 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 17:41:33,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16255 states. [2024-11-08 17:41:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16255 to 4136. [2024-11-08 17:41:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4136 states, 4135 states have (on average 1.460943168077388) internal successors, (6041), 4135 states have internal predecessors, (6041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4136 states to 4136 states and 6041 transitions. [2024-11-08 17:41:33,777 INFO L78 Accepts]: Start accepts. Automaton has 4136 states and 6041 transitions. Word has length 89 [2024-11-08 17:41:33,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:33,777 INFO L471 AbstractCegarLoop]: Abstraction has 4136 states and 6041 transitions. [2024-11-08 17:41:33,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 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) [2024-11-08 17:41:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4136 states and 6041 transitions. [2024-11-08 17:41:33,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 17:41:33,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:33,781 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:41:33,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 17:41:33,781 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:33,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:33,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1743887154, now seen corresponding path program 1 times [2024-11-08 17:41:33,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:33,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515554767] [2024-11-08 17:41:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:33,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:33,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:33,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515554767] [2024-11-08 17:41:33,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515554767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:33,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:33,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:41:33,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043953541] [2024-11-08 17:41:33,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:33,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:33,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:33,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:33,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:33,944 INFO L87 Difference]: Start difference. First operand 4136 states and 6041 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:33,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:33,988 INFO L93 Difference]: Finished difference Result 8636 states and 12678 transitions. [2024-11-08 17:41:33,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:33,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-08 17:41:33,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:33,997 INFO L225 Difference]: With dead ends: 8636 [2024-11-08 17:41:33,998 INFO L226 Difference]: Without dead ends: 5760 [2024-11-08 17:41:34,002 INFO L431 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 [2024-11-08 17:41:34,004 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 82 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:34,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 394 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:41:34,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5760 states. [2024-11-08 17:41:34,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5760 to 5542. [2024-11-08 17:41:34,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 5541 states have (on average 1.45659628225952) internal successors, (8071), 5541 states have internal predecessors, (8071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:34,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 8071 transitions. [2024-11-08 17:41:34,099 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 8071 transitions. Word has length 116 [2024-11-08 17:41:34,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:34,099 INFO L471 AbstractCegarLoop]: Abstraction has 5542 states and 8071 transitions. [2024-11-08 17:41:34,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:34,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 8071 transitions. [2024-11-08 17:41:34,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 17:41:34,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:34,102 INFO L215 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] [2024-11-08 17:41:34,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 17:41:34,102 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:34,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:34,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1636203635, now seen corresponding path program 1 times [2024-11-08 17:41:34,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:34,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034463833] [2024-11-08 17:41:34,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:34,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:34,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:34,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:34,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034463833] [2024-11-08 17:41:34,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034463833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:34,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:34,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:41:34,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814109406] [2024-11-08 17:41:34,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:34,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:41:34,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:34,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:41:34,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:41:34,337 INFO L87 Difference]: Start difference. First operand 5542 states and 8071 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:34,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:34,792 INFO L93 Difference]: Finished difference Result 20382 states and 29951 transitions. [2024-11-08 17:41:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:41:34,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-08 17:41:34,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:34,813 INFO L225 Difference]: With dead ends: 20382 [2024-11-08 17:41:34,813 INFO L226 Difference]: Without dead ends: 14962 [2024-11-08 17:41:34,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:41:34,821 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 934 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:34,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 342 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:41:34,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14962 states. [2024-11-08 17:41:35,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14962 to 11960. [2024-11-08 17:41:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11960 states, 11959 states have (on average 1.4558073417509825) internal successors, (17410), 11959 states have internal predecessors, (17410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:35,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11960 states to 11960 states and 17410 transitions. [2024-11-08 17:41:35,054 INFO L78 Accepts]: Start accepts. Automaton has 11960 states and 17410 transitions. Word has length 116 [2024-11-08 17:41:35,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:35,055 INFO L471 AbstractCegarLoop]: Abstraction has 11960 states and 17410 transitions. [2024-11-08 17:41:35,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:35,055 INFO L276 IsEmpty]: Start isEmpty. Operand 11960 states and 17410 transitions. [2024-11-08 17:41:35,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 17:41:35,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:35,057 INFO L215 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] [2024-11-08 17:41:35,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 17:41:35,057 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:35,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:35,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2144971769, now seen corresponding path program 1 times [2024-11-08 17:41:35,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:35,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256745998] [2024-11-08 17:41:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:35,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:35,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:35,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256745998] [2024-11-08 17:41:35,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256745998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:35,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:35,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:41:35,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073574577] [2024-11-08 17:41:35,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:35,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:41:35,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:35,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:41:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:41:35,271 INFO L87 Difference]: Start difference. First operand 11960 states and 17410 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:35,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:35,671 INFO L93 Difference]: Finished difference Result 39636 states and 57968 transitions. [2024-11-08 17:41:35,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:41:35,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-08 17:41:35,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:35,706 INFO L225 Difference]: With dead ends: 39636 [2024-11-08 17:41:35,707 INFO L226 Difference]: Without dead ends: 27798 [2024-11-08 17:41:35,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:41:35,723 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 849 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:35,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 340 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:41:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27798 states. [2024-11-08 17:41:36,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27798 to 25796. [2024-11-08 17:41:36,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25796 states, 25795 states have (on average 1.4533049040511727) internal successors, (37488), 25795 states have internal predecessors, (37488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25796 states to 25796 states and 37488 transitions. [2024-11-08 17:41:36,307 INFO L78 Accepts]: Start accepts. Automaton has 25796 states and 37488 transitions. Word has length 116 [2024-11-08 17:41:36,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:36,308 INFO L471 AbstractCegarLoop]: Abstraction has 25796 states and 37488 transitions. [2024-11-08 17:41:36,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand 25796 states and 37488 transitions. [2024-11-08 17:41:36,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 17:41:36,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:36,314 INFO L215 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] [2024-11-08 17:41:36,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 17:41:36,315 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:36,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:36,315 INFO L85 PathProgramCache]: Analyzing trace with hash 531272813, now seen corresponding path program 1 times [2024-11-08 17:41:36,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:36,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732975647] [2024-11-08 17:41:36,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:36,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:36,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:36,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732975647] [2024-11-08 17:41:36,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732975647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:36,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:36,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:41:36,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637587051] [2024-11-08 17:41:36,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:36,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:41:36,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:36,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:41:36,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:41:36,673 INFO L87 Difference]: Start difference. First operand 25796 states and 37488 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:37,333 INFO L93 Difference]: Finished difference Result 96744 states and 141402 transitions. [2024-11-08 17:41:37,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:41:37,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-08 17:41:37,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:37,444 INFO L225 Difference]: With dead ends: 96744 [2024-11-08 17:41:37,444 INFO L226 Difference]: Without dead ends: 71070 [2024-11-08 17:41:37,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:41:37,477 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 1019 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:37,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 344 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:41:37,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71070 states. [2024-11-08 17:41:38,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71070 to 55468. [2024-11-08 17:41:38,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55468 states, 55467 states have (on average 1.4503037842320659) internal successors, (80444), 55467 states have internal predecessors, (80444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:38,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55468 states to 55468 states and 80444 transitions. [2024-11-08 17:41:38,997 INFO L78 Accepts]: Start accepts. Automaton has 55468 states and 80444 transitions. Word has length 116 [2024-11-08 17:41:38,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:38,997 INFO L471 AbstractCegarLoop]: Abstraction has 55468 states and 80444 transitions. [2024-11-08 17:41:38,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:38,997 INFO L276 IsEmpty]: Start isEmpty. Operand 55468 states and 80444 transitions. [2024-11-08 17:41:39,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 17:41:39,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:39,005 INFO L215 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] [2024-11-08 17:41:39,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 17:41:39,005 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:39,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:39,008 INFO L85 PathProgramCache]: Analyzing trace with hash 590869479, now seen corresponding path program 1 times [2024-11-08 17:41:39,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:39,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941252847] [2024-11-08 17:41:39,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:39,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:39,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:39,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941252847] [2024-11-08 17:41:39,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941252847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:39,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:39,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:41:39,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537568797] [2024-11-08 17:41:39,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:39,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:41:39,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:39,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:41:39,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:41:39,214 INFO L87 Difference]: Start difference. First operand 55468 states and 80444 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:40,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:40,240 INFO L93 Difference]: Finished difference Result 125966 states and 183035 transitions. [2024-11-08 17:41:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:41:40,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-08 17:41:40,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:40,319 INFO L225 Difference]: With dead ends: 125966 [2024-11-08 17:41:40,319 INFO L226 Difference]: Without dead ends: 70620 [2024-11-08 17:41:40,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:41:40,352 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 744 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:40,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 433 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:41:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70620 states. [2024-11-08 17:41:41,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70620 to 59230. [2024-11-08 17:41:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59230 states, 59229 states have (on average 1.4464029445035371) internal successors, (85669), 59229 states have internal predecessors, (85669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:41,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59230 states to 59230 states and 85669 transitions. [2024-11-08 17:41:41,600 INFO L78 Accepts]: Start accepts. Automaton has 59230 states and 85669 transitions. Word has length 116 [2024-11-08 17:41:41,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:41,601 INFO L471 AbstractCegarLoop]: Abstraction has 59230 states and 85669 transitions. [2024-11-08 17:41:41,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:41,601 INFO L276 IsEmpty]: Start isEmpty. Operand 59230 states and 85669 transitions. [2024-11-08 17:41:41,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 17:41:41,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:41,617 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:41:41,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 17:41:41,617 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:41,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:41,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1143695338, now seen corresponding path program 1 times [2024-11-08 17:41:41,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:41,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969543440] [2024-11-08 17:41:41,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:41,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:42,049 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-08 17:41:42,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:42,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969543440] [2024-11-08 17:41:42,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969543440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:42,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:42,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:41:42,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105061823] [2024-11-08 17:41:42,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:42,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:42,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:42,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:42,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:42,051 INFO L87 Difference]: Start difference. First operand 59230 states and 85669 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:42,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:42,313 INFO L93 Difference]: Finished difference Result 114098 states and 164751 transitions. [2024-11-08 17:41:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:42,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 143 [2024-11-08 17:41:42,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:42,573 INFO L225 Difference]: With dead ends: 114098 [2024-11-08 17:41:42,577 INFO L226 Difference]: Without dead ends: 55002 [2024-11-08 17:41:42,609 INFO L431 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 [2024-11-08 17:41:42,610 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 78 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:42,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:41:42,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55002 states. [2024-11-08 17:41:43,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55002 to 53740. [2024-11-08 17:41:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53740 states, 53739 states have (on average 1.4336701464485755) internal successors, (77044), 53739 states have internal predecessors, (77044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53740 states to 53740 states and 77044 transitions. [2024-11-08 17:41:43,546 INFO L78 Accepts]: Start accepts. Automaton has 53740 states and 77044 transitions. Word has length 143 [2024-11-08 17:41:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:43,547 INFO L471 AbstractCegarLoop]: Abstraction has 53740 states and 77044 transitions. [2024-11-08 17:41:43,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:43,547 INFO L276 IsEmpty]: Start isEmpty. Operand 53740 states and 77044 transitions. [2024-11-08 17:41:43,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 17:41:43,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:43,564 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:41:43,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 17:41:43,565 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:43,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:43,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1248985563, now seen corresponding path program 1 times [2024-11-08 17:41:43,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:43,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721269070] [2024-11-08 17:41:43,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:43,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 17:41:43,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:43,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721269070] [2024-11-08 17:41:43,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721269070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:43,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:43,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:41:43,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395492630] [2024-11-08 17:41:43,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:43,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:43,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:43,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:43,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:43,847 INFO L87 Difference]: Start difference. First operand 53740 states and 77044 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:44,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:44,485 INFO L93 Difference]: Finished difference Result 103160 states and 147558 transitions. [2024-11-08 17:41:44,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:44,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 144 [2024-11-08 17:41:44,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:44,552 INFO L225 Difference]: With dead ends: 103160 [2024-11-08 17:41:44,552 INFO L226 Difference]: Without dead ends: 49542 [2024-11-08 17:41:44,574 INFO L431 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 [2024-11-08 17:41:44,576 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 71 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:44,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 387 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:41:44,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49542 states. [2024-11-08 17:41:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49542 to 48340. [2024-11-08 17:41:44,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48340 states, 48339 states have (on average 1.4200542005420054) internal successors, (68644), 48339 states have internal predecessors, (68644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:45,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48340 states to 48340 states and 68644 transitions. [2024-11-08 17:41:45,411 INFO L78 Accepts]: Start accepts. Automaton has 48340 states and 68644 transitions. Word has length 144 [2024-11-08 17:41:45,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:45,411 INFO L471 AbstractCegarLoop]: Abstraction has 48340 states and 68644 transitions. [2024-11-08 17:41:45,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand 48340 states and 68644 transitions. [2024-11-08 17:41:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 17:41:45,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:45,427 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:41:45,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 17:41:45,428 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:45,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:45,428 INFO L85 PathProgramCache]: Analyzing trace with hash -753227601, now seen corresponding path program 1 times [2024-11-08 17:41:45,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:45,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252120259] [2024-11-08 17:41:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:45,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:45,656 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 17:41:45,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:45,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252120259] [2024-11-08 17:41:45,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252120259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:45,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:45,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:41:45,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220165828] [2024-11-08 17:41:45,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:45,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:45,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:45,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:45,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:45,659 INFO L87 Difference]: Start difference. First operand 48340 states and 68644 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:45,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:45,915 INFO L93 Difference]: Finished difference Result 92360 states and 130758 transitions. [2024-11-08 17:41:45,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:45,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 145 [2024-11-08 17:41:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:45,972 INFO L225 Difference]: With dead ends: 92360 [2024-11-08 17:41:45,972 INFO L226 Difference]: Without dead ends: 44142 [2024-11-08 17:41:45,998 INFO L431 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 [2024-11-08 17:41:45,999 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 64 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:46,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 387 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:41:46,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44142 states. [2024-11-08 17:41:46,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44142 to 42940. [2024-11-08 17:41:46,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42940 states, 42939 states have (on average 1.4030135774004984) internal successors, (60244), 42939 states have internal predecessors, (60244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:46,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42940 states to 42940 states and 60244 transitions. [2024-11-08 17:41:46,895 INFO L78 Accepts]: Start accepts. Automaton has 42940 states and 60244 transitions. Word has length 145 [2024-11-08 17:41:46,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:46,896 INFO L471 AbstractCegarLoop]: Abstraction has 42940 states and 60244 transitions. [2024-11-08 17:41:46,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:46,896 INFO L276 IsEmpty]: Start isEmpty. Operand 42940 states and 60244 transitions. [2024-11-08 17:41:46,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 17:41:46,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:46,900 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-08 17:41:46,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-08 17:41:46,900 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:46,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:46,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1187620974, now seen corresponding path program 1 times [2024-11-08 17:41:46,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:46,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174341414] [2024-11-08 17:41:46,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:46,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:47,096 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 17:41:47,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:47,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174341414] [2024-11-08 17:41:47,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174341414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:41:47,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:41:47,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:41:47,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041703332] [2024-11-08 17:41:47,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:41:47,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:41:47,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:47,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:41:47,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:41:47,099 INFO L87 Difference]: Start difference. First operand 42940 states and 60244 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:47,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:41:47,367 INFO L93 Difference]: Finished difference Result 124176 states and 173270 transitions. [2024-11-08 17:41:47,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:41:47,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 [2024-11-08 17:41:47,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:41:47,831 INFO L225 Difference]: With dead ends: 124176 [2024-11-08 17:41:47,831 INFO L226 Difference]: Without dead ends: 81358 [2024-11-08 17:41:47,850 INFO L431 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 [2024-11-08 17:41:47,850 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 57 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:41:47,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 389 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:41:47,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81358 states. [2024-11-08 17:41:48,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81358 to 75756. [2024-11-08 17:41:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75756 states, 75755 states have (on average 1.388106395617451) internal successors, (105156), 75755 states have internal predecessors, (105156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:49,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75756 states to 75756 states and 105156 transitions. [2024-11-08 17:41:49,303 INFO L78 Accepts]: Start accepts. Automaton has 75756 states and 105156 transitions. Word has length 146 [2024-11-08 17:41:49,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:41:49,304 INFO L471 AbstractCegarLoop]: Abstraction has 75756 states and 105156 transitions. [2024-11-08 17:41:49,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:41:49,304 INFO L276 IsEmpty]: Start isEmpty. Operand 75756 states and 105156 transitions. [2024-11-08 17:41:49,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 17:41:49,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:41:49,310 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-08 17:41:49,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-08 17:41:49,311 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:41:49,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:41:49,311 INFO L85 PathProgramCache]: Analyzing trace with hash 134527664, now seen corresponding path program 1 times [2024-11-08 17:41:49,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:41:49,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863019474] [2024-11-08 17:41:49,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:49,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:41:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:49,997 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:49,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:41:49,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863019474] [2024-11-08 17:41:49,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863019474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:41:49,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131139677] [2024-11-08 17:41:49,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:41:49,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:41:49,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:41:50,001 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:41:50,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:41:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:41:50,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 17:41:50,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:41:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:52,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:41:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:41:54,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131139677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:41:54,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:41:54,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2024-11-08 17:41:54,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078624489] [2024-11-08 17:41:54,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:41:54,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 17:41:54,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:41:54,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 17:41:54,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2024-11-08 17:41:54,995 INFO L87 Difference]: Start difference. First operand 75756 states and 105156 transitions. Second operand has 32 states, 32 states have (on average 12.96875) internal successors, (415), 31 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:16,355 INFO L93 Difference]: Finished difference Result 857684 states and 1182406 transitions. [2024-11-08 17:42:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2024-11-08 17:42:16,355 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 12.96875) internal successors, (415), 31 states have internal predecessors, (415), 0 states have call successors, (0), 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 [2024-11-08 17:42:16,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:17,597 INFO L225 Difference]: With dead ends: 857684 [2024-11-08 17:42:17,598 INFO L226 Difference]: Without dead ends: 782050 [2024-11-08 17:42:17,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11475 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=5082, Invalid=30074, Unknown=0, NotChecked=0, Total=35156 [2024-11-08 17:42:17,783 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 4008 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 4222 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4008 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 4291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:42:17,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4008 Valid, 3687 Invalid, 4291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4222 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-08 17:42:18,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782050 states. [2024-11-08 17:42:26,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782050 to 432752. [2024-11-08 17:42:26,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432752 states, 432751 states have (on average 1.3746195849345235) internal successors, (594868), 432751 states have internal predecessors, (594868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432752 states to 432752 states and 594868 transitions. [2024-11-08 17:42:29,198 INFO L78 Accepts]: Start accepts. Automaton has 432752 states and 594868 transitions. Word has length 147 [2024-11-08 17:42:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:42:29,199 INFO L471 AbstractCegarLoop]: Abstraction has 432752 states and 594868 transitions. [2024-11-08 17:42:29,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 12.96875) internal successors, (415), 31 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:29,203 INFO L276 IsEmpty]: Start isEmpty. Operand 432752 states and 594868 transitions. [2024-11-08 17:42:29,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 17:42:29,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:42:29,259 INFO L215 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] [2024-11-08 17:42:29,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:42:29,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5fa4a4-2b39-4099-9cfd-2bafeeef8909/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-08 17:42:29,460 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:42:29,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:42:29,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1740657434, now seen corresponding path program 1 times [2024-11-08 17:42:29,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:42:29,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399654701] [2024-11-08 17:42:29,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:42:29,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:42:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:42:29,632 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:42:29,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:42:29,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399654701] [2024-11-08 17:42:29,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399654701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:42:29,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:42:29,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:42:29,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077233512] [2024-11-08 17:42:29,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:42:29,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:42:29,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:42:29,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:42:29,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:42:29,635 INFO L87 Difference]: Start difference. First operand 432752 states and 594868 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:42:32,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:42:32,328 INFO L93 Difference]: Finished difference Result 756806 states and 1037210 transitions. [2024-11-08 17:42:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:42:32,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 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 [2024-11-08 17:42:32,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:42:32,901 INFO L225 Difference]: With dead ends: 756806 [2024-11-08 17:42:32,901 INFO L226 Difference]: Without dead ends: 324300 [2024-11-08 17:42:33,092 INFO L431 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 [2024-11-08 17:42:33,093 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 83 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 363 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 [2024-11-08 17:42:33,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 363 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:42:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324300 states. [2024-11-08 17:42:37,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324300 to 320198. [2024-11-08 17:42:38,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320198 states, 320197 states have (on average 1.3530545258075497) internal successors, (433244), 320197 states have internal predecessors, (433244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)