./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/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_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/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_15898b60-c747-47a2-82c0-1d3121ad4bc9/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 4d62395951f99c0a3c43b690318a4d5480f589d72fceef9ee8ca741a4c7ef736 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:07:05,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:07:05,880 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:07:05,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:07:05,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:07:05,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:07:05,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:07:05,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:07:05,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:07:05,917 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:07:05,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:07:05,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:07:05,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:07:05,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:07:05,920 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:07:05,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:07:05,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:07:05,922 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:07:05,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:07:05,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:07:05,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:07:05,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:07:05,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:07:05,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:07:05,926 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:07:05,926 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:07:05,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:07:05,927 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:07:05,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:07:05,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:07:05,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:07:05,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:07:05,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:07:05,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:07:05,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:07:05,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:07:05,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:07:05,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:07:05,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:07:05,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:07:05,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:07:05,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:07:05,942 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_15898b60-c747-47a2-82c0-1d3121ad4bc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d62395951f99c0a3c43b690318a4d5480f589d72fceef9ee8ca741a4c7ef736 [2024-11-08 19:07:06,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:07:06,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:07:06,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:07:06,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:07:06,333 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:07:06,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c Unable to find full path for "g++" [2024-11-08 19:07:09,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:07:09,674 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:07:09,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-11-08 19:07:09,735 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/data/f50c5610a/a20f6bc9e66f492491e30426afb6582c/FLAG601db934a [2024-11-08 19:07:09,760 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/data/f50c5610a/a20f6bc9e66f492491e30426afb6582c [2024-11-08 19:07:09,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:07:09,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:07:09,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:07:09,769 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:07:09,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:07:09,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:07:09" (1/1) ... [2024-11-08 19:07:09,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656b23be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:09, skipping insertion in model container [2024-11-08 19:07:09,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:07:09" (1/1) ... [2024-11-08 19:07:09,963 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:07:10,559 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_15898b60-c747-47a2-82c0-1d3121ad4bc9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c[26888,26901] [2024-11-08 19:07:10,614 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_15898b60-c747-47a2-82c0-1d3121ad4bc9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c[27730,27743] [2024-11-08 19:07:12,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:07:12,022 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:07:12,115 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_15898b60-c747-47a2-82c0-1d3121ad4bc9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c[26888,26901] [2024-11-08 19:07:12,123 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_15898b60-c747-47a2-82c0-1d3121ad4bc9/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c[27730,27743] [2024-11-08 19:07:12,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:07:13,022 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:07:13,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13 WrapperNode [2024-11-08 19:07:13,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:07:13,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:07:13,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:07:13,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:07:13,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:13,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:13,669 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5289 [2024-11-08 19:07:13,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:07:13,671 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:07:13,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:07:13,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:07:13,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:13,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:13,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:14,024 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 19:07:14,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:14,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:14,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:14,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:14,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:14,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:14,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:07:14,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:07:14,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:07:14,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:07:14,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (1/1) ... [2024-11-08 19:07:14,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:07:14,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:14,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:07:14,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15898b60-c747-47a2-82c0-1d3121ad4bc9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:07:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:07:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:07:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:07:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:07:14,829 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:07:14,832 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:07:22,333 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-08 19:07:22,333 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:07:22,394 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:07:22,398 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 19:07:22,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:07:22 BoogieIcfgContainer [2024-11-08 19:07:22,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:07:22,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:07:22,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:07:22,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:07:22,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:07:09" (1/3) ... [2024-11-08 19:07:22,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e85cb3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:07:22, skipping insertion in model container [2024-11-08 19:07:22,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:07:13" (2/3) ... [2024-11-08 19:07:22,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e85cb3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:07:22, skipping insertion in model container [2024-11-08 19:07:22,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:07:22" (3/3) ... [2024-11-08 19:07:22,419 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label07.c [2024-11-08 19:07:22,443 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:07:22,444 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:07:22,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:07:22,631 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;@41bed128, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:07:22,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:07:22,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 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 19:07:22,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 19:07:22,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:22,682 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:22,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:22,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:22,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1870531854, now seen corresponding path program 1 times [2024-11-08 19:07:22,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:22,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123058904] [2024-11-08 19:07:22,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:22,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:23,215 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 19:07:23,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:23,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123058904] [2024-11-08 19:07:23,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123058904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:23,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:23,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:07:23,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826292664] [2024-11-08 19:07:23,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:23,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:07:23,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:23,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:07:23,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:07:23,271 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 19:07:29,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:29,474 INFO L93 Difference]: Finished difference Result 2584 states and 4970 transitions. [2024-11-08 19:07:29,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:07:29,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2024-11-08 19:07:29,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:29,523 INFO L225 Difference]: With dead ends: 2584 [2024-11-08 19:07:29,523 INFO L226 Difference]: Without dead ends: 1634 [2024-11-08 19:07:29,536 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 19:07:29,540 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 1056 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:29,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 711 Invalid, 2985 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-08 19:07:29,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-08 19:07:29,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-11-08 19:07:29,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.650735294117647) internal successors, (2694), 1633 states have internal predecessors, (2694), 0 states have call successors, (0), 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 19:07:29,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2694 transitions. [2024-11-08 19:07:29,715 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2694 transitions. Word has length 7 [2024-11-08 19:07:29,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:29,716 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2694 transitions. [2024-11-08 19:07:29,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 19:07:29,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2694 transitions. [2024-11-08 19:07:29,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 19:07:29,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:29,719 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] [2024-11-08 19:07:29,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:07:29,720 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:29,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1435866643, now seen corresponding path program 1 times [2024-11-08 19:07:29,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:29,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806660956] [2024-11-08 19:07:29,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:29,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:30,178 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 19:07:30,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:30,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806660956] [2024-11-08 19:07:30,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806660956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:30,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:30,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:07:30,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235296067] [2024-11-08 19:07:30,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:30,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:07:30,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:30,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:07:30,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:07:30,189 INFO L87 Difference]: Start difference. First operand 1634 states and 2694 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 19:07:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:30,361 INFO L93 Difference]: Finished difference Result 1700 states and 2798 transitions. [2024-11-08 19:07:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:07:30,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-08 19:07:30,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:30,371 INFO L225 Difference]: With dead ends: 1700 [2024-11-08 19:07:30,372 INFO L226 Difference]: Without dead ends: 1634 [2024-11-08 19:07:30,374 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 19:07:30,375 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 0 mSDsluCounter, 4929 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6594 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 19:07:30,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6594 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:07:30,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-08 19:07:30,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-11-08 19:07:30,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.6133578431372548) internal successors, (2633), 1633 states have internal predecessors, (2633), 0 states have call successors, (0), 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 19:07:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2633 transitions. [2024-11-08 19:07:30,425 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2633 transitions. Word has length 30 [2024-11-08 19:07:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:30,426 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2633 transitions. [2024-11-08 19:07:30,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 19:07:30,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2633 transitions. [2024-11-08 19:07:30,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 19:07:30,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:30,436 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:30,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:07:30,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:30,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:30,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1002168708, now seen corresponding path program 1 times [2024-11-08 19:07:30,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:30,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511119681] [2024-11-08 19:07:30,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:30,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:30,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:30,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:30,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511119681] [2024-11-08 19:07:30,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511119681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:30,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:30,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:07:30,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433072579] [2024-11-08 19:07:30,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:30,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:07:30,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:30,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:07:30,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:07:30,715 INFO L87 Difference]: Start difference. First operand 1634 states and 2633 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:36,642 INFO L93 Difference]: Finished difference Result 4640 states and 7560 transitions. [2024-11-08 19:07:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:07:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-08 19:07:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:36,658 INFO L225 Difference]: With dead ends: 4640 [2024-11-08 19:07:36,659 INFO L226 Difference]: Without dead ends: 3136 [2024-11-08 19:07:36,665 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 19:07:36,667 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 762 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:36,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1491 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-08 19:07:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2024-11-08 19:07:36,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3136. [2024-11-08 19:07:36,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3134 states have (on average 1.5280791320995533) internal successors, (4789), 3135 states have internal predecessors, (4789), 0 states have call successors, (0), 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 19:07:36,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 4789 transitions. [2024-11-08 19:07:36,776 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 4789 transitions. Word has length 78 [2024-11-08 19:07:36,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:36,779 INFO L471 AbstractCegarLoop]: Abstraction has 3136 states and 4789 transitions. [2024-11-08 19:07:36,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:36,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 4789 transitions. [2024-11-08 19:07:36,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 19:07:36,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:36,783 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:36,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:07:36,784 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:36,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:36,785 INFO L85 PathProgramCache]: Analyzing trace with hash -534472619, now seen corresponding path program 1 times [2024-11-08 19:07:36,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:36,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094154104] [2024-11-08 19:07:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:36,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:37,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:37,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:37,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094154104] [2024-11-08 19:07:37,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094154104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:37,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:37,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:07:37,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379480689] [2024-11-08 19:07:37,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:37,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:07:37,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:37,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:07:37,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:07:37,008 INFO L87 Difference]: Start difference. First operand 3136 states and 4789 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:42,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:42,333 INFO L93 Difference]: Finished difference Result 7644 states and 11872 transitions. [2024-11-08 19:07:42,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:07:42,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 19:07:42,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:42,355 INFO L225 Difference]: With dead ends: 7644 [2024-11-08 19:07:42,356 INFO L226 Difference]: Without dead ends: 4638 [2024-11-08 19:07:42,361 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 19:07:42,363 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 891 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:42,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 322 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-08 19:07:42,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4638 states. [2024-11-08 19:07:42,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4638 to 4638. [2024-11-08 19:07:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4638 states, 4636 states have (on average 1.5459447799827437) internal successors, (7167), 4637 states have internal predecessors, (7167), 0 states have call successors, (0), 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 19:07:42,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4638 states to 4638 states and 7167 transitions. [2024-11-08 19:07:42,522 INFO L78 Accepts]: Start accepts. Automaton has 4638 states and 7167 transitions. Word has length 81 [2024-11-08 19:07:42,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:42,523 INFO L471 AbstractCegarLoop]: Abstraction has 4638 states and 7167 transitions. [2024-11-08 19:07:42,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:42,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4638 states and 7167 transitions. [2024-11-08 19:07:42,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 19:07:42,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:42,528 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:42,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:07:42,529 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:42,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:42,530 INFO L85 PathProgramCache]: Analyzing trace with hash -420947918, now seen corresponding path program 1 times [2024-11-08 19:07:42,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:42,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459072033] [2024-11-08 19:07:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:42,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:42,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:42,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459072033] [2024-11-08 19:07:42,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459072033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:42,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:42,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:07:42,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118548697] [2024-11-08 19:07:42,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:42,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:07:42,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:42,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:07:42,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:07:42,894 INFO L87 Difference]: Start difference. First operand 4638 states and 7167 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:47,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:47,450 INFO L93 Difference]: Finished difference Result 13652 states and 21162 transitions. [2024-11-08 19:07:47,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:07:47,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 19:07:47,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:47,480 INFO L225 Difference]: With dead ends: 13652 [2024-11-08 19:07:47,481 INFO L226 Difference]: Without dead ends: 9144 [2024-11-08 19:07:47,487 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 19:07:47,488 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 940 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:47,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 614 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 19:07:47,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9144 states. [2024-11-08 19:07:47,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9144 to 9144. [2024-11-08 19:07:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9144 states, 9142 states have (on average 1.3845985561146357) internal successors, (12658), 9143 states have internal predecessors, (12658), 0 states have call successors, (0), 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 19:07:47,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 12658 transitions. [2024-11-08 19:07:47,711 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 12658 transitions. Word has length 82 [2024-11-08 19:07:47,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:47,712 INFO L471 AbstractCegarLoop]: Abstraction has 9144 states and 12658 transitions. [2024-11-08 19:07:47,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:47,713 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 12658 transitions. [2024-11-08 19:07:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 19:07:47,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:47,715 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:47,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:07:47,715 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:47,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash 2075955395, now seen corresponding path program 1 times [2024-11-08 19:07:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:47,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831649395] [2024-11-08 19:07:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:47,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:48,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:48,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:48,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831649395] [2024-11-08 19:07:48,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831649395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:48,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:48,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:07:48,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073290349] [2024-11-08 19:07:48,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:48,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:07:48,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:48,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:07:48,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:07:48,401 INFO L87 Difference]: Start difference. First operand 9144 states and 12658 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:57,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:57,362 INFO L93 Difference]: Finished difference Result 25668 states and 35587 transitions. [2024-11-08 19:07:57,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:07:57,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-08 19:07:57,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:57,432 INFO L225 Difference]: With dead ends: 25668 [2024-11-08 19:07:57,432 INFO L226 Difference]: Without dead ends: 16654 [2024-11-08 19:07:57,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:07:57,444 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 4776 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5301 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 6259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 5301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:57,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4776 Valid, 851 Invalid, 6259 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [958 Valid, 5301 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-08 19:07:57,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16654 states. [2024-11-08 19:07:57,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16654 to 14401. [2024-11-08 19:07:57,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 14399 states have (on average 1.2696020556983123) internal successors, (18281), 14400 states have internal predecessors, (18281), 0 states have call successors, (0), 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 19:07:57,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 18281 transitions. [2024-11-08 19:07:57,806 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 18281 transitions. Word has length 88 [2024-11-08 19:07:57,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:57,807 INFO L471 AbstractCegarLoop]: Abstraction has 14401 states and 18281 transitions. [2024-11-08 19:07:57,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:57,808 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 18281 transitions. [2024-11-08 19:07:57,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 19:07:57,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:57,810 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] [2024-11-08 19:07:57,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:07:57,810 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:57,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:57,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1886064963, now seen corresponding path program 1 times [2024-11-08 19:07:57,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:57,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441657760] [2024-11-08 19:07:57,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:57,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:58,375 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 19:07:58,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:58,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441657760] [2024-11-08 19:07:58,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441657760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:58,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:58,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:07:58,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268029610] [2024-11-08 19:07:58,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:58,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:07:58,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:58,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:07:58,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:07:58,379 INFO L87 Difference]: Start difference. First operand 14401 states and 18281 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 19:07:59,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:59,318 INFO L93 Difference]: Finished difference Result 15393 states and 19881 transitions. [2024-11-08 19:07:59,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:07:59,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-08 19:07:59,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:07:59,354 INFO L225 Difference]: With dead ends: 15393 [2024-11-08 19:07:59,354 INFO L226 Difference]: Without dead ends: 15331 [2024-11-08 19:07:59,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:07:59,366 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 13495 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13495 SdHoareTripleChecker+Valid, 5651 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:07:59,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13495 Valid, 5651 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:07:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15331 states. [2024-11-08 19:07:59,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15331 to 14461. [2024-11-08 19:07:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14461 states, 14459 states have (on average 1.2710422574175255) internal successors, (18378), 14460 states have internal predecessors, (18378), 0 states have call successors, (0), 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 19:07:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14461 states to 14461 states and 18378 transitions. [2024-11-08 19:07:59,656 INFO L78 Accepts]: Start accepts. Automaton has 14461 states and 18378 transitions. Word has length 90 [2024-11-08 19:07:59,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:07:59,657 INFO L471 AbstractCegarLoop]: Abstraction has 14461 states and 18378 transitions. [2024-11-08 19:07:59,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 19:07:59,658 INFO L276 IsEmpty]: Start isEmpty. Operand 14461 states and 18378 transitions. [2024-11-08 19:07:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 19:07:59,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:07:59,660 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] [2024-11-08 19:07:59,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:07:59,660 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:07:59,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:59,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1383457805, now seen corresponding path program 1 times [2024-11-08 19:07:59,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:59,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530901708] [2024-11-08 19:07:59,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:59,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:59,865 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 19:07:59,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:59,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530901708] [2024-11-08 19:07:59,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530901708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:59,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:59,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:07:59,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693431727] [2024-11-08 19:07:59,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:59,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:07:59,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:59,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:07:59,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:07:59,869 INFO L87 Difference]: Start difference. First operand 14461 states and 18378 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:07:59,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:07:59,984 INFO L93 Difference]: Finished difference Result 14694 states and 18753 transitions. [2024-11-08 19:07:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:07:59,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 19:07:59,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:00,016 INFO L225 Difference]: With dead ends: 14694 [2024-11-08 19:08:00,016 INFO L226 Difference]: Without dead ends: 14572 [2024-11-08 19:08:00,021 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 19:08:00,023 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:00,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:08:00,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14572 states. [2024-11-08 19:08:00,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14572 to 14568. [2024-11-08 19:08:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14568 states, 14566 states have (on average 1.273376355897295) internal successors, (18548), 14567 states have internal predecessors, (18548), 0 states have call successors, (0), 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 19:08:00,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14568 states to 14568 states and 18548 transitions. [2024-11-08 19:08:00,307 INFO L78 Accepts]: Start accepts. Automaton has 14568 states and 18548 transitions. Word has length 92 [2024-11-08 19:08:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:00,307 INFO L471 AbstractCegarLoop]: Abstraction has 14568 states and 18548 transitions. [2024-11-08 19:08:00,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:08:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 14568 states and 18548 transitions. [2024-11-08 19:08:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 19:08:00,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:00,310 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] [2024-11-08 19:08:00,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:08:00,310 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:00,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:00,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1316964293, now seen corresponding path program 1 times [2024-11-08 19:08:00,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:00,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668639445] [2024-11-08 19:08:00,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:00,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:01,337 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 19:08:01,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:01,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668639445] [2024-11-08 19:08:01,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668639445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:01,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:01,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:08:01,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450410148] [2024-11-08 19:08:01,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:01,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:01,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:01,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:01,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:01,341 INFO L87 Difference]: Start difference. First operand 14568 states and 18548 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:08:02,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:02,289 INFO L93 Difference]: Finished difference Result 14799 states and 18916 transitions. [2024-11-08 19:08:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:08:02,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 19:08:02,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:02,324 INFO L225 Difference]: With dead ends: 14799 [2024-11-08 19:08:02,325 INFO L226 Difference]: Without dead ends: 14570 [2024-11-08 19:08:02,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:08:02,332 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 12156 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12156 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:02,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12156 Valid, 2279 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:08:02,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14570 states. [2024-11-08 19:08:02,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14570 to 14568. [2024-11-08 19:08:02,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14568 states, 14566 states have (on average 1.273239049842098) internal successors, (18546), 14567 states have internal predecessors, (18546), 0 states have call successors, (0), 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 19:08:02,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14568 states to 14568 states and 18546 transitions. [2024-11-08 19:08:02,580 INFO L78 Accepts]: Start accepts. Automaton has 14568 states and 18546 transitions. Word has length 92 [2024-11-08 19:08:02,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:02,581 INFO L471 AbstractCegarLoop]: Abstraction has 14568 states and 18546 transitions. [2024-11-08 19:08:02,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 19:08:02,581 INFO L276 IsEmpty]: Start isEmpty. Operand 14568 states and 18546 transitions. [2024-11-08 19:08:02,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 19:08:02,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:02,583 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 19:08:02,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:08:02,583 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:02,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:02,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1709057062, now seen corresponding path program 1 times [2024-11-08 19:08:02,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:02,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239355] [2024-11-08 19:08:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:02,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:02,987 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 19:08:02,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:02,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239355] [2024-11-08 19:08:02,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:02,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:02,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:08:02,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629722329] [2024-11-08 19:08:02,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:02,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:08:02,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:02,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:08:02,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:08:02,992 INFO L87 Difference]: Start difference. First operand 14568 states and 18546 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 19:08:03,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:03,083 INFO L93 Difference]: Finished difference Result 14576 states and 18555 transitions. [2024-11-08 19:08:03,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:08:03,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 19:08:03,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:03,108 INFO L225 Difference]: With dead ends: 14576 [2024-11-08 19:08:03,108 INFO L226 Difference]: Without dead ends: 14574 [2024-11-08 19:08:03,113 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 19:08:03,114 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6403 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 19:08:03,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6403 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:08:03,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14574 states. [2024-11-08 19:08:03,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14574 to 14574. [2024-11-08 19:08:03,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14574 states, 14572 states have (on average 1.2730579192972824) internal successors, (18551), 14573 states have internal predecessors, (18551), 0 states have call successors, (0), 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 19:08:03,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14574 states to 14574 states and 18551 transitions. [2024-11-08 19:08:03,318 INFO L78 Accepts]: Start accepts. Automaton has 14574 states and 18551 transitions. Word has length 93 [2024-11-08 19:08:03,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:03,319 INFO L471 AbstractCegarLoop]: Abstraction has 14574 states and 18551 transitions. [2024-11-08 19:08:03,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 19:08:03,319 INFO L276 IsEmpty]: Start isEmpty. Operand 14574 states and 18551 transitions. [2024-11-08 19:08:03,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:08:03,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:03,320 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 19:08:03,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:08:03,321 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:03,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:03,321 INFO L85 PathProgramCache]: Analyzing trace with hash -290375813, now seen corresponding path program 1 times [2024-11-08 19:08:03,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:03,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977055895] [2024-11-08 19:08:03,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:03,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:03,429 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 19:08:03,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:03,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977055895] [2024-11-08 19:08:03,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977055895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:03,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:03,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:03,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969529792] [2024-11-08 19:08:03,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:03,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:08:03,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:03,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:08:03,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:08:03,431 INFO L87 Difference]: Start difference. First operand 14574 states and 18551 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:03,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:03,524 INFO L93 Difference]: Finished difference Result 15028 states and 19263 transitions. [2024-11-08 19:08:03,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:08:03,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:03,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:03,550 INFO L225 Difference]: With dead ends: 15028 [2024-11-08 19:08:03,550 INFO L226 Difference]: Without dead ends: 14793 [2024-11-08 19:08:03,555 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 19:08:03,556 INFO L432 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 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 19:08:03,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:08:03,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14793 states. [2024-11-08 19:08:03,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14793 to 14791. [2024-11-08 19:08:03,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14791 states, 14789 states have (on average 1.277165460815471) internal successors, (18888), 14790 states have internal predecessors, (18888), 0 states have call successors, (0), 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 19:08:03,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14791 states to 14791 states and 18888 transitions. [2024-11-08 19:08:03,831 INFO L78 Accepts]: Start accepts. Automaton has 14791 states and 18888 transitions. Word has length 94 [2024-11-08 19:08:03,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:03,831 INFO L471 AbstractCegarLoop]: Abstraction has 14791 states and 18888 transitions. [2024-11-08 19:08:03,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:03,831 INFO L276 IsEmpty]: Start isEmpty. Operand 14791 states and 18888 transitions. [2024-11-08 19:08:03,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:08:03,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:03,833 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 19:08:03,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:08:03,833 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:03,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:03,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1651693691, now seen corresponding path program 1 times [2024-11-08 19:08:03,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:03,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414707745] [2024-11-08 19:08:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:03,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:03,948 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 19:08:03,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:03,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414707745] [2024-11-08 19:08:03,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414707745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:03,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:03,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:03,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328733249] [2024-11-08 19:08:03,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:03,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:08:03,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:03,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:08:03,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:08:03,950 INFO L87 Difference]: Start difference. First operand 14791 states and 18888 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:04,048 INFO L93 Difference]: Finished difference Result 15663 states and 20246 transitions. [2024-11-08 19:08:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:08:04,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:04,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:04,075 INFO L225 Difference]: With dead ends: 15663 [2024-11-08 19:08:04,075 INFO L226 Difference]: Without dead ends: 15211 [2024-11-08 19:08:04,080 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 19:08:04,081 INFO L432 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 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 19:08:04,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:08:04,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15211 states. [2024-11-08 19:08:04,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15211 to 15209. [2024-11-08 19:08:04,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15209 states, 15207 states have (on average 1.2842769777076346) internal successors, (19530), 15208 states have internal predecessors, (19530), 0 states have call successors, (0), 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 19:08:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15209 states to 15209 states and 19530 transitions. [2024-11-08 19:08:04,298 INFO L78 Accepts]: Start accepts. Automaton has 15209 states and 19530 transitions. Word has length 94 [2024-11-08 19:08:04,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:04,298 INFO L471 AbstractCegarLoop]: Abstraction has 15209 states and 19530 transitions. [2024-11-08 19:08:04,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 15209 states and 19530 transitions. [2024-11-08 19:08:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:08:04,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:04,300 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 19:08:04,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 19:08:04,301 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:04,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:04,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2078464635, now seen corresponding path program 1 times [2024-11-08 19:08:04,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:04,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413926618] [2024-11-08 19:08:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:04,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:04,403 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 19:08:04,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:04,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413926618] [2024-11-08 19:08:04,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413926618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:04,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:04,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:04,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547871137] [2024-11-08 19:08:04,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:04,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:08:04,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:04,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:08:04,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:08:04,406 INFO L87 Difference]: Start difference. First operand 15209 states and 19530 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:04,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:04,515 INFO L93 Difference]: Finished difference Result 16885 states and 22116 transitions. [2024-11-08 19:08:04,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:08:04,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:04,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:04,544 INFO L225 Difference]: With dead ends: 16885 [2024-11-08 19:08:04,544 INFO L226 Difference]: Without dead ends: 16015 [2024-11-08 19:08:04,549 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 19:08:04,551 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 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 19:08:04,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:08:04,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16015 states. [2024-11-08 19:08:04,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16015 to 16013. [2024-11-08 19:08:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16013 states, 16011 states have (on average 1.2959840109924428) internal successors, (20750), 16012 states have internal predecessors, (20750), 0 states have call successors, (0), 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 19:08:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16013 states to 16013 states and 20750 transitions. [2024-11-08 19:08:04,848 INFO L78 Accepts]: Start accepts. Automaton has 16013 states and 20750 transitions. Word has length 94 [2024-11-08 19:08:04,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:04,849 INFO L471 AbstractCegarLoop]: Abstraction has 16013 states and 20750 transitions. [2024-11-08 19:08:04,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:04,849 INFO L276 IsEmpty]: Start isEmpty. Operand 16013 states and 20750 transitions. [2024-11-08 19:08:04,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:08:04,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:04,851 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 19:08:04,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:08:04,851 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:04,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash -978240645, now seen corresponding path program 1 times [2024-11-08 19:08:04,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:04,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411019552] [2024-11-08 19:08:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:04,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:04,989 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 19:08:04,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:04,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411019552] [2024-11-08 19:08:04,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411019552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:04,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:04,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:04,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976804396] [2024-11-08 19:08:04,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:04,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:08:04,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:04,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:08:04,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:08:04,992 INFO L87 Difference]: Start difference. First operand 16013 states and 20750 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:05,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:05,189 INFO L93 Difference]: Finished difference Result 19233 states and 25664 transitions. [2024-11-08 19:08:05,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:08:05,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:05,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:05,224 INFO L225 Difference]: With dead ends: 19233 [2024-11-08 19:08:05,225 INFO L226 Difference]: Without dead ends: 17559 [2024-11-08 19:08:05,231 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 19:08:05,232 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 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 19:08:05,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:08:05,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17559 states. [2024-11-08 19:08:05,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17559 to 17557. [2024-11-08 19:08:05,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17557 states, 17555 states have (on average 1.313699800626602) internal successors, (23062), 17556 states have internal predecessors, (23062), 0 states have call successors, (0), 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 19:08:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17557 states to 17557 states and 23062 transitions. [2024-11-08 19:08:05,687 INFO L78 Accepts]: Start accepts. Automaton has 17557 states and 23062 transitions. Word has length 94 [2024-11-08 19:08:05,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:05,688 INFO L471 AbstractCegarLoop]: Abstraction has 17557 states and 23062 transitions. [2024-11-08 19:08:05,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 17557 states and 23062 transitions. [2024-11-08 19:08:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:08:05,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:05,690 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 19:08:05,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 19:08:05,691 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:05,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:05,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1101257851, now seen corresponding path program 1 times [2024-11-08 19:08:05,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:05,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677837267] [2024-11-08 19:08:05,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:05,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:05,832 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 19:08:05,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:05,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677837267] [2024-11-08 19:08:05,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677837267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:05,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:05,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:05,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835686134] [2024-11-08 19:08:05,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:05,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:08:05,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:05,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:08:05,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:08:05,836 INFO L87 Difference]: Start difference. First operand 17557 states and 23062 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:06,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:06,111 INFO L93 Difference]: Finished difference Result 23737 states and 32376 transitions. [2024-11-08 19:08:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:08:06,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:06,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:06,148 INFO L225 Difference]: With dead ends: 23737 [2024-11-08 19:08:06,148 INFO L226 Difference]: Without dead ends: 20519 [2024-11-08 19:08:06,160 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 19:08:06,161 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 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 19:08:06,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:08:06,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20519 states. [2024-11-08 19:08:06,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20519 to 20517. [2024-11-08 19:08:06,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20517 states, 20515 states have (on average 1.3370704362661467) internal successors, (27430), 20516 states have internal predecessors, (27430), 0 states have call successors, (0), 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 19:08:06,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20517 states to 20517 states and 27430 transitions. [2024-11-08 19:08:06,656 INFO L78 Accepts]: Start accepts. Automaton has 20517 states and 27430 transitions. Word has length 94 [2024-11-08 19:08:06,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:06,656 INFO L471 AbstractCegarLoop]: Abstraction has 20517 states and 27430 transitions. [2024-11-08 19:08:06,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 20517 states and 27430 transitions. [2024-11-08 19:08:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:08:06,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:06,658 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 19:08:06,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:08:06,659 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:06,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:06,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1412776581, now seen corresponding path program 1 times [2024-11-08 19:08:06,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:06,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915236884] [2024-11-08 19:08:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:06,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:06,810 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 19:08:06,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:06,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915236884] [2024-11-08 19:08:06,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915236884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:06,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:06,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:06,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950054387] [2024-11-08 19:08:06,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:06,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:08:06,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:06,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:08:06,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:08:06,815 INFO L87 Difference]: Start difference. First operand 20517 states and 27430 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:07,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:07,399 INFO L93 Difference]: Finished difference Result 32361 states and 45032 transitions. [2024-11-08 19:08:07,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:08:07,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:07,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:07,436 INFO L225 Difference]: With dead ends: 32361 [2024-11-08 19:08:07,438 INFO L226 Difference]: Without dead ends: 26183 [2024-11-08 19:08:07,446 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 19:08:07,447 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1792 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 19:08:07,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:08:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26183 states. [2024-11-08 19:08:08,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26183 to 26181. [2024-11-08 19:08:08,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26181 states, 26179 states have (on average 1.361931318996142) internal successors, (35654), 26180 states have internal predecessors, (35654), 0 states have call successors, (0), 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 19:08:08,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26181 states to 26181 states and 35654 transitions. [2024-11-08 19:08:08,151 INFO L78 Accepts]: Start accepts. Automaton has 26181 states and 35654 transitions. Word has length 94 [2024-11-08 19:08:08,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:08,152 INFO L471 AbstractCegarLoop]: Abstraction has 26181 states and 35654 transitions. [2024-11-08 19:08:08,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:08,153 INFO L276 IsEmpty]: Start isEmpty. Operand 26181 states and 35654 transitions. [2024-11-08 19:08:08,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 19:08:08,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:08,155 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 19:08:08,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 19:08:08,155 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:08,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:08,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1814608251, now seen corresponding path program 1 times [2024-11-08 19:08:08,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:08,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917621739] [2024-11-08 19:08:08,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:08,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:08,297 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 19:08:08,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:08,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917621739] [2024-11-08 19:08:08,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917621739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:08,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:08,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:08,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592922468] [2024-11-08 19:08:08,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:08,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:08:08,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:08,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:08:08,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:08:08,301 INFO L87 Difference]: Start difference. First operand 26181 states and 35654 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:09,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:09,242 INFO L93 Difference]: Finished difference Result 48841 states and 68808 transitions. [2024-11-08 19:08:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:08:09,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:09,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:09,307 INFO L225 Difference]: With dead ends: 48841 [2024-11-08 19:08:09,307 INFO L226 Difference]: Without dead ends: 36999 [2024-11-08 19:08:09,325 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 19:08:09,326 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 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 19:08:09,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:08:09,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36999 states. [2024-11-08 19:08:10,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36999 to 36997. [2024-11-08 19:08:10,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36997 states, 36995 states have (on average 1.3806730639275577) internal successors, (51078), 36996 states have internal predecessors, (51078), 0 states have call successors, (0), 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 19:08:10,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36997 states to 36997 states and 51078 transitions. [2024-11-08 19:08:10,707 INFO L78 Accepts]: Start accepts. Automaton has 36997 states and 51078 transitions. Word has length 94 [2024-11-08 19:08:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:10,708 INFO L471 AbstractCegarLoop]: Abstraction has 36997 states and 51078 transitions. [2024-11-08 19:08:10,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 19:08:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 36997 states and 51078 transitions. [2024-11-08 19:08:10,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 19:08:10,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:10,710 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, 1] [2024-11-08 19:08:10,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:08:10,711 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:10,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:10,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1683181226, now seen corresponding path program 1 times [2024-11-08 19:08:10,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:10,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437653607] [2024-11-08 19:08:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:10,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:10,843 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 19:08:10,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:10,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437653607] [2024-11-08 19:08:10,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437653607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:10,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:10,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:08:10,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881519786] [2024-11-08 19:08:10,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:10,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:08:10,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:10,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:08:10,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:08:10,847 INFO L87 Difference]: Start difference. First operand 36997 states and 51078 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 19:08:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:12,095 INFO L93 Difference]: Finished difference Result 60556 states and 85644 transitions. [2024-11-08 19:08:12,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:08:12,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-08 19:08:12,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:12,168 INFO L225 Difference]: With dead ends: 60556 [2024-11-08 19:08:12,169 INFO L226 Difference]: Without dead ends: 48009 [2024-11-08 19:08:12,184 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 19:08:12,185 INFO L432 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 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 19:08:12,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 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 19:08:12,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48009 states. [2024-11-08 19:08:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48009 to 48007. [2024-11-08 19:08:13,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48007 states, 48005 states have (on average 1.3920216644099572) internal successors, (66824), 48006 states have internal predecessors, (66824), 0 states have call successors, (0), 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 19:08:13,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48007 states to 48007 states and 66824 transitions. [2024-11-08 19:08:13,696 INFO L78 Accepts]: Start accepts. Automaton has 48007 states and 66824 transitions. Word has length 96 [2024-11-08 19:08:13,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:13,697 INFO L471 AbstractCegarLoop]: Abstraction has 48007 states and 66824 transitions. [2024-11-08 19:08:13,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 19:08:13,698 INFO L276 IsEmpty]: Start isEmpty. Operand 48007 states and 66824 transitions. [2024-11-08 19:08:13,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 19:08:13,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:13,710 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:13,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 19:08:13,711 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:13,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:13,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2033252381, now seen corresponding path program 1 times [2024-11-08 19:08:13,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:13,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222217550] [2024-11-08 19:08:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:13,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:08:14,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:14,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222217550] [2024-11-08 19:08:14,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222217550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:14,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:14,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:08:14,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348447963] [2024-11-08 19:08:14,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:14,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:14,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:14,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:14,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:14,236 INFO L87 Difference]: Start difference. First operand 48007 states and 66824 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:22,665 INFO L93 Difference]: Finished difference Result 324121 states and 465425 transitions. [2024-11-08 19:08:22,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:08:22,666 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-08 19:08:22,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:23,407 INFO L225 Difference]: With dead ends: 324121 [2024-11-08 19:08:23,407 INFO L226 Difference]: Without dead ends: 290455 [2024-11-08 19:08:23,503 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 19:08:23,504 INFO L432 NwaCegarLoop]: 1709 mSDtfsCounter, 11756 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11756 SdHoareTripleChecker+Valid, 5047 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:23,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11756 Valid, 5047 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:08:23,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290455 states. [2024-11-08 19:08:28,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290455 to 81671. [2024-11-08 19:08:28,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81671 states, 81669 states have (on average 1.4091025970686553) internal successors, (115080), 81670 states have internal predecessors, (115080), 0 states have call successors, (0), 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 19:08:28,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81671 states to 81671 states and 115080 transitions. [2024-11-08 19:08:28,684 INFO L78 Accepts]: Start accepts. Automaton has 81671 states and 115080 transitions. Word has length 119 [2024-11-08 19:08:28,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:28,684 INFO L471 AbstractCegarLoop]: Abstraction has 81671 states and 115080 transitions. [2024-11-08 19:08:28,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:08:28,685 INFO L276 IsEmpty]: Start isEmpty. Operand 81671 states and 115080 transitions. [2024-11-08 19:08:28,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 19:08:28,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:28,698 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:28,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 19:08:28,699 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:28,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:28,700 INFO L85 PathProgramCache]: Analyzing trace with hash -319645411, now seen corresponding path program 1 times [2024-11-08 19:08:28,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:28,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873968894] [2024-11-08 19:08:28,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:28,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:29,461 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 19:08:29,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:29,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873968894] [2024-11-08 19:08:29,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873968894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:29,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:29,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:08:29,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907989941] [2024-11-08 19:08:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:29,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:29,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:29,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:29,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:29,464 INFO L87 Difference]: Start difference. First operand 81671 states and 115080 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 19:08:39,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:08:39,959 INFO L93 Difference]: Finished difference Result 357785 states and 513681 transitions. [2024-11-08 19:08:39,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:08:39,959 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 119 [2024-11-08 19:08:39,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:08:40,469 INFO L225 Difference]: With dead ends: 357785 [2024-11-08 19:08:40,469 INFO L226 Difference]: Without dead ends: 324119 [2024-11-08 19:08:40,576 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 19:08:40,578 INFO L432 NwaCegarLoop]: 1706 mSDtfsCounter, 11802 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 4880 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:08:40,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 4880 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:08:40,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324119 states. [2024-11-08 19:08:47,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324119 to 132231. [2024-11-08 19:08:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132231 states, 132229 states have (on average 1.4153022408095046) internal successors, (187144), 132230 states have internal predecessors, (187144), 0 states have call successors, (0), 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 19:08:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132231 states to 132231 states and 187144 transitions. [2024-11-08 19:08:48,066 INFO L78 Accepts]: Start accepts. Automaton has 132231 states and 187144 transitions. Word has length 119 [2024-11-08 19:08:48,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:08:48,066 INFO L471 AbstractCegarLoop]: Abstraction has 132231 states and 187144 transitions. [2024-11-08 19:08:48,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 19:08:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 132231 states and 187144 transitions. [2024-11-08 19:08:48,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 19:08:48,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:08:48,080 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:08:48,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 19:08:48,080 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:08:48,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:08:48,081 INFO L85 PathProgramCache]: Analyzing trace with hash 107125533, now seen corresponding path program 1 times [2024-11-08 19:08:48,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:08:48,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537633564] [2024-11-08 19:08:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:08:48,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:08:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:08:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 19:08:49,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:08:49,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537633564] [2024-11-08 19:08:49,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537633564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:08:49,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:08:49,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 19:08:49,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059118068] [2024-11-08 19:08:49,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:08:49,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:08:49,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:08:49,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:08:49,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:08:49,031 INFO L87 Difference]: Start difference. First operand 132231 states and 187144 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)