./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme --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 0ed6e4196d49d75b29a7ddd297e9986c08c6bd65f18221f72f78571f381f483e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:51,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:51,383 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:42:51,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:51,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:51,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:51,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:51,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:51,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:51,446 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:51,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:51,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:51,449 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:51,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:51,451 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:51,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:51,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:51,453 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:51,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:42:51,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:51,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:51,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:51,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:51,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:51,457 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:51,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:51,458 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:51,459 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:51,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:51,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:42:51,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:51,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:51,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:51,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:51,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:51,478 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:42:51,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:42:51,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:51,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:51,479 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:51,479 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:51,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:51,480 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_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ed6e4196d49d75b29a7ddd297e9986c08c6bd65f18221f72f78571f381f483e [2023-11-26 10:42:51,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:51,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:51,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:51,897 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:51,898 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:51,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-11-26 10:42:55,056 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:55,482 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:55,484 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-11-26 10:42:55,508 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/data/c159b1edc/05a52c0879284dac9cefe14fadf7c98a/FLAGae5651437 [2023-11-26 10:42:55,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/data/c159b1edc/05a52c0879284dac9cefe14fadf7c98a [2023-11-26 10:42:55,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:55,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:55,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:55,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:55,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:55,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:55,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aff2045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:55, skipping insertion in model container [2023-11-26 10:42:55,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:55" (1/1) ... [2023-11-26 10:42:55,643 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:55,939 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8637,8650] [2023-11-26 10:42:56,015 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15862,15875] [2023-11-26 10:42:56,058 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18059,18072] [2023-11-26 10:42:56,066 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19083,19096] [2023-11-26 10:42:56,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:56,518 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:56,584 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8637,8650] [2023-11-26 10:42:56,606 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15862,15875] [2023-11-26 10:42:56,620 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18059,18072] [2023-11-26 10:42:56,625 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19083,19096] [2023-11-26 10:42:56,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:56,754 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:56,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56 WrapperNode [2023-11-26 10:42:56,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:56,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:56,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:56,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:56,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:56,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:56,931 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2841 [2023-11-26 10:42:56,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:56,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:56,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:56,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:56,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:56,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:56,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:57,003 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:42:57,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:57,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:57,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:57,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:57,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:57,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:57,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:57,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:57,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:57,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:57,145 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (1/1) ... [2023-11-26 10:42:57,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:57,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:57,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:42:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:57,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:57,552 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:57,554 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:59,448 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:59,535 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:59,535 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:42:59,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:59 BoogieIcfgContainer [2023-11-26 10:42:59,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:59,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:59,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:59,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:59,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:55" (1/3) ... [2023-11-26 10:42:59,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22eabe53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:59, skipping insertion in model container [2023-11-26 10:42:59,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:56" (2/3) ... [2023-11-26 10:42:59,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22eabe53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:59, skipping insertion in model container [2023-11-26 10:42:59,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:59" (3/3) ... [2023-11-26 10:42:59,551 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-11-26 10:42:59,576 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:59,578 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-26 10:42:59,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:59,682 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7256880e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:59,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-26 10:42:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 455 states, 450 states have (on average 1.8533333333333333) internal successors, (834), 454 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-26 10:42:59,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:42:59,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:59,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:42:59,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:59,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1875598250, now seen corresponding path program 1 times [2023-11-26 10:42:59,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:59,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182620953] [2023-11-26 10:42:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:59,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:00,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:00,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182620953] [2023-11-26 10:43:00,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182620953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:00,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:00,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:00,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913899379] [2023-11-26 10:43:00,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:00,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:00,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:00,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:00,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:00,309 INFO L87 Difference]: Start difference. First operand has 455 states, 450 states have (on average 1.8533333333333333) internal successors, (834), 454 states have internal predecessors, (834), 0 states have call successors, (0), 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 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:00,521 INFO L93 Difference]: Finished difference Result 721 states and 1267 transitions. [2023-11-26 10:43:00,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:00,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-11-26 10:43:00,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:00,543 INFO L225 Difference]: With dead ends: 721 [2023-11-26 10:43:00,543 INFO L226 Difference]: Without dead ends: 570 [2023-11-26 10:43:00,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:00,550 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 437 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:00,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1408 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:00,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-11-26 10:43:00,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 564. [2023-11-26 10:43:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 560 states have (on average 1.3446428571428573) internal successors, (753), 563 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 753 transitions. [2023-11-26 10:43:00,629 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 753 transitions. Word has length 50 [2023-11-26 10:43:00,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:00,630 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 753 transitions. [2023-11-26 10:43:00,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,630 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 753 transitions. [2023-11-26 10:43:00,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-26 10:43:00,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:00,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:00,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:43:00,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:00,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:00,638 INFO L85 PathProgramCache]: Analyzing trace with hash -2061015356, now seen corresponding path program 1 times [2023-11-26 10:43:00,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:00,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589253879] [2023-11-26 10:43:00,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:00,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:00,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:00,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589253879] [2023-11-26 10:43:00,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589253879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:00,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:00,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:00,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822465606] [2023-11-26 10:43:00,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:00,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:00,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:00,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:00,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:00,765 INFO L87 Difference]: Start difference. First operand 564 states and 753 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:00,905 INFO L93 Difference]: Finished difference Result 993 states and 1378 transitions. [2023-11-26 10:43:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:00,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-11-26 10:43:00,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:00,912 INFO L225 Difference]: With dead ends: 993 [2023-11-26 10:43:00,913 INFO L226 Difference]: Without dead ends: 780 [2023-11-26 10:43:00,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:00,918 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 314 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:00,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1015 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:00,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2023-11-26 10:43:00,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 773. [2023-11-26 10:43:00,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 769 states have (on average 1.3719115734720415) internal successors, (1055), 772 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1055 transitions. [2023-11-26 10:43:00,969 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1055 transitions. Word has length 50 [2023-11-26 10:43:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:00,970 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1055 transitions. [2023-11-26 10:43:00,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1055 transitions. [2023-11-26 10:43:00,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-26 10:43:00,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:00,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:00,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:43:00,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:00,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:00,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2089668058, now seen corresponding path program 1 times [2023-11-26 10:43:00,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:00,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790339262] [2023-11-26 10:43:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:00,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:01,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:01,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790339262] [2023-11-26 10:43:01,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790339262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:01,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:01,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:43:01,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445269317] [2023-11-26 10:43:01,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:01,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:43:01,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:01,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:43:01,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:01,173 INFO L87 Difference]: Start difference. First operand 773 states and 1055 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:01,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:01,679 INFO L93 Difference]: Finished difference Result 1719 states and 2418 transitions. [2023-11-26 10:43:01,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:01,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-11-26 10:43:01,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:01,698 INFO L225 Difference]: With dead ends: 1719 [2023-11-26 10:43:01,699 INFO L226 Difference]: Without dead ends: 1062 [2023-11-26 10:43:01,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:01,702 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1742 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:01,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 390 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 10:43:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-11-26 10:43:01,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1056. [2023-11-26 10:43:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1052 states have (on average 1.4077946768060836) internal successors, (1481), 1055 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:01,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1481 transitions. [2023-11-26 10:43:01,734 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1481 transitions. Word has length 50 [2023-11-26 10:43:01,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:01,735 INFO L495 AbstractCegarLoop]: Abstraction has 1056 states and 1481 transitions. [2023-11-26 10:43:01,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:01,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1481 transitions. [2023-11-26 10:43:01,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 10:43:01,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:01,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:01,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:43:01,738 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:01,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:01,739 INFO L85 PathProgramCache]: Analyzing trace with hash -941949597, now seen corresponding path program 1 times [2023-11-26 10:43:01,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:01,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282786666] [2023-11-26 10:43:01,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:01,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:01,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:01,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282786666] [2023-11-26 10:43:01,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282786666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:01,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:01,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:01,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291055047] [2023-11-26 10:43:01,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:01,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:01,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:01,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:01,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:01,861 INFO L87 Difference]: Start difference. First operand 1056 states and 1481 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:01,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:01,926 INFO L93 Difference]: Finished difference Result 2560 states and 3636 transitions. [2023-11-26 10:43:01,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:01,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-11-26 10:43:01,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:01,938 INFO L225 Difference]: With dead ends: 2560 [2023-11-26 10:43:01,938 INFO L226 Difference]: Without dead ends: 1729 [2023-11-26 10:43:01,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:01,947 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 364 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:01,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 931 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:43:01,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2023-11-26 10:43:02,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1715. [2023-11-26 10:43:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1711 states have (on average 1.3921683226183519) internal successors, (2382), 1714 states have internal predecessors, (2382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2382 transitions. [2023-11-26 10:43:02,050 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2382 transitions. Word has length 51 [2023-11-26 10:43:02,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:02,051 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2382 transitions. [2023-11-26 10:43:02,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:02,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2382 transitions. [2023-11-26 10:43:02,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-26 10:43:02,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:02,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:02,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:43:02,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:02,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:02,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1880466014, now seen corresponding path program 1 times [2023-11-26 10:43:02,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:02,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437820451] [2023-11-26 10:43:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:02,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:02,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:02,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437820451] [2023-11-26 10:43:02,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437820451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:02,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:02,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:43:02,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314278227] [2023-11-26 10:43:02,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:02,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:43:02,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:02,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:43:02,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:02,238 INFO L87 Difference]: Start difference. First operand 1715 states and 2382 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:02,646 INFO L93 Difference]: Finished difference Result 3784 states and 5311 transitions. [2023-11-26 10:43:02,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:02,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-11-26 10:43:02,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:02,659 INFO L225 Difference]: With dead ends: 3784 [2023-11-26 10:43:02,660 INFO L226 Difference]: Without dead ends: 2240 [2023-11-26 10:43:02,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:02,663 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1537 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:02,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 365 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:43:02,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2023-11-26 10:43:02,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2226. [2023-11-26 10:43:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 2222 states have (on average 1.396939693969397) internal successors, (3104), 2225 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:02,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 3104 transitions. [2023-11-26 10:43:02,732 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 3104 transitions. Word has length 51 [2023-11-26 10:43:02,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:02,733 INFO L495 AbstractCegarLoop]: Abstraction has 2226 states and 3104 transitions. [2023-11-26 10:43:02,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 3104 transitions. [2023-11-26 10:43:02,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-26 10:43:02,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:02,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:02,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:43:02,737 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:02,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:02,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1402460387, now seen corresponding path program 1 times [2023-11-26 10:43:02,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:02,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989808030] [2023-11-26 10:43:02,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:02,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:02,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:02,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989808030] [2023-11-26 10:43:02,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989808030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:02,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:02,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:43:02,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538666749] [2023-11-26 10:43:02,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:02,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:43:02,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:02,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:43:02,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:02,926 INFO L87 Difference]: Start difference. First operand 2226 states and 3104 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:03,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:03,344 INFO L93 Difference]: Finished difference Result 5039 states and 7065 transitions. [2023-11-26 10:43:03,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:03,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-11-26 10:43:03,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:03,363 INFO L225 Difference]: With dead ends: 5039 [2023-11-26 10:43:03,363 INFO L226 Difference]: Without dead ends: 2984 [2023-11-26 10:43:03,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:03,368 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1386 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:03,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 333 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:43:03,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2023-11-26 10:43:03,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2965. [2023-11-26 10:43:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2961 states have (on average 1.3904086457277947) internal successors, (4117), 2964 states have internal predecessors, (4117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:03,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4117 transitions. [2023-11-26 10:43:03,478 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 4117 transitions. Word has length 52 [2023-11-26 10:43:03,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:03,478 INFO L495 AbstractCegarLoop]: Abstraction has 2965 states and 4117 transitions. [2023-11-26 10:43:03,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:03,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 4117 transitions. [2023-11-26 10:43:03,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-26 10:43:03,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:03,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:03,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:43:03,483 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:03,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:03,484 INFO L85 PathProgramCache]: Analyzing trace with hash -78307905, now seen corresponding path program 1 times [2023-11-26 10:43:03,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:03,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244701230] [2023-11-26 10:43:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:03,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:03,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:03,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:03,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244701230] [2023-11-26 10:43:03,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244701230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:03,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:03,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:43:03,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080112490] [2023-11-26 10:43:03,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:03,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:43:03,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:03,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:43:03,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:03,670 INFO L87 Difference]: Start difference. First operand 2965 states and 4117 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:04,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:04,348 INFO L93 Difference]: Finished difference Result 9647 states and 13610 transitions. [2023-11-26 10:43:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:43:04,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-11-26 10:43:04,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:04,392 INFO L225 Difference]: With dead ends: 9647 [2023-11-26 10:43:04,392 INFO L226 Difference]: Without dead ends: 8326 [2023-11-26 10:43:04,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:43:04,398 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 2823 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:04,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 597 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:43:04,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8326 states. [2023-11-26 10:43:04,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8326 to 2979. [2023-11-26 10:43:04,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2975 states have (on average 1.3899159663865546) internal successors, (4135), 2978 states have internal predecessors, (4135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:04,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4135 transitions. [2023-11-26 10:43:04,602 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4135 transitions. Word has length 53 [2023-11-26 10:43:04,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:04,603 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4135 transitions. [2023-11-26 10:43:04,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:04,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4135 transitions. [2023-11-26 10:43:04,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-26 10:43:04,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:04,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:04,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:43:04,607 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:04,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:04,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1272319552, now seen corresponding path program 1 times [2023-11-26 10:43:04,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:04,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767670537] [2023-11-26 10:43:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:04,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:04,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:04,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:04,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767670537] [2023-11-26 10:43:04,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767670537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:04,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:04,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:43:04,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91413854] [2023-11-26 10:43:04,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:04,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:43:04,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:04,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:43:04,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:04,808 INFO L87 Difference]: Start difference. First operand 2979 states and 4135 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:05,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:05,618 INFO L93 Difference]: Finished difference Result 10677 states and 15138 transitions. [2023-11-26 10:43:05,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:43:05,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-11-26 10:43:05,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:05,704 INFO L225 Difference]: With dead ends: 10677 [2023-11-26 10:43:05,704 INFO L226 Difference]: Without dead ends: 9559 [2023-11-26 10:43:05,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:43:05,708 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2129 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:05,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 755 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 10:43:05,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9559 states. [2023-11-26 10:43:05,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9559 to 3001. [2023-11-26 10:43:05,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 2997 states have (on average 1.3900567233900567) internal successors, (4166), 3000 states have internal predecessors, (4166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:05,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4166 transitions. [2023-11-26 10:43:05,863 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4166 transitions. Word has length 53 [2023-11-26 10:43:05,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:05,864 INFO L495 AbstractCegarLoop]: Abstraction has 3001 states and 4166 transitions. [2023-11-26 10:43:05,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:05,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4166 transitions. [2023-11-26 10:43:05,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-26 10:43:05,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:05,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:05,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:43:05,867 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:05,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:05,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1821294495, now seen corresponding path program 1 times [2023-11-26 10:43:05,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:05,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83109707] [2023-11-26 10:43:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:05,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:06,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:06,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83109707] [2023-11-26 10:43:06,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83109707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:06,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:06,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:43:06,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038478069] [2023-11-26 10:43:06,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:06,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:43:06,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:06,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:43:06,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:06,014 INFO L87 Difference]: Start difference. First operand 3001 states and 4166 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:06,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:06,804 INFO L93 Difference]: Finished difference Result 12682 states and 17894 transitions. [2023-11-26 10:43:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:43:06,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-11-26 10:43:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:06,833 INFO L225 Difference]: With dead ends: 12682 [2023-11-26 10:43:06,833 INFO L226 Difference]: Without dead ends: 11714 [2023-11-26 10:43:06,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:43:06,839 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 3300 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3300 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:06,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3300 Valid, 653 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:43:06,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2023-11-26 10:43:06,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 3035. [2023-11-26 10:43:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 3031 states have (on average 1.3889805344770703) internal successors, (4210), 3034 states have internal predecessors, (4210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4210 transitions. [2023-11-26 10:43:06,980 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4210 transitions. Word has length 53 [2023-11-26 10:43:06,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:06,981 INFO L495 AbstractCegarLoop]: Abstraction has 3035 states and 4210 transitions. [2023-11-26 10:43:06,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:06,981 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4210 transitions. [2023-11-26 10:43:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 10:43:06,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:06,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:06,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:43:06,984 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:06,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:06,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1007743463, now seen corresponding path program 1 times [2023-11-26 10:43:06,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:06,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647666376] [2023-11-26 10:43:06,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:06,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:07,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:07,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647666376] [2023-11-26 10:43:07,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647666376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:07,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:07,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:43:07,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841235180] [2023-11-26 10:43:07,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:07,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:43:07,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:07,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:43:07,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:07,390 INFO L87 Difference]: Start difference. First operand 3035 states and 4210 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:08,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:08,218 INFO L93 Difference]: Finished difference Result 7505 states and 10604 transitions. [2023-11-26 10:43:08,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:43:08,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-11-26 10:43:08,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:08,231 INFO L225 Difference]: With dead ends: 7505 [2023-11-26 10:43:08,231 INFO L226 Difference]: Without dead ends: 5544 [2023-11-26 10:43:08,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:43:08,239 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1903 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:08,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 927 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:43:08,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2023-11-26 10:43:08,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 2948. [2023-11-26 10:43:08,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2944 states have (on average 1.388586956521739) internal successors, (4088), 2947 states have internal predecessors, (4088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 4088 transitions. [2023-11-26 10:43:08,326 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 4088 transitions. Word has length 54 [2023-11-26 10:43:08,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:08,327 INFO L495 AbstractCegarLoop]: Abstraction has 2948 states and 4088 transitions. [2023-11-26 10:43:08,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 4088 transitions. [2023-11-26 10:43:08,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 10:43:08,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:08,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:08,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:43:08,331 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:08,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:08,331 INFO L85 PathProgramCache]: Analyzing trace with hash -649389773, now seen corresponding path program 1 times [2023-11-26 10:43:08,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:08,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758743249] [2023-11-26 10:43:08,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:08,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:08,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:08,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:08,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758743249] [2023-11-26 10:43:08,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758743249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:08,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:08,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:43:08,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359418511] [2023-11-26 10:43:08,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:08,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:43:08,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:08,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:43:08,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:43:08,641 INFO L87 Difference]: Start difference. First operand 2948 states and 4088 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:09,593 INFO L93 Difference]: Finished difference Result 8250 states and 11645 transitions. [2023-11-26 10:43:09,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:43:09,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-11-26 10:43:09,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:09,604 INFO L225 Difference]: With dead ends: 8250 [2023-11-26 10:43:09,605 INFO L226 Difference]: Without dead ends: 6443 [2023-11-26 10:43:09,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:43:09,609 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1120 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:09,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 1328 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 10:43:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6443 states. [2023-11-26 10:43:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6443 to 2919. [2023-11-26 10:43:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2915 states have (on average 1.388336192109777) internal successors, (4047), 2918 states have internal predecessors, (4047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4047 transitions. [2023-11-26 10:43:09,694 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4047 transitions. Word has length 54 [2023-11-26 10:43:09,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:09,694 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4047 transitions. [2023-11-26 10:43:09,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:09,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4047 transitions. [2023-11-26 10:43:09,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 10:43:09,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:09,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:09,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:43:09,698 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:09,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:09,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2094955992, now seen corresponding path program 1 times [2023-11-26 10:43:09,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:09,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284836371] [2023-11-26 10:43:09,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:09,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:09,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:09,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284836371] [2023-11-26 10:43:09,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284836371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:09,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:09,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:43:09,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518811045] [2023-11-26 10:43:09,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:09,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:43:09,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:09,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:43:09,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:43:09,986 INFO L87 Difference]: Start difference. First operand 2919 states and 4047 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:10,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:10,958 INFO L93 Difference]: Finished difference Result 7124 states and 10082 transitions. [2023-11-26 10:43:10,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 10:43:10,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-11-26 10:43:10,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:10,971 INFO L225 Difference]: With dead ends: 7124 [2023-11-26 10:43:10,971 INFO L226 Difference]: Without dead ends: 7119 [2023-11-26 10:43:10,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-26 10:43:10,973 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1809 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:10,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 1220 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:43:10,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7119 states. [2023-11-26 10:43:11,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7119 to 2919. [2023-11-26 10:43:11,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2915 states have (on average 1.3876500857632934) internal successors, (4045), 2918 states have internal predecessors, (4045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4045 transitions. [2023-11-26 10:43:11,080 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4045 transitions. Word has length 54 [2023-11-26 10:43:11,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:11,081 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4045 transitions. [2023-11-26 10:43:11,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4045 transitions. [2023-11-26 10:43:11,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-26 10:43:11,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:11,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:11,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:43:11,089 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:11,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:11,089 INFO L85 PathProgramCache]: Analyzing trace with hash -544921047, now seen corresponding path program 1 times [2023-11-26 10:43:11,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:11,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224105539] [2023-11-26 10:43:11,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:11,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:11,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:11,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224105539] [2023-11-26 10:43:11,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224105539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:11,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:11,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:11,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572628720] [2023-11-26 10:43:11,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:11,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:11,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:11,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:11,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:11,165 INFO L87 Difference]: Start difference. First operand 2919 states and 4045 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:11,218 INFO L93 Difference]: Finished difference Result 4192 states and 5856 transitions. [2023-11-26 10:43:11,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:11,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-11-26 10:43:11,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:11,224 INFO L225 Difference]: With dead ends: 4192 [2023-11-26 10:43:11,224 INFO L226 Difference]: Without dead ends: 2926 [2023-11-26 10:43:11,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:11,228 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 224 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:11,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 795 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:43:11,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2023-11-26 10:43:11,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2919. [2023-11-26 10:43:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2915 states have (on average 1.3739279588336193) internal successors, (4005), 2918 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4005 transitions. [2023-11-26 10:43:11,279 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4005 transitions. Word has length 55 [2023-11-26 10:43:11,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:11,279 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4005 transitions. [2023-11-26 10:43:11,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4005 transitions. [2023-11-26 10:43:11,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-26 10:43:11,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:11,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:11,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:43:11,283 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:11,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:11,283 INFO L85 PathProgramCache]: Analyzing trace with hash -171324051, now seen corresponding path program 1 times [2023-11-26 10:43:11,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:11,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134954270] [2023-11-26 10:43:11,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:11,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:11,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:11,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134954270] [2023-11-26 10:43:11,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134954270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:11,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:11,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:11,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129272346] [2023-11-26 10:43:11,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:11,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:11,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:11,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:11,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:11,357 INFO L87 Difference]: Start difference. First operand 2919 states and 4005 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:11,394 INFO L93 Difference]: Finished difference Result 4259 states and 5888 transitions. [2023-11-26 10:43:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:11,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-11-26 10:43:11,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:11,400 INFO L225 Difference]: With dead ends: 4259 [2023-11-26 10:43:11,400 INFO L226 Difference]: Without dead ends: 2925 [2023-11-26 10:43:11,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:11,403 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 240 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:11,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 800 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:43:11,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2023-11-26 10:43:11,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2919. [2023-11-26 10:43:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2915 states have (on average 1.3615780445969126) internal successors, (3969), 2918 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 3969 transitions. [2023-11-26 10:43:11,454 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 3969 transitions. Word has length 55 [2023-11-26 10:43:11,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:11,455 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 3969 transitions. [2023-11-26 10:43:11,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 3969 transitions. [2023-11-26 10:43:11,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-26 10:43:11,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:11,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:11,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:43:11,458 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:11,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:11,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1692855010, now seen corresponding path program 1 times [2023-11-26 10:43:11,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:11,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417893052] [2023-11-26 10:43:11,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:11,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:11,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:11,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417893052] [2023-11-26 10:43:11,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417893052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:11,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:11,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:11,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572633007] [2023-11-26 10:43:11,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:11,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:11,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:11,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:11,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:11,529 INFO L87 Difference]: Start difference. First operand 2919 states and 3969 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:11,568 INFO L93 Difference]: Finished difference Result 4009 states and 5457 transitions. [2023-11-26 10:43:11,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-11-26 10:43:11,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:11,574 INFO L225 Difference]: With dead ends: 4009 [2023-11-26 10:43:11,574 INFO L226 Difference]: Without dead ends: 2910 [2023-11-26 10:43:11,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:11,578 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 259 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:11,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 811 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:43:11,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2023-11-26 10:43:11,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2904. [2023-11-26 10:43:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2904 states, 2900 states have (on average 1.3341379310344827) internal successors, (3869), 2903 states have internal predecessors, (3869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 3869 transitions. [2023-11-26 10:43:11,644 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 3869 transitions. Word has length 55 [2023-11-26 10:43:11,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:11,644 INFO L495 AbstractCegarLoop]: Abstraction has 2904 states and 3869 transitions. [2023-11-26 10:43:11,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 3869 transitions. [2023-11-26 10:43:11,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 10:43:11,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:11,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:11,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:43:11,651 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:11,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:11,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1901622388, now seen corresponding path program 1 times [2023-11-26 10:43:11,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:11,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550086609] [2023-11-26 10:43:11,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:11,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:11,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:11,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:11,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550086609] [2023-11-26 10:43:11,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550086609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:11,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:11,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:11,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708165144] [2023-11-26 10:43:11,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:11,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:11,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:11,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:11,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:11,714 INFO L87 Difference]: Start difference. First operand 2904 states and 3869 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:11,787 INFO L93 Difference]: Finished difference Result 4582 states and 6151 transitions. [2023-11-26 10:43:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:11,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-11-26 10:43:11,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:11,793 INFO L225 Difference]: With dead ends: 4582 [2023-11-26 10:43:11,794 INFO L226 Difference]: Without dead ends: 3322 [2023-11-26 10:43:11,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:11,797 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 324 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:11,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 530 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:11,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2023-11-26 10:43:11,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2722. [2023-11-26 10:43:11,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 2718 states have (on average 1.336644591611479) internal successors, (3633), 2721 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3633 transitions. [2023-11-26 10:43:11,847 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3633 transitions. Word has length 56 [2023-11-26 10:43:11,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:11,847 INFO L495 AbstractCegarLoop]: Abstraction has 2722 states and 3633 transitions. [2023-11-26 10:43:11,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3633 transitions. [2023-11-26 10:43:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 10:43:11,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:11,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:11,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 10:43:11,852 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:11,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:11,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1344491359, now seen corresponding path program 1 times [2023-11-26 10:43:11,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:11,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041852412] [2023-11-26 10:43:11,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:11,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:13,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:13,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:13,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041852412] [2023-11-26 10:43:13,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041852412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:13,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:13,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-26 10:43:13,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42904159] [2023-11-26 10:43:13,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:13,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-26 10:43:13,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:13,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-26 10:43:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-11-26 10:43:13,337 INFO L87 Difference]: Start difference. First operand 2722 states and 3633 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:16,938 INFO L93 Difference]: Finished difference Result 4373 states and 5861 transitions. [2023-11-26 10:43:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-26 10:43:16,939 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-11-26 10:43:16,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:16,947 INFO L225 Difference]: With dead ends: 4373 [2023-11-26 10:43:16,947 INFO L226 Difference]: Without dead ends: 4369 [2023-11-26 10:43:16,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=212, Invalid=1048, Unknown=0, NotChecked=0, Total=1260 [2023-11-26 10:43:16,950 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 3523 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3523 SdHoareTripleChecker+Valid, 5946 SdHoareTripleChecker+Invalid, 2998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:16,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3523 Valid, 5946 Invalid, 2998 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-26 10:43:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4369 states. [2023-11-26 10:43:16,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4369 to 2722. [2023-11-26 10:43:17,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 2718 states have (on average 1.3362766740250185) internal successors, (3632), 2721 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:17,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3632 transitions. [2023-11-26 10:43:17,006 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3632 transitions. Word has length 57 [2023-11-26 10:43:17,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:17,006 INFO L495 AbstractCegarLoop]: Abstraction has 2722 states and 3632 transitions. [2023-11-26 10:43:17,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:17,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3632 transitions. [2023-11-26 10:43:17,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 10:43:17,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:17,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:17,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 10:43:17,011 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:17,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:17,011 INFO L85 PathProgramCache]: Analyzing trace with hash 972832554, now seen corresponding path program 1 times [2023-11-26 10:43:17,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781489485] [2023-11-26 10:43:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:17,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:17,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781489485] [2023-11-26 10:43:17,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781489485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:17,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:17,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 10:43:17,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244217628] [2023-11-26 10:43:17,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:17,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 10:43:17,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 10:43:17,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:43:17,544 INFO L87 Difference]: Start difference. First operand 2722 states and 3632 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:18,376 INFO L93 Difference]: Finished difference Result 4882 states and 6611 transitions. [2023-11-26 10:43:18,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 10:43:18,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-11-26 10:43:18,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:18,384 INFO L225 Difference]: With dead ends: 4882 [2023-11-26 10:43:18,385 INFO L226 Difference]: Without dead ends: 4514 [2023-11-26 10:43:18,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-11-26 10:43:18,387 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 2479 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2479 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:18,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2479 Valid, 1867 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:43:18,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4514 states. [2023-11-26 10:43:18,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4514 to 2664. [2023-11-26 10:43:18,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2664 states, 2661 states have (on average 1.3378429161969185) internal successors, (3560), 2663 states have internal predecessors, (3560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3560 transitions. [2023-11-26 10:43:18,448 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3560 transitions. Word has length 57 [2023-11-26 10:43:18,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:18,449 INFO L495 AbstractCegarLoop]: Abstraction has 2664 states and 3560 transitions. [2023-11-26 10:43:18,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3560 transitions. [2023-11-26 10:43:18,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 10:43:18,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:18,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:18,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 10:43:18,452 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:18,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:18,453 INFO L85 PathProgramCache]: Analyzing trace with hash -45383322, now seen corresponding path program 1 times [2023-11-26 10:43:18,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:18,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841557056] [2023-11-26 10:43:18,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:18,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:18,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:18,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841557056] [2023-11-26 10:43:18,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841557056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:18,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:18,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:18,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223118793] [2023-11-26 10:43:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:18,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:18,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:18,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:18,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:18,523 INFO L87 Difference]: Start difference. First operand 2664 states and 3560 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:18,601 INFO L93 Difference]: Finished difference Result 4922 states and 6630 transitions. [2023-11-26 10:43:18,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:18,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-11-26 10:43:18,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:18,639 INFO L225 Difference]: With dead ends: 4922 [2023-11-26 10:43:18,639 INFO L226 Difference]: Without dead ends: 3261 [2023-11-26 10:43:18,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:18,642 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 262 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:18,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 410 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:18,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3261 states. [2023-11-26 10:43:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3261 to 2523. [2023-11-26 10:43:18,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2521 states have (on average 1.3407378024593415) internal successors, (3380), 2522 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3380 transitions. [2023-11-26 10:43:18,687 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3380 transitions. Word has length 57 [2023-11-26 10:43:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:18,687 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 3380 transitions. [2023-11-26 10:43:18,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3380 transitions. [2023-11-26 10:43:18,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-26 10:43:18,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:18,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:18,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 10:43:18,691 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:18,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:18,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1565233070, now seen corresponding path program 1 times [2023-11-26 10:43:18,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:18,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720588861] [2023-11-26 10:43:18,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:18,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:19,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:19,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720588861] [2023-11-26 10:43:19,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720588861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:19,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:19,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-26 10:43:19,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276920990] [2023-11-26 10:43:19,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:19,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 10:43:19,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 10:43:19,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:43:19,726 INFO L87 Difference]: Start difference. First operand 2523 states and 3380 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:22,004 INFO L93 Difference]: Finished difference Result 4716 states and 6363 transitions. [2023-11-26 10:43:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-26 10:43:22,009 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2023-11-26 10:43:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:22,018 INFO L225 Difference]: With dead ends: 4716 [2023-11-26 10:43:22,019 INFO L226 Difference]: Without dead ends: 4589 [2023-11-26 10:43:22,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2023-11-26 10:43:22,023 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 2342 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 4021 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:22,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2342 Valid, 4021 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 10:43:22,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4589 states. [2023-11-26 10:43:22,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4589 to 2509. [2023-11-26 10:43:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2508 states have (on average 1.3409090909090908) internal successors, (3363), 2508 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 3363 transitions. [2023-11-26 10:43:22,073 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 3363 transitions. Word has length 58 [2023-11-26 10:43:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:22,074 INFO L495 AbstractCegarLoop]: Abstraction has 2509 states and 3363 transitions. [2023-11-26 10:43:22,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 3363 transitions. [2023-11-26 10:43:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 10:43:22,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:22,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:22,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 10:43:22,079 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:22,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:22,080 INFO L85 PathProgramCache]: Analyzing trace with hash -65378401, now seen corresponding path program 1 times [2023-11-26 10:43:22,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:22,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068469676] [2023-11-26 10:43:22,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:22,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:22,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:22,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:22,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068469676] [2023-11-26 10:43:22,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068469676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:22,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:22,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:22,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570702953] [2023-11-26 10:43:22,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:22,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:43:22,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:22,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:43:22,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:22,210 INFO L87 Difference]: Start difference. First operand 2509 states and 3363 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:22,302 INFO L93 Difference]: Finished difference Result 6109 states and 8407 transitions. [2023-11-26 10:43:22,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:22,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2023-11-26 10:43:22,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:22,311 INFO L225 Difference]: With dead ends: 6109 [2023-11-26 10:43:22,312 INFO L226 Difference]: Without dead ends: 4598 [2023-11-26 10:43:22,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:22,315 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1044 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:22,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 724 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4598 states. [2023-11-26 10:43:22,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4598 to 3924. [2023-11-26 10:43:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 3923 states have (on average 1.3433596737190925) internal successors, (5270), 3923 states have internal predecessors, (5270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5270 transitions. [2023-11-26 10:43:22,381 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5270 transitions. Word has length 67 [2023-11-26 10:43:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:22,382 INFO L495 AbstractCegarLoop]: Abstraction has 3924 states and 5270 transitions. [2023-11-26 10:43:22,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5270 transitions. [2023-11-26 10:43:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 10:43:22,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:22,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:22,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 10:43:22,390 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:22,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:22,390 INFO L85 PathProgramCache]: Analyzing trace with hash -510700073, now seen corresponding path program 1 times [2023-11-26 10:43:22,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:22,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171576723] [2023-11-26 10:43:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:22,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:22,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:22,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:22,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171576723] [2023-11-26 10:43:22,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171576723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:22,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:22,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:22,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695900506] [2023-11-26 10:43:22,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:22,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:43:22,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:22,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:43:22,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:22,514 INFO L87 Difference]: Start difference. First operand 3924 states and 5270 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:22,620 INFO L93 Difference]: Finished difference Result 3930 states and 5273 transitions. [2023-11-26 10:43:22,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:22,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2023-11-26 10:43:22,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:22,628 INFO L225 Difference]: With dead ends: 3930 [2023-11-26 10:43:22,628 INFO L226 Difference]: Without dead ends: 3459 [2023-11-26 10:43:22,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:22,632 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 501 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:22,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 896 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:22,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2023-11-26 10:43:22,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3455. [2023-11-26 10:43:22,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 3454 states have (on average 1.3480023161551824) internal successors, (4656), 3454 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 4656 transitions. [2023-11-26 10:43:22,683 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 4656 transitions. Word has length 68 [2023-11-26 10:43:22,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:22,683 INFO L495 AbstractCegarLoop]: Abstraction has 3455 states and 4656 transitions. [2023-11-26 10:43:22,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 4656 transitions. [2023-11-26 10:43:22,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-26 10:43:22,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:22,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:22,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 10:43:22,690 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:22,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:22,690 INFO L85 PathProgramCache]: Analyzing trace with hash 936875869, now seen corresponding path program 1 times [2023-11-26 10:43:22,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:22,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038210533] [2023-11-26 10:43:22,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:22,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:22,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:22,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038210533] [2023-11-26 10:43:22,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038210533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:22,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:22,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:22,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361804084] [2023-11-26 10:43:22,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:22,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:22,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:22,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:22,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:22,829 INFO L87 Difference]: Start difference. First operand 3455 states and 4656 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:22,870 INFO L93 Difference]: Finished difference Result 8071 states and 11006 transitions. [2023-11-26 10:43:22,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:22,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2023-11-26 10:43:22,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:22,879 INFO L225 Difference]: With dead ends: 8071 [2023-11-26 10:43:22,880 INFO L226 Difference]: Without dead ends: 5445 [2023-11-26 10:43:22,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:22,884 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 136 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:22,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 573 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:43:22,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2023-11-26 10:43:22,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5127. [2023-11-26 10:43:22,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 1.3382754584471324) internal successors, (6860), 5126 states have internal predecessors, (6860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 6860 transitions. [2023-11-26 10:43:22,970 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 6860 transitions. Word has length 69 [2023-11-26 10:43:22,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:22,970 INFO L495 AbstractCegarLoop]: Abstraction has 5127 states and 6860 transitions. [2023-11-26 10:43:22,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 6860 transitions. [2023-11-26 10:43:22,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-26 10:43:22,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:22,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:22,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 10:43:22,976 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:22,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:22,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1521240512, now seen corresponding path program 1 times [2023-11-26 10:43:22,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:22,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16781345] [2023-11-26 10:43:22,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:22,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:23,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:23,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16781345] [2023-11-26 10:43:23,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16781345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:23,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:23,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:23,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632028459] [2023-11-26 10:43:23,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:23,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:23,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:23,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:23,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:23,142 INFO L87 Difference]: Start difference. First operand 5127 states and 6860 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:23,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:23,215 INFO L93 Difference]: Finished difference Result 13247 states and 17962 transitions. [2023-11-26 10:43:23,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:23,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2023-11-26 10:43:23,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:23,234 INFO L225 Difference]: With dead ends: 13247 [2023-11-26 10:43:23,234 INFO L226 Difference]: Without dead ends: 8987 [2023-11-26 10:43:23,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:23,242 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 124 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:23,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 561 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:43:23,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8987 states. [2023-11-26 10:43:23,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8987 to 8249. [2023-11-26 10:43:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8249 states, 8248 states have (on average 1.3397187196896216) internal successors, (11050), 8248 states have internal predecessors, (11050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:23,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8249 states to 8249 states and 11050 transitions. [2023-11-26 10:43:23,383 INFO L78 Accepts]: Start accepts. Automaton has 8249 states and 11050 transitions. Word has length 70 [2023-11-26 10:43:23,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:23,383 INFO L495 AbstractCegarLoop]: Abstraction has 8249 states and 11050 transitions. [2023-11-26 10:43:23,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:23,384 INFO L276 IsEmpty]: Start isEmpty. Operand 8249 states and 11050 transitions. [2023-11-26 10:43:23,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-26 10:43:23,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:23,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:23,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-26 10:43:23,388 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:23,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:23,389 INFO L85 PathProgramCache]: Analyzing trace with hash -665898309, now seen corresponding path program 1 times [2023-11-26 10:43:23,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:23,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754115690] [2023-11-26 10:43:23,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:23,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:23,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:23,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754115690] [2023-11-26 10:43:23,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754115690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:23,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:23,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:23,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461051737] [2023-11-26 10:43:23,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:23,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:23,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:23,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:23,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:23,502 INFO L87 Difference]: Start difference. First operand 8249 states and 11050 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:23,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:23,593 INFO L93 Difference]: Finished difference Result 22213 states and 29924 transitions. [2023-11-26 10:43:23,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:23,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2023-11-26 10:43:23,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:23,620 INFO L225 Difference]: With dead ends: 22213 [2023-11-26 10:43:23,621 INFO L226 Difference]: Without dead ends: 14831 [2023-11-26 10:43:23,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:23,635 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 102 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:23,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 551 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:43:23,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14831 states. [2023-11-26 10:43:23,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14831 to 13613. [2023-11-26 10:43:23,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13613 states, 13612 states have (on average 1.3333823097267117) internal successors, (18150), 13612 states have internal predecessors, (18150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:23,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13613 states to 13613 states and 18150 transitions. [2023-11-26 10:43:23,917 INFO L78 Accepts]: Start accepts. Automaton has 13613 states and 18150 transitions. Word has length 72 [2023-11-26 10:43:23,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:23,918 INFO L495 AbstractCegarLoop]: Abstraction has 13613 states and 18150 transitions. [2023-11-26 10:43:23,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:23,918 INFO L276 IsEmpty]: Start isEmpty. Operand 13613 states and 18150 transitions. [2023-11-26 10:43:23,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-26 10:43:23,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:23,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:23,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 10:43:23,923 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:23,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:23,923 INFO L85 PathProgramCache]: Analyzing trace with hash 93568553, now seen corresponding path program 1 times [2023-11-26 10:43:23,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:23,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832100717] [2023-11-26 10:43:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:23,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:24,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:24,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832100717] [2023-11-26 10:43:24,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832100717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:24,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:24,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:43:24,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470615478] [2023-11-26 10:43:24,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:24,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:43:24,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:24,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:24,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:43:24,151 INFO L87 Difference]: Start difference. First operand 13613 states and 18150 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:24,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:24,334 INFO L93 Difference]: Finished difference Result 29123 states and 38269 transitions. [2023-11-26 10:43:24,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:43:24,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2023-11-26 10:43:24,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:24,389 INFO L225 Difference]: With dead ends: 29123 [2023-11-26 10:43:24,389 INFO L226 Difference]: Without dead ends: 29121 [2023-11-26 10:43:24,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:43:24,398 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 362 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:24,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1359 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:24,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29121 states. [2023-11-26 10:43:24,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29121 to 14957. [2023-11-26 10:43:24,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14957 states, 14956 states have (on average 1.3034233752340199) internal successors, (19494), 14956 states have internal predecessors, (19494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14957 states to 14957 states and 19494 transitions. [2023-11-26 10:43:24,762 INFO L78 Accepts]: Start accepts. Automaton has 14957 states and 19494 transitions. Word has length 74 [2023-11-26 10:43:24,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:24,763 INFO L495 AbstractCegarLoop]: Abstraction has 14957 states and 19494 transitions. [2023-11-26 10:43:24,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 14957 states and 19494 transitions. [2023-11-26 10:43:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-26 10:43:24,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:24,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:24,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-26 10:43:24,768 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:24,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:24,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1179448625, now seen corresponding path program 1 times [2023-11-26 10:43:24,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:24,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923124805] [2023-11-26 10:43:24,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:24,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:24,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:24,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:24,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923124805] [2023-11-26 10:43:24,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923124805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:24,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:24,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:43:24,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843385993] [2023-11-26 10:43:24,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:24,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:43:24,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:24,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:43:24,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:24,831 INFO L87 Difference]: Start difference. First operand 14957 states and 19494 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:24,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:24,947 INFO L93 Difference]: Finished difference Result 36153 states and 47088 transitions. [2023-11-26 10:43:24,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:43:24,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-11-26 10:43:24,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:24,987 INFO L225 Difference]: With dead ends: 36153 [2023-11-26 10:43:24,987 INFO L226 Difference]: Without dead ends: 22063 [2023-11-26 10:43:25,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:43:25,003 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 197 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:25,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 428 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:43:25,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22063 states. [2023-11-26 10:43:25,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22063 to 22061. [2023-11-26 10:43:25,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22061 states, 22060 states have (on average 1.286219401631913) internal successors, (28374), 22060 states have internal predecessors, (28374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22061 states to 22061 states and 28374 transitions. [2023-11-26 10:43:25,496 INFO L78 Accepts]: Start accepts. Automaton has 22061 states and 28374 transitions. Word has length 75 [2023-11-26 10:43:25,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:25,497 INFO L495 AbstractCegarLoop]: Abstraction has 22061 states and 28374 transitions. [2023-11-26 10:43:25,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:25,497 INFO L276 IsEmpty]: Start isEmpty. Operand 22061 states and 28374 transitions. [2023-11-26 10:43:25,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-26 10:43:25,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:25,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:25,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-26 10:43:25,502 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:25,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash 667979649, now seen corresponding path program 1 times [2023-11-26 10:43:25,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:25,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517280203] [2023-11-26 10:43:25,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:25,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:25,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:25,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517280203] [2023-11-26 10:43:25,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517280203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:25,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:25,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:25,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319947772] [2023-11-26 10:43:25,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:25,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:43:25,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:25,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:43:25,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:25,620 INFO L87 Difference]: Start difference. First operand 22061 states and 28374 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:25,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:25,778 INFO L93 Difference]: Finished difference Result 32519 states and 42077 transitions. [2023-11-26 10:43:25,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:25,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-11-26 10:43:25,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:25,828 INFO L225 Difference]: With dead ends: 32519 [2023-11-26 10:43:25,828 INFO L226 Difference]: Without dead ends: 27657 [2023-11-26 10:43:25,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:25,840 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 666 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:25,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 848 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:43:25,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27657 states. [2023-11-26 10:43:26,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27657 to 25215. [2023-11-26 10:43:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25215 states, 25214 states have (on average 1.2836122788926787) internal successors, (32365), 25214 states have internal predecessors, (32365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:26,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25215 states to 25215 states and 32365 transitions. [2023-11-26 10:43:26,436 INFO L78 Accepts]: Start accepts. Automaton has 25215 states and 32365 transitions. Word has length 76 [2023-11-26 10:43:26,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:26,437 INFO L495 AbstractCegarLoop]: Abstraction has 25215 states and 32365 transitions. [2023-11-26 10:43:26,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:26,437 INFO L276 IsEmpty]: Start isEmpty. Operand 25215 states and 32365 transitions. [2023-11-26 10:43:26,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-26 10:43:26,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:26,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:26,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-26 10:43:26,443 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:26,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:26,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1316845845, now seen corresponding path program 1 times [2023-11-26 10:43:26,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:26,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582643829] [2023-11-26 10:43:26,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:26,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:26,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:26,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582643829] [2023-11-26 10:43:26,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582643829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:26,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:26,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:26,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919966110] [2023-11-26 10:43:26,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:26,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:43:26,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:26,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:43:26,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:43:26,596 INFO L87 Difference]: Start difference. First operand 25215 states and 32365 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:26,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:26,916 INFO L93 Difference]: Finished difference Result 33923 states and 43753 transitions. [2023-11-26 10:43:26,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:43:26,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-11-26 10:43:26,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:26,962 INFO L225 Difference]: With dead ends: 33923 [2023-11-26 10:43:26,963 INFO L226 Difference]: Without dead ends: 29157 [2023-11-26 10:43:26,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:43:26,974 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 671 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:26,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 836 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:43:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29157 states. [2023-11-26 10:43:27,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29157 to 28311. [2023-11-26 10:43:27,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28311 states, 28310 states have (on average 1.2812787001059696) internal successors, (36273), 28310 states have internal predecessors, (36273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28311 states to 28311 states and 36273 transitions. [2023-11-26 10:43:27,449 INFO L78 Accepts]: Start accepts. Automaton has 28311 states and 36273 transitions. Word has length 78 [2023-11-26 10:43:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:27,449 INFO L495 AbstractCegarLoop]: Abstraction has 28311 states and 36273 transitions. [2023-11-26 10:43:27,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 28311 states and 36273 transitions. [2023-11-26 10:43:27,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-26 10:43:27,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:27,463 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 10:43:27,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-26 10:43:27,463 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:27,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:27,464 INFO L85 PathProgramCache]: Analyzing trace with hash 710675695, now seen corresponding path program 1 times [2023-11-26 10:43:27,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:27,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419666755] [2023-11-26 10:43:27,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:27,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 10:43:27,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:27,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419666755] [2023-11-26 10:43:27,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419666755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:27,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:27,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:43:27,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955385742] [2023-11-26 10:43:27,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:27,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:43:27,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:27,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:43:27,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:43:27,745 INFO L87 Difference]: Start difference. First operand 28311 states and 36273 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:28,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:28,761 INFO L93 Difference]: Finished difference Result 65136 states and 83085 transitions. [2023-11-26 10:43:28,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:43:28,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 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 94 [2023-11-26 10:43:28,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:28,821 INFO L225 Difference]: With dead ends: 65136 [2023-11-26 10:43:28,822 INFO L226 Difference]: Without dead ends: 46342 [2023-11-26 10:43:28,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:43:28,843 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 786 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:28,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1221 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 10:43:28,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46342 states. [2023-11-26 10:43:29,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46342 to 28179. [2023-11-26 10:43:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28179 states, 28178 states have (on average 1.2816026687486692) internal successors, (36113), 28178 states have internal predecessors, (36113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28179 states to 28179 states and 36113 transitions. [2023-11-26 10:43:29,534 INFO L78 Accepts]: Start accepts. Automaton has 28179 states and 36113 transitions. Word has length 94 [2023-11-26 10:43:29,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:29,534 INFO L495 AbstractCegarLoop]: Abstraction has 28179 states and 36113 transitions. [2023-11-26 10:43:29,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:29,535 INFO L276 IsEmpty]: Start isEmpty. Operand 28179 states and 36113 transitions. [2023-11-26 10:43:29,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-26 10:43:29,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:29,548 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 10:43:29,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-26 10:43:29,549 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:29,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:29,550 INFO L85 PathProgramCache]: Analyzing trace with hash -212725949, now seen corresponding path program 1 times [2023-11-26 10:43:29,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:29,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139563220] [2023-11-26 10:43:29,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:29,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 10:43:29,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:29,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139563220] [2023-11-26 10:43:29,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139563220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:29,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:29,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:43:29,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563913093] [2023-11-26 10:43:29,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:29,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:43:29,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:29,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:43:29,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:43:29,896 INFO L87 Difference]: Start difference. First operand 28179 states and 36113 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:30,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:30,911 INFO L93 Difference]: Finished difference Result 83470 states and 106772 transitions. [2023-11-26 10:43:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:43:30,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 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 94 [2023-11-26 10:43:30,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:31,015 INFO L225 Difference]: With dead ends: 83470 [2023-11-26 10:43:31,016 INFO L226 Difference]: Without dead ends: 69581 [2023-11-26 10:43:31,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:43:31,040 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 881 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:31,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1327 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:43:31,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69581 states. [2023-11-26 10:43:31,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69581 to 28125. [2023-11-26 10:43:31,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28125 states, 28124 states have (on average 1.2816811264400512) internal successors, (36046), 28124 states have internal predecessors, (36046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:31,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28125 states to 28125 states and 36046 transitions. [2023-11-26 10:43:31,933 INFO L78 Accepts]: Start accepts. Automaton has 28125 states and 36046 transitions. Word has length 94 [2023-11-26 10:43:31,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:31,934 INFO L495 AbstractCegarLoop]: Abstraction has 28125 states and 36046 transitions. [2023-11-26 10:43:31,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 28125 states and 36046 transitions. [2023-11-26 10:43:31,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-26 10:43:31,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:31,944 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 10:43:31,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-26 10:43:31,944 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-26 10:43:31,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:31,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1761500302, now seen corresponding path program 1 times [2023-11-26 10:43:31,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:31,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013563633] [2023-11-26 10:43:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:31,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:32,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:32,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013563633] [2023-11-26 10:43:32,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013563633] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:43:32,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179284228] [2023-11-26 10:43:32,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:32,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:32,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:32,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:32,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15ea2060-5235-40a2-ad5d-a5f82d7c12f4/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:43:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:32,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-26 10:43:32,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:33,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:43:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:35,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179284228] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:43:35,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:43:35,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 30 [2023-11-26 10:43:35,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649782464] [2023-11-26 10:43:35,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:43:35,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-26 10:43:35,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:35,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-26 10:43:35,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2023-11-26 10:43:35,370 INFO L87 Difference]: Start difference. First operand 28125 states and 36046 transitions. Second operand has 31 states, 31 states have (on average 8.193548387096774) internal successors, (254), 30 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)