./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/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_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/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_805df074-b4c1-4ea8-a818-6b6a0c3abe37/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 8c74c5a9435f0a63b4462639dc1dbde4e8823a1089df2fad63ca5f5dce7dc603 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:21:06,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:21:06,872 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:21:06,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:21:06,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:21:06,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:21:06,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:21:06,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:21:06,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:21:06,930 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:21:06,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:21:06,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:21:06,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:21:06,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:21:06,936 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:21:06,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:21:06,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:21:06,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:21:06,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:21:06,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:21:06,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:21:06,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:21:06,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:21:06,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:21:06,947 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:21:06,947 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:21:06,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:21:06,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:21:06,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:21:06,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:21:06,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:21:06,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:21:06,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:21:06,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:21:06,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:21:06,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:21:06,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:21:06,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:21:06,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:21:06,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:21:06,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:21:06,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:21:06,955 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_805df074-b4c1-4ea8-a818-6b6a0c3abe37/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c74c5a9435f0a63b4462639dc1dbde4e8823a1089df2fad63ca5f5dce7dc603 [2024-11-08 19:21:07,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:21:07,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:21:07,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:21:07,253 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:21:07,253 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:21:07,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c Unable to find full path for "g++" [2024-11-08 19:21:09,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:21:09,685 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:21:09,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-11-08 19:21:09,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/data/98897f821/daeeb70b2964420dbb8eae4c186eefd9/FLAG349d65e85 [2024-11-08 19:21:09,780 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/data/98897f821/daeeb70b2964420dbb8eae4c186eefd9 [2024-11-08 19:21:09,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:21:09,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:21:09,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:21:09,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:21:09,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:21:09,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:21:09" (1/1) ... [2024-11-08 19:21:09,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128081a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:09, skipping insertion in model container [2024-11-08 19:21:09,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:21:09" (1/1) ... [2024-11-08 19:21:09,991 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:21:10,462 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_805df074-b4c1-4ea8-a818-6b6a0c3abe37/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2024-11-08 19:21:10,506 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_805df074-b4c1-4ea8-a818-6b6a0c3abe37/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2024-11-08 19:21:11,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:21:11,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:21:11,480 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_805df074-b4c1-4ea8-a818-6b6a0c3abe37/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2024-11-08 19:21:11,486 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_805df074-b4c1-4ea8-a818-6b6a0c3abe37/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2024-11-08 19:21:12,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:21:12,105 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:21:12,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12 WrapperNode [2024-11-08 19:21:12,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:21:12,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:21:12,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:21:12,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:21:12,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:12,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:12,592 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5291 [2024-11-08 19:21:12,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:21:12,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:21:12,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:21:12,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:21:12,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:12,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:12,650 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:12,906 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 19:21:12,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:12,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:13,120 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:13,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:13,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:13,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:13,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:21:13,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:21:13,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:21:13,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:21:13,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (1/1) ... [2024-11-08 19:21:13,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:21:13,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:21:13,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:21:13,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_805df074-b4c1-4ea8-a818-6b6a0c3abe37/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:21:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:21:13,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:21:13,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:21:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:21:13,585 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:21:13,589 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:21:19,479 INFO L? ?]: Removed 760 outVars from TransFormulas that were not future-live. [2024-11-08 19:21:19,480 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:21:19,530 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:21:19,531 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:21:19,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:21:19 BoogieIcfgContainer [2024-11-08 19:21:19,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:21:19,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:21:19,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:21:19,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:21:19,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:21:09" (1/3) ... [2024-11-08 19:21:19,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2e0cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:21:19, skipping insertion in model container [2024-11-08 19:21:19,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:12" (2/3) ... [2024-11-08 19:21:19,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2e0cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:21:19, skipping insertion in model container [2024-11-08 19:21:19,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:21:19" (3/3) ... [2024-11-08 19:21:19,544 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-11-08 19:21:19,562 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:21:19,562 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:21:19,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:21:19,658 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;@5f7b2558, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:21:19,659 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:21:19,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 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 19:21:19,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 19:21:19,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:19,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:19,679 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:19,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash -606221420, now seen corresponding path program 1 times [2024-11-08 19:21:19,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:19,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990965543] [2024-11-08 19:21:19,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:19,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:20,108 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 19:21:20,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:20,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990965543] [2024-11-08 19:21:20,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990965543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:20,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:20,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:21:20,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123105349] [2024-11-08 19:21:20,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:20,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:20,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:20,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:20,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:20,150 INFO L87 Difference]: Start difference. First operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 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 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 19:21:24,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:24,983 INFO L93 Difference]: Finished difference Result 2584 states and 4968 transitions. [2024-11-08 19:21:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:24,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2024-11-08 19:21:24,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:25,006 INFO L225 Difference]: With dead ends: 2584 [2024-11-08 19:21:25,006 INFO L226 Difference]: Without dead ends: 1633 [2024-11-08 19:21:25,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:21:25,016 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 1112 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:25,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 388 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 19:21:25,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-08 19:21:25,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2024-11-08 19:21:25,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1631 states have (on average 1.8418148375229921) internal successors, (3004), 1632 states have internal predecessors, (3004), 0 states have call successors, (0), 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 19:21:25,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 3004 transitions. [2024-11-08 19:21:25,163 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 3004 transitions. Word has length 16 [2024-11-08 19:21:25,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:25,163 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 3004 transitions. [2024-11-08 19:21:25,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 19:21:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 3004 transitions. [2024-11-08 19:21:25,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-08 19:21:25,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:25,167 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] [2024-11-08 19:21:25,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:21:25,169 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:25,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:25,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1796129413, now seen corresponding path program 1 times [2024-11-08 19:21:25,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:25,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098400070] [2024-11-08 19:21:25,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:25,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:25,537 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 19:21:25,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:25,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098400070] [2024-11-08 19:21:25,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098400070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:25,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:25,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:21:25,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003513964] [2024-11-08 19:21:25,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:25,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:21:25,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:21:25,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:21:25,542 INFO L87 Difference]: Start difference. First operand 1633 states and 3004 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 19:21:25,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:25,679 INFO L93 Difference]: Finished difference Result 1698 states and 3106 transitions. [2024-11-08 19:21:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:21:25,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2024-11-08 19:21:25,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:25,687 INFO L225 Difference]: With dead ends: 1698 [2024-11-08 19:21:25,687 INFO L226 Difference]: Without dead ends: 1633 [2024-11-08 19:21:25,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 19:21:25,690 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:25,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6586 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:21:25,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-08 19:21:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2024-11-08 19:21:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1631 states have (on average 1.804414469650521) internal successors, (2943), 1632 states have internal predecessors, (2943), 0 states have call successors, (0), 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 19:21:25,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2943 transitions. [2024-11-08 19:21:25,738 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2943 transitions. Word has length 31 [2024-11-08 19:21:25,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:25,738 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 2943 transitions. [2024-11-08 19:21:25,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 19:21:25,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2943 transitions. [2024-11-08 19:21:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 19:21:25,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:25,745 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:21:25,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:21:25,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:25,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:25,746 INFO L85 PathProgramCache]: Analyzing trace with hash 376778336, now seen corresponding path program 1 times [2024-11-08 19:21:25,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:25,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373288317] [2024-11-08 19:21:25,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:25,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:21:25,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:25,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373288317] [2024-11-08 19:21:25,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373288317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:25,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:25,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:21:25,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181119803] [2024-11-08 19:21:26,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:26,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:26,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:26,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:26,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:26,004 INFO L87 Difference]: Start difference. First operand 1633 states and 2943 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 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 19:21:30,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:30,177 INFO L93 Difference]: Finished difference Result 3888 states and 7058 transitions. [2024-11-08 19:21:30,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:30,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 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 19:21:30,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:30,187 INFO L225 Difference]: With dead ends: 3888 [2024-11-08 19:21:30,187 INFO L226 Difference]: Without dead ends: 2384 [2024-11-08 19:21:30,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:21:30,191 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 889 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2197 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 2764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 2197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:30,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 712 Invalid, 2764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 2197 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-08 19:21:30,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-11-08 19:21:30,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2384. [2024-11-08 19:21:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2382 states have (on average 1.616288832913518) internal successors, (3850), 2383 states have internal predecessors, (3850), 0 states have call successors, (0), 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 19:21:30,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3850 transitions. [2024-11-08 19:21:30,251 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3850 transitions. Word has length 85 [2024-11-08 19:21:30,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:30,256 INFO L471 AbstractCegarLoop]: Abstraction has 2384 states and 3850 transitions. [2024-11-08 19:21:30,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 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 19:21:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3850 transitions. [2024-11-08 19:21:30,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 19:21:30,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:30,259 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:21:30,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:21:30,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:30,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:30,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1625597541, now seen corresponding path program 1 times [2024-11-08 19:21:30,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:30,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125651928] [2024-11-08 19:21:30,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:30,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:21:30,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:30,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125651928] [2024-11-08 19:21:30,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125651928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:30,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:30,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:30,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103837559] [2024-11-08 19:21:30,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:30,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:30,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:30,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:30,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:30,487 INFO L87 Difference]: Start difference. First operand 2384 states and 3850 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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 19:21:34,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:34,746 INFO L93 Difference]: Finished difference Result 6892 states and 11215 transitions. [2024-11-08 19:21:34,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:34,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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 19:21:34,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:34,763 INFO L225 Difference]: With dead ends: 6892 [2024-11-08 19:21:34,763 INFO L226 Difference]: Without dead ends: 4637 [2024-11-08 19:21:34,766 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 19:21:34,768 INFO L432 NwaCegarLoop]: 1235 mSDtfsCounter, 762 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:34,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1408 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-08 19:21:34,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2024-11-08 19:21:34,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4637. [2024-11-08 19:21:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 4635 states have (on average 1.5277238403451996) internal successors, (7081), 4636 states have internal predecessors, (7081), 0 states have call successors, (0), 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 19:21:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 7081 transitions. [2024-11-08 19:21:34,891 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 7081 transitions. Word has length 87 [2024-11-08 19:21:34,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:34,892 INFO L471 AbstractCegarLoop]: Abstraction has 4637 states and 7081 transitions. [2024-11-08 19:21:34,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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 19:21:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 7081 transitions. [2024-11-08 19:21:34,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 19:21:34,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:34,895 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, 1, 1] [2024-11-08 19:21:34,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:21:34,896 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:34,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:34,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1427591851, now seen corresponding path program 1 times [2024-11-08 19:21:34,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:34,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230472053] [2024-11-08 19:21:34,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:34,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:35,447 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 19:21:35,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:35,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230472053] [2024-11-08 19:21:35,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230472053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:35,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:35,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:21:35,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253494949] [2024-11-08 19:21:35,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:35,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:21:35,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:35,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:21:35,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:21:35,454 INFO L87 Difference]: Start difference. First operand 4637 states and 7081 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 19:21:36,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:36,272 INFO L93 Difference]: Finished difference Result 5613 states and 8649 transitions. [2024-11-08 19:21:36,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:21:36,273 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-08 19:21:36,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:36,292 INFO L225 Difference]: With dead ends: 5613 [2024-11-08 19:21:36,293 INFO L226 Difference]: Without dead ends: 5552 [2024-11-08 19:21:36,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:21:36,297 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 13388 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13388 SdHoareTripleChecker+Valid, 6444 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:36,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13388 Valid, 6444 Invalid, 374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:21:36,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2024-11-08 19:21:36,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 4696. [2024-11-08 19:21:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4696 states, 4694 states have (on average 1.5287601193012357) internal successors, (7176), 4695 states have internal predecessors, (7176), 0 states have call successors, (0), 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 19:21:36,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4696 states to 4696 states and 7176 transitions. [2024-11-08 19:21:36,435 INFO L78 Accepts]: Start accepts. Automaton has 4696 states and 7176 transitions. Word has length 91 [2024-11-08 19:21:36,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:36,435 INFO L471 AbstractCegarLoop]: Abstraction has 4696 states and 7176 transitions. [2024-11-08 19:21:36,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 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 19:21:36,436 INFO L276 IsEmpty]: Start isEmpty. Operand 4696 states and 7176 transitions. [2024-11-08 19:21:36,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 19:21:36,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:36,438 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, 1, 1, 1, 1, 1] [2024-11-08 19:21:36,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:21:36,439 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:36,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:36,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1058077381, now seen corresponding path program 1 times [2024-11-08 19:21:36,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:36,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401134575] [2024-11-08 19:21:36,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:36,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:36,594 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 19:21:36,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:36,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401134575] [2024-11-08 19:21:36,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401134575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:36,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:36,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:36,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819782676] [2024-11-08 19:21:36,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:36,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:36,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:36,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:36,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:36,599 INFO L87 Difference]: Start difference. First operand 4696 states and 7176 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 19:21:36,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:36,650 INFO L93 Difference]: Finished difference Result 4925 states and 7543 transitions. [2024-11-08 19:21:36,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-08 19:21:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:36,670 INFO L225 Difference]: With dead ends: 4925 [2024-11-08 19:21:36,670 INFO L226 Difference]: Without dead ends: 4805 [2024-11-08 19:21:36,672 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 19:21:36,673 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1506 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1695 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 19:21:36,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:36,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2024-11-08 19:21:36,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4803. [2024-11-08 19:21:36,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4803 states, 4801 states have (on average 1.53009789627161) internal successors, (7346), 4802 states have internal predecessors, (7346), 0 states have call successors, (0), 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 19:21:36,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 7346 transitions. [2024-11-08 19:21:36,776 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 7346 transitions. Word has length 93 [2024-11-08 19:21:36,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:36,776 INFO L471 AbstractCegarLoop]: Abstraction has 4803 states and 7346 transitions. [2024-11-08 19:21:36,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 19:21:36,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 7346 transitions. [2024-11-08 19:21:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 19:21:36,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:36,778 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, 1, 1, 1, 1] [2024-11-08 19:21:36,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:21:36,779 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:36,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:36,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1124570893, now seen corresponding path program 1 times [2024-11-08 19:21:36,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:36,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705073206] [2024-11-08 19:21:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:37,493 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 19:21:37,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:37,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705073206] [2024-11-08 19:21:37,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705073206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:37,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:37,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:21:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982789923] [2024-11-08 19:21:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:37,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:21:37,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:37,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:21:37,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:21:37,497 INFO L87 Difference]: Start difference. First operand 4803 states and 7346 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 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 19:21:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:38,126 INFO L93 Difference]: Finished difference Result 5032 states and 7710 transitions. [2024-11-08 19:21:38,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:21:38,127 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-08 19:21:38,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:38,152 INFO L225 Difference]: With dead ends: 5032 [2024-11-08 19:21:38,153 INFO L226 Difference]: Without dead ends: 4805 [2024-11-08 19:21:38,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:21:38,162 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 7614 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7614 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:38,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7614 Valid, 2265 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:21:38,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2024-11-08 19:21:38,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4803. [2024-11-08 19:21:38,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4803 states, 4801 states have (on average 1.5296813163924183) internal successors, (7344), 4802 states have internal predecessors, (7344), 0 states have call successors, (0), 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 19:21:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 7344 transitions. [2024-11-08 19:21:38,272 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 7344 transitions. Word has length 93 [2024-11-08 19:21:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:38,273 INFO L471 AbstractCegarLoop]: Abstraction has 4803 states and 7344 transitions. [2024-11-08 19:21:38,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 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 19:21:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 7344 transitions. [2024-11-08 19:21:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 19:21:38,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:38,275 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:21:38,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:21:38,275 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:38,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash 125331060, now seen corresponding path program 1 times [2024-11-08 19:21:38,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:38,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514790227] [2024-11-08 19:21:38,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:38,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:21:38,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:38,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514790227] [2024-11-08 19:21:38,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514790227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:38,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:38,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530575302] [2024-11-08 19:21:38,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:38,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:21:38,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:38,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:21:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:21:38,551 INFO L87 Difference]: Start difference. First operand 4803 states and 7344 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 19:21:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:44,490 INFO L93 Difference]: Finished difference Result 10062 states and 15165 transitions. [2024-11-08 19:21:44,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:21:44,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-08 19:21:44,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:44,503 INFO L225 Difference]: With dead ends: 10062 [2024-11-08 19:21:44,503 INFO L226 Difference]: Without dead ends: 5554 [2024-11-08 19:21:44,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:21:44,509 INFO L432 NwaCegarLoop]: 652 mSDtfsCounter, 2511 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 5229 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 5761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 5229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:44,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 669 Invalid, 5761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 5229 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-08 19:21:44,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5554 states. [2024-11-08 19:21:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5554 to 5554. [2024-11-08 19:21:44,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5554 states, 5552 states have (on average 1.4320965417867435) internal successors, (7951), 5553 states have internal predecessors, (7951), 0 states have call successors, (0), 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 19:21:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5554 states to 5554 states and 7951 transitions. [2024-11-08 19:21:44,631 INFO L78 Accepts]: Start accepts. Automaton has 5554 states and 7951 transitions. Word has length 93 [2024-11-08 19:21:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:44,631 INFO L471 AbstractCegarLoop]: Abstraction has 5554 states and 7951 transitions. [2024-11-08 19:21:44,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 19:21:44,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5554 states and 7951 transitions. [2024-11-08 19:21:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:21:44,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:44,637 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, 1, 1, 1, 1, 1] [2024-11-08 19:21:44,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:21:44,637 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:44,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:44,638 INFO L85 PathProgramCache]: Analyzing trace with hash 87236494, now seen corresponding path program 1 times [2024-11-08 19:21:44,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:44,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351553307] [2024-11-08 19:21:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:44,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:45,026 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 19:21:45,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:45,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351553307] [2024-11-08 19:21:45,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351553307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:45,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:45,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:21:45,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039630891] [2024-11-08 19:21:45,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:45,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:21:45,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:45,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:21:45,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:21:45,029 INFO L87 Difference]: Start difference. First operand 5554 states and 7951 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:21:45,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:45,089 INFO L93 Difference]: Finished difference Result 5562 states and 7960 transitions. [2024-11-08 19:21:45,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:21:45,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-08 19:21:45,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:45,100 INFO L225 Difference]: With dead ends: 5562 [2024-11-08 19:21:45,101 INFO L226 Difference]: Without dead ends: 5560 [2024-11-08 19:21:45,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 19:21:45,104 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:45,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6395 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:45,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5560 states. [2024-11-08 19:21:45,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5560 to 5560. [2024-11-08 19:21:45,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5560 states, 5558 states have (on average 1.4314501619287514) internal successors, (7956), 5559 states have internal predecessors, (7956), 0 states have call successors, (0), 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 19:21:45,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 7956 transitions. [2024-11-08 19:21:45,192 INFO L78 Accepts]: Start accepts. Automaton has 5560 states and 7956 transitions. Word has length 94 [2024-11-08 19:21:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:45,193 INFO L471 AbstractCegarLoop]: Abstraction has 5560 states and 7956 transitions. [2024-11-08 19:21:45,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:21:45,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5560 states and 7956 transitions. [2024-11-08 19:21:45,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:21:45,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:45,194 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, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:45,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:21:45,195 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:45,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:45,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1340192755, now seen corresponding path program 1 times [2024-11-08 19:21:45,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:45,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393903484] [2024-11-08 19:21:45,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:45,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:45,315 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 19:21:45,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:45,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393903484] [2024-11-08 19:21:45,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393903484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:45,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:45,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:45,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725425270] [2024-11-08 19:21:45,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:45,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:45,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:45,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:45,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:45,317 INFO L87 Difference]: Start difference. First operand 5560 states and 7956 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:45,374 INFO L93 Difference]: Finished difference Result 5807 states and 8342 transitions. [2024-11-08 19:21:45,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:45,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-08 19:21:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:45,385 INFO L225 Difference]: With dead ends: 5807 [2024-11-08 19:21:45,386 INFO L226 Difference]: Without dead ends: 5681 [2024-11-08 19:21:45,388 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 19:21:45,388 INFO L432 NwaCegarLoop]: 1686 mSDtfsCounter, 1526 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:45,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:45,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5681 states. [2024-11-08 19:21:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5681 to 5679. [2024-11-08 19:21:45,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5679 states, 5677 states have (on average 1.4338559098115202) internal successors, (8140), 5678 states have internal predecessors, (8140), 0 states have call successors, (0), 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 19:21:45,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 8140 transitions. [2024-11-08 19:21:45,481 INFO L78 Accepts]: Start accepts. Automaton has 5679 states and 8140 transitions. Word has length 95 [2024-11-08 19:21:45,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:45,482 INFO L471 AbstractCegarLoop]: Abstraction has 5679 states and 8140 transitions. [2024-11-08 19:21:45,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:45,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5679 states and 8140 transitions. [2024-11-08 19:21:45,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:21:45,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:45,484 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, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:45,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:21:45,484 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:45,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:45,485 INFO L85 PathProgramCache]: Analyzing trace with hash 972794125, now seen corresponding path program 1 times [2024-11-08 19:21:45,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:45,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687307982] [2024-11-08 19:21:45,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:45,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:45,676 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 19:21:45,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:45,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687307982] [2024-11-08 19:21:45,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687307982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:45,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:45,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:45,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300954542] [2024-11-08 19:21:45,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:45,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:45,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:45,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:45,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:45,679 INFO L87 Difference]: Start difference. First operand 5679 states and 8140 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:45,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:45,739 INFO L93 Difference]: Finished difference Result 6353 states and 9192 transitions. [2024-11-08 19:21:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:45,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-08 19:21:45,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:45,751 INFO L225 Difference]: With dead ends: 6353 [2024-11-08 19:21:45,751 INFO L226 Difference]: Without dead ends: 6004 [2024-11-08 19:21:45,753 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 19:21:45,754 INFO L432 NwaCegarLoop]: 1688 mSDtfsCounter, 1524 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:45,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:45,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2024-11-08 19:21:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 6002. [2024-11-08 19:21:45,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6002 states, 6000 states have (on average 1.4396666666666667) internal successors, (8638), 6001 states have internal predecessors, (8638), 0 states have call successors, (0), 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 19:21:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6002 states to 6002 states and 8638 transitions. [2024-11-08 19:21:45,857 INFO L78 Accepts]: Start accepts. Automaton has 6002 states and 8638 transitions. Word has length 95 [2024-11-08 19:21:45,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:45,858 INFO L471 AbstractCegarLoop]: Abstraction has 6002 states and 8638 transitions. [2024-11-08 19:21:45,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:45,859 INFO L276 IsEmpty]: Start isEmpty. Operand 6002 states and 8638 transitions. [2024-11-08 19:21:45,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:21:45,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:45,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:45,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:21:45,860 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:45,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:45,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1217189107, now seen corresponding path program 1 times [2024-11-08 19:21:45,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:45,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226760096] [2024-11-08 19:21:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:45,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:45,978 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 19:21:45,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:45,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226760096] [2024-11-08 19:21:45,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226760096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:45,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:45,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:45,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870285288] [2024-11-08 19:21:45,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:45,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:45,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:45,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:45,981 INFO L87 Difference]: Start difference. First operand 6002 states and 8638 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:46,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:46,046 INFO L93 Difference]: Finished difference Result 7298 states and 10644 transitions. [2024-11-08 19:21:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:46,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-08 19:21:46,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:46,058 INFO L225 Difference]: With dead ends: 7298 [2024-11-08 19:21:46,058 INFO L226 Difference]: Without dead ends: 6626 [2024-11-08 19:21:46,060 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 19:21:46,061 INFO L432 NwaCegarLoop]: 1676 mSDtfsCounter, 1520 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:46,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:46,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6626 states. [2024-11-08 19:21:46,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6626 to 6624. [2024-11-08 19:21:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6624 states, 6622 states have (on average 1.4475989127151918) internal successors, (9586), 6623 states have internal predecessors, (9586), 0 states have call successors, (0), 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 19:21:46,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 9586 transitions. [2024-11-08 19:21:46,185 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 9586 transitions. Word has length 95 [2024-11-08 19:21:46,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:46,185 INFO L471 AbstractCegarLoop]: Abstraction has 6624 states and 9586 transitions. [2024-11-08 19:21:46,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:46,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 9586 transitions. [2024-11-08 19:21:46,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:21:46,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:46,187 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, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:46,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:21:46,187 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:46,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash -953332723, now seen corresponding path program 1 times [2024-11-08 19:21:46,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:46,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390282150] [2024-11-08 19:21:46,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:46,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:46,289 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 19:21:46,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:46,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390282150] [2024-11-08 19:21:46,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390282150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:46,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:46,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:46,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296062713] [2024-11-08 19:21:46,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:46,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:46,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:46,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:46,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:46,292 INFO L87 Difference]: Start difference. First operand 6624 states and 9586 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:46,383 INFO L93 Difference]: Finished difference Result 9116 states and 13404 transitions. [2024-11-08 19:21:46,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:46,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-08 19:21:46,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:46,398 INFO L225 Difference]: With dead ends: 9116 [2024-11-08 19:21:46,398 INFO L226 Difference]: Without dead ends: 7822 [2024-11-08 19:21:46,402 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 19:21:46,402 INFO L432 NwaCegarLoop]: 1674 mSDtfsCounter, 1518 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:46,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:46,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7822 states. [2024-11-08 19:21:46,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7822 to 7820. [2024-11-08 19:21:46,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7820 states, 7818 states have (on average 1.4563827065745716) internal successors, (11386), 7819 states have internal predecessors, (11386), 0 states have call successors, (0), 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 19:21:46,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7820 states to 7820 states and 11386 transitions. [2024-11-08 19:21:46,564 INFO L78 Accepts]: Start accepts. Automaton has 7820 states and 11386 transitions. Word has length 95 [2024-11-08 19:21:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:46,565 INFO L471 AbstractCegarLoop]: Abstraction has 7820 states and 11386 transitions. [2024-11-08 19:21:46,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:46,565 INFO L276 IsEmpty]: Start isEmpty. Operand 7820 states and 11386 transitions. [2024-11-08 19:21:46,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:21:46,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:46,567 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, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:46,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:21:46,567 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:46,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash 284929293, now seen corresponding path program 1 times [2024-11-08 19:21:46,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:46,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364155108] [2024-11-08 19:21:46,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:46,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:46,679 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 19:21:46,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:46,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364155108] [2024-11-08 19:21:46,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364155108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:46,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:46,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:46,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116430483] [2024-11-08 19:21:46,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:46,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:46,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:46,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:46,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:46,681 INFO L87 Difference]: Start difference. First operand 7820 states and 11386 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:46,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:46,822 INFO L93 Difference]: Finished difference Result 12608 states and 18636 transitions. [2024-11-08 19:21:46,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:46,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-08 19:21:46,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:46,841 INFO L225 Difference]: With dead ends: 12608 [2024-11-08 19:21:46,841 INFO L226 Difference]: Without dead ends: 10118 [2024-11-08 19:21:46,846 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 19:21:46,847 INFO L432 NwaCegarLoop]: 1672 mSDtfsCounter, 1516 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:46,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:46,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2024-11-08 19:21:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 10116. [2024-11-08 19:21:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10116 states, 10114 states have (on average 1.4627249357326477) internal successors, (14794), 10115 states have internal predecessors, (14794), 0 states have call successors, (0), 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 19:21:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10116 states to 10116 states and 14794 transitions. [2024-11-08 19:21:47,066 INFO L78 Accepts]: Start accepts. Automaton has 10116 states and 14794 transitions. Word has length 95 [2024-11-08 19:21:47,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:47,066 INFO L471 AbstractCegarLoop]: Abstraction has 10116 states and 14794 transitions. [2024-11-08 19:21:47,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:47,066 INFO L276 IsEmpty]: Start isEmpty. Operand 10116 states and 14794 transitions. [2024-11-08 19:21:47,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:21:47,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:47,068 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, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:47,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:21:47,068 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:47,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:47,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1930539507, now seen corresponding path program 1 times [2024-11-08 19:21:47,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:47,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552893263] [2024-11-08 19:21:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:47,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:47,262 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 19:21:47,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:47,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552893263] [2024-11-08 19:21:47,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552893263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:47,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:47,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:47,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666017863] [2024-11-08 19:21:47,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:47,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:47,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:47,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:47,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:47,265 INFO L87 Difference]: Start difference. First operand 10116 states and 14794 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:47,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:47,592 INFO L93 Difference]: Finished difference Result 19304 states and 28524 transitions. [2024-11-08 19:21:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:47,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-08 19:21:47,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:47,623 INFO L225 Difference]: With dead ends: 19304 [2024-11-08 19:21:47,623 INFO L226 Difference]: Without dead ends: 14518 [2024-11-08 19:21:47,633 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 19:21:47,634 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 1514 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:47,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14518 states. [2024-11-08 19:21:47,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14518 to 14516. [2024-11-08 19:21:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14516 states, 14514 states have (on average 1.462450048229296) internal successors, (21226), 14515 states have internal predecessors, (21226), 0 states have call successors, (0), 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 19:21:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14516 states to 14516 states and 21226 transitions. [2024-11-08 19:21:48,012 INFO L78 Accepts]: Start accepts. Automaton has 14516 states and 21226 transitions. Word has length 95 [2024-11-08 19:21:48,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:48,012 INFO L471 AbstractCegarLoop]: Abstraction has 14516 states and 21226 transitions. [2024-11-08 19:21:48,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:48,012 INFO L276 IsEmpty]: Start isEmpty. Operand 14516 states and 21226 transitions. [2024-11-08 19:21:48,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:21:48,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:48,014 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, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:48,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:21:48,014 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:48,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash -149606643, now seen corresponding path program 1 times [2024-11-08 19:21:48,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:48,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243527482] [2024-11-08 19:21:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:48,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:48,115 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 19:21:48,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:48,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243527482] [2024-11-08 19:21:48,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243527482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:48,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:48,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:48,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195194117] [2024-11-08 19:21:48,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:48,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:48,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:48,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:48,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:48,118 INFO L87 Difference]: Start difference. First operand 14516 states and 21226 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:48,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:48,500 INFO L93 Difference]: Finished difference Result 32120 states and 47148 transitions. [2024-11-08 19:21:48,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:48,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-08 19:21:48,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:48,544 INFO L225 Difference]: With dead ends: 32120 [2024-11-08 19:21:48,545 INFO L226 Difference]: Without dead ends: 22934 [2024-11-08 19:21:48,557 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 19:21:48,558 INFO L432 NwaCegarLoop]: 1668 mSDtfsCounter, 1512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:48,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1795 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:48,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22934 states. [2024-11-08 19:21:49,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22934 to 22932. [2024-11-08 19:21:49,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22932 states, 22930 states have (on average 1.4532054077627563) internal successors, (33322), 22931 states have internal predecessors, (33322), 0 states have call successors, (0), 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 19:21:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22932 states to 22932 states and 33322 transitions. [2024-11-08 19:21:49,243 INFO L78 Accepts]: Start accepts. Automaton has 22932 states and 33322 transitions. Word has length 95 [2024-11-08 19:21:49,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:49,244 INFO L471 AbstractCegarLoop]: Abstraction has 22932 states and 33322 transitions. [2024-11-08 19:21:49,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand 22932 states and 33322 transitions. [2024-11-08 19:21:49,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 19:21:49,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:49,245 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, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:49,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:21:49,246 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:49,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:49,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1380103667, now seen corresponding path program 1 times [2024-11-08 19:21:49,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:49,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749102142] [2024-11-08 19:21:49,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:49,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:49,345 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 19:21:49,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:49,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749102142] [2024-11-08 19:21:49,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749102142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:49,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:49,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:21:49,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046109653] [2024-11-08 19:21:49,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:49,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:21:49,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:49,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:21:49,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:21:49,347 INFO L87 Difference]: Start difference. First operand 22932 states and 33322 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:50,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:50,069 INFO L93 Difference]: Finished difference Result 56600 states and 82092 transitions. [2024-11-08 19:21:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:21:50,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-08 19:21:50,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:50,147 INFO L225 Difference]: With dead ends: 56600 [2024-11-08 19:21:50,147 INFO L226 Difference]: Without dead ends: 38998 [2024-11-08 19:21:50,322 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 19:21:50,322 INFO L432 NwaCegarLoop]: 1686 mSDtfsCounter, 1522 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:50,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:21:50,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38998 states. [2024-11-08 19:21:51,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38998 to 38996. [2024-11-08 19:21:51,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38996 states, 38994 states have (on average 1.4355541878237679) internal successors, (55978), 38995 states have internal predecessors, (55978), 0 states have call successors, (0), 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 19:21:51,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38996 states to 38996 states and 55978 transitions. [2024-11-08 19:21:51,286 INFO L78 Accepts]: Start accepts. Automaton has 38996 states and 55978 transitions. Word has length 95 [2024-11-08 19:21:51,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:21:51,287 INFO L471 AbstractCegarLoop]: Abstraction has 38996 states and 55978 transitions. [2024-11-08 19:21:51,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 19:21:51,287 INFO L276 IsEmpty]: Start isEmpty. Operand 38996 states and 55978 transitions. [2024-11-08 19:21:51,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 19:21:51,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:51,295 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:21:51,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:21:51,296 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:21:51,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:51,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1461207229, now seen corresponding path program 1 times [2024-11-08 19:21:51,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:51,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714886877] [2024-11-08 19:21:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:51,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:21:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 19:21:51,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:21:51,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714886877] [2024-11-08 19:21:51,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714886877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:21:51,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:21:51,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:21:51,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604203483] [2024-11-08 19:21:51,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:21:51,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:21:51,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:21:51,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:21:51,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:21:51,825 INFO L87 Difference]: Start difference. First operand 38996 states and 55978 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 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 19:21:56,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:21:56,626 INFO L93 Difference]: Finished difference Result 304998 states and 438067 transitions. [2024-11-08 19:21:56,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:21:56,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 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 121 [2024-11-08 19:21:56,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:21:57,037 INFO L225 Difference]: With dead ends: 304998 [2024-11-08 19:21:57,038 INFO L226 Difference]: Without dead ends: 281444 [2024-11-08 19:21:57,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:21:57,098 INFO L432 NwaCegarLoop]: 1703 mSDtfsCounter, 11721 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11721 SdHoareTripleChecker+Valid, 5274 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:21:57,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11721 Valid, 5274 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:21:57,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281444 states. [2024-11-08 19:22:01,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281444 to 67668. [2024-11-08 19:22:01,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67668 states, 67666 states have (on average 1.4307037507758698) internal successors, (96810), 67667 states have internal predecessors, (96810), 0 states have call successors, (0), 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 19:22:01,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67668 states to 67668 states and 96810 transitions. [2024-11-08 19:22:01,230 INFO L78 Accepts]: Start accepts. Automaton has 67668 states and 96810 transitions. Word has length 121 [2024-11-08 19:22:01,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:22:01,231 INFO L471 AbstractCegarLoop]: Abstraction has 67668 states and 96810 transitions. [2024-11-08 19:22:01,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 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 19:22:01,231 INFO L276 IsEmpty]: Start isEmpty. Operand 67668 states and 96810 transitions. [2024-11-08 19:22:01,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 19:22:01,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:22:01,246 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:22:01,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 19:22:01,247 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:22:01,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:22:01,248 INFO L85 PathProgramCache]: Analyzing trace with hash 851779651, now seen corresponding path program 1 times [2024-11-08 19:22:01,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:22:01,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960698314] [2024-11-08 19:22:01,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:22:01,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:22:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:22:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:22:01,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:22:01,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960698314] [2024-11-08 19:22:01,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960698314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:22:01,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:22:01,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:22:01,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415534013] [2024-11-08 19:22:01,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:22:01,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:22:01,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:22:01,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:22:01,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:22:01,849 INFO L87 Difference]: Start difference. First operand 67668 states and 96810 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:22:08,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:22:08,840 INFO L93 Difference]: Finished difference Result 338662 states and 486195 transitions. [2024-11-08 19:22:08,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:22:08,841 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-08 19:22:08,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:22:09,344 INFO L225 Difference]: With dead ends: 338662 [2024-11-08 19:22:09,344 INFO L226 Difference]: Without dead ends: 304996 [2024-11-08 19:22:09,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:22:09,411 INFO L432 NwaCegarLoop]: 1702 mSDtfsCounter, 11721 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11721 SdHoareTripleChecker+Valid, 5248 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:22:09,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11721 Valid, 5248 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:22:09,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304996 states. [2024-11-08 19:22:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304996 to 113108. [2024-11-08 19:22:14,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113108 states, 113106 states have (on average 1.4274220642583064) internal successors, (161450), 113107 states have internal predecessors, (161450), 0 states have call successors, (0), 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 19:22:14,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113108 states to 113108 states and 161450 transitions. [2024-11-08 19:22:14,807 INFO L78 Accepts]: Start accepts. Automaton has 113108 states and 161450 transitions. Word has length 121 [2024-11-08 19:22:14,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:22:14,808 INFO L471 AbstractCegarLoop]: Abstraction has 113108 states and 161450 transitions. [2024-11-08 19:22:14,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:22:14,808 INFO L276 IsEmpty]: Start isEmpty. Operand 113108 states and 161450 transitions. [2024-11-08 19:22:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 19:22:14,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:22:14,822 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 19:22:14,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 19:22:14,822 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:22:14,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:22:14,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1338203581, now seen corresponding path program 1 times [2024-11-08 19:22:14,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:22:14,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373376789] [2024-11-08 19:22:14,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:22:14,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:22:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:22:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 19:22:15,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:22:15,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373376789] [2024-11-08 19:22:15,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373376789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:22:15,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:22:15,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:22:15,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045016473] [2024-11-08 19:22:15,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:22:15,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:22:15,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:22:15,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:22:15,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:22:15,516 INFO L87 Difference]: Start difference. First operand 113108 states and 161450 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 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 19:22:23,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:22:23,899 INFO L93 Difference]: Finished difference Result 372326 states and 534195 transitions. [2024-11-08 19:22:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:22:23,900 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 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 121 [2024-11-08 19:22:23,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:22:24,375 INFO L225 Difference]: With dead ends: 372326 [2024-11-08 19:22:24,375 INFO L226 Difference]: Without dead ends: 338660 [2024-11-08 19:22:24,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:22:24,449 INFO L432 NwaCegarLoop]: 1700 mSDtfsCounter, 11767 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11767 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:22:24,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11767 Valid, 5233 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:22:24,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338660 states.