./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/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 b67ecf5848be9c2e67ab202f4088edc38ff4a91991b1583263c2018f06031ba2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:44:41,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:44:41,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:44:41,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:44:41,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:44:41,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:44:41,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:44:41,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:44:41,468 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:44:41,474 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:44:41,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:44:41,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:44:41,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:44:41,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:44:41,480 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:44:41,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:44:41,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:44:41,482 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:44:41,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:44:41,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:44:41,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:44:41,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:44:41,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:44:41,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:44:41,486 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:44:41,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:44:41,488 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:44:41,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:44:41,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:44:41,490 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:44:41,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:44:41,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:41,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:44:41,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:44:41,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:44:41,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:44:41,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:44:41,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:44:41,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:44:41,495 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:44:41,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:44:41,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:44:41,496 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b67ecf5848be9c2e67ab202f4088edc38ff4a91991b1583263c2018f06031ba2 [2023-11-26 10:44:41,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:44:41,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:44:41,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:44:41,920 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:44:41,921 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:44:41,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-11-26 10:44:45,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:44:45,788 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:44:45,789 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-11-26 10:44:45,830 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/data/943f36d2b/36d37442067e440f80e414ba86f0b5e6/FLAGe80ba392b [2023-11-26 10:44:45,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/data/943f36d2b/36d37442067e440f80e414ba86f0b5e6 [2023-11-26 10:44:45,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:44:45,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:44:45,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:45,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:44:45,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:44:45,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:45" (1/1) ... [2023-11-26 10:44:45,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d298458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:45, skipping insertion in model container [2023-11-26 10:44:45,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:45" (1/1) ... [2023-11-26 10:44:46,064 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:44:46,578 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2023-11-26 10:44:46,692 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2023-11-26 10:44:46,741 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2023-11-26 10:44:46,753 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2023-11-26 10:44:46,795 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2023-11-26 10:44:46,803 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2023-11-26 10:44:46,831 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2023-11-26 10:44:47,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:47,523 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:44:47,636 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12458,12471] [2023-11-26 10:44:47,691 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[19724,19737] [2023-11-26 10:44:47,713 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[22076,22089] [2023-11-26 10:44:47,723 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23196,23209] [2023-11-26 10:44:47,757 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[26746,26759] [2023-11-26 10:44:47,768 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[27869,27882] [2023-11-26 10:44:47,790 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_e100bf3c-0885-42dd-97fa-22cc8cc833cb/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[30184,30197] [2023-11-26 10:44:48,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:48,243 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:44:48,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48 WrapperNode [2023-11-26 10:44:48,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:48,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:48,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:44:48,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:44:48,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,525 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7669 [2023-11-26 10:44:48,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:48,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:44:48,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:44:48,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:44:48,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,673 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 10:44:48,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:44:48,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:44:48,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:44:48,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:44:48,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (1/1) ... [2023-11-26 10:44:48,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:48,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:44:48,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:44:49,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e100bf3c-0885-42dd-97fa-22cc8cc833cb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:44:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:44:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:44:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:44:49,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:44:49,451 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:44:49,454 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:44:53,259 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:44:53,355 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:44:53,356 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:44:53,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:53 BoogieIcfgContainer [2023-11-26 10:44:53,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:44:53,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:44:53,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:44:53,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:44:53,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:44:45" (1/3) ... [2023-11-26 10:44:53,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5f47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:53, skipping insertion in model container [2023-11-26 10:44:53,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:48" (2/3) ... [2023-11-26 10:44:53,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5f47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:53, skipping insertion in model container [2023-11-26 10:44:53,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:53" (3/3) ... [2023-11-26 10:44:53,371 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-11-26 10:44:53,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:44:53,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-26 10:44:53,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:44:53,484 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;@4ad15668, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:44:53,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-26 10:44:53,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 1104 states, 1096 states have (on average 1.8868613138686132) internal successors, (2068), 1103 states have internal predecessors, (2068), 0 states have call successors, (0), 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 10:44:53,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-26 10:44:53,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:53,526 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] [2023-11-26 10:44:53,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:44:53,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:53,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1184813438, now seen corresponding path program 1 times [2023-11-26 10:44:53,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:53,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990317908] [2023-11-26 10:44:53,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:53,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:54,141 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 10:44:54,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990317908] [2023-11-26 10:44:54,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990317908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:54,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:54,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:44:54,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257425457] [2023-11-26 10:44:54,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:54,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:54,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:54,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:54,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:54,206 INFO L87 Difference]: Start difference. First operand has 1104 states, 1096 states have (on average 1.8868613138686132) internal successors, (2068), 1103 states have internal predecessors, (2068), 0 states have call successors, (0), 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 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 10:44:54,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:54,529 INFO L93 Difference]: Finished difference Result 1461 states and 2647 transitions. [2023-11-26 10:44:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:54,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-26 10:44:54,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:54,555 INFO L225 Difference]: With dead ends: 1461 [2023-11-26 10:44:54,556 INFO L226 Difference]: Without dead ends: 1287 [2023-11-26 10:44:54,561 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 10:44:54,564 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 968 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:54,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 3322 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:44:54,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2023-11-26 10:44:54,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1279. [2023-11-26 10:44:54,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1272 states have (on average 1.3168238993710693) internal successors, (1675), 1278 states have internal predecessors, (1675), 0 states have call successors, (0), 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 10:44:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1675 transitions. [2023-11-26 10:44:54,695 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1675 transitions. Word has length 63 [2023-11-26 10:44:54,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:54,696 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1675 transitions. [2023-11-26 10:44:54,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 10:44:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1675 transitions. [2023-11-26 10:44:54,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-26 10:44:54,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:54,701 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] [2023-11-26 10:44:54,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:44:54,701 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:44:54,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:54,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2003436219, now seen corresponding path program 1 times [2023-11-26 10:44:54,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:54,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379546681] [2023-11-26 10:44:54,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:54,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:54,875 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 10:44:54,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:54,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379546681] [2023-11-26 10:44:54,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379546681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:54,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:54,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:44:54,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157449430] [2023-11-26 10:44:54,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:54,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:54,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:54,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:54,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:54,879 INFO L87 Difference]: Start difference. First operand 1279 states and 1675 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 10:44:54,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:54,987 INFO L93 Difference]: Finished difference Result 1929 states and 2621 transitions. [2023-11-26 10:44:54,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:54,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-26 10:44:54,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:54,998 INFO L225 Difference]: With dead ends: 1929 [2023-11-26 10:44:54,998 INFO L226 Difference]: Without dead ends: 1575 [2023-11-26 10:44:55,001 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 10:44:55,003 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 717 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:55,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 2313 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:44:55,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2023-11-26 10:44:55,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1567. [2023-11-26 10:44:55,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1560 states have (on average 1.3403846153846153) internal successors, (2091), 1566 states have internal predecessors, (2091), 0 states have call successors, (0), 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 10:44:55,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2091 transitions. [2023-11-26 10:44:55,055 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2091 transitions. Word has length 63 [2023-11-26 10:44:55,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:55,056 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 2091 transitions. [2023-11-26 10:44:55,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 10:44:55,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2091 transitions. [2023-11-26 10:44:55,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-26 10:44:55,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:55,061 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] [2023-11-26 10:44:55,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:44:55,062 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:44:55,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:55,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1542392687, now seen corresponding path program 1 times [2023-11-26 10:44:55,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:55,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625924240] [2023-11-26 10:44:55,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:55,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:55,372 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 10:44:55,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:55,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625924240] [2023-11-26 10:44:55,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625924240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:55,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:55,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:44:55,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639992070] [2023-11-26 10:44:55,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:55,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:44:55,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:55,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:44:55,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:44:55,377 INFO L87 Difference]: Start difference. First operand 1567 states and 2091 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 10:44:56,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:56,372 INFO L93 Difference]: Finished difference Result 3041 states and 4183 transitions. [2023-11-26 10:44:56,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:44:56,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-26 10:44:56,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:56,386 INFO L225 Difference]: With dead ends: 3041 [2023-11-26 10:44:56,386 INFO L226 Difference]: Without dead ends: 1782 [2023-11-26 10:44:56,389 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 10:44:56,390 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 3665 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3665 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:56,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3665 Valid, 832 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 10:44:56,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2023-11-26 10:44:56,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1774. [2023-11-26 10:44:56,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1767 states have (on average 1.3887945670628183) internal successors, (2454), 1773 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:44:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2454 transitions. [2023-11-26 10:44:56,452 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2454 transitions. Word has length 63 [2023-11-26 10:44:56,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:56,452 INFO L495 AbstractCegarLoop]: Abstraction has 1774 states and 2454 transitions. [2023-11-26 10:44:56,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 10:44:56,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2454 transitions. [2023-11-26 10:44:56,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 10:44:56,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:56,457 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] [2023-11-26 10:44:56,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:44:56,457 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:44:56,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:56,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1152487412, now seen corresponding path program 1 times [2023-11-26 10:44:56,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:56,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668475605] [2023-11-26 10:44:56,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:56,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:56,584 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 10:44:56,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:56,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668475605] [2023-11-26 10:44:56,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668475605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:56,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:56,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:44:56,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704309045] [2023-11-26 10:44:56,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:56,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:56,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:56,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:56,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:56,592 INFO L87 Difference]: Start difference. First operand 1774 states and 2454 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 10:44:56,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:56,677 INFO L93 Difference]: Finished difference Result 3468 states and 4870 transitions. [2023-11-26 10:44:56,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:56,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2023-11-26 10:44:56,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:56,693 INFO L225 Difference]: With dead ends: 3468 [2023-11-26 10:44:56,694 INFO L226 Difference]: Without dead ends: 2488 [2023-11-26 10:44:56,696 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 10:44:56,697 INFO L413 NwaCegarLoop]: 1419 mSDtfsCounter, 897 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:56,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 2136 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:44:56,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2023-11-26 10:44:56,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2476. [2023-11-26 10:44:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2469 states have (on average 1.374645605508303) internal successors, (3394), 2475 states have internal predecessors, (3394), 0 states have call successors, (0), 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 10:44:56,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3394 transitions. [2023-11-26 10:44:56,817 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3394 transitions. Word has length 64 [2023-11-26 10:44:56,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:56,820 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3394 transitions. [2023-11-26 10:44:56,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 10:44:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3394 transitions. [2023-11-26 10:44:56,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 10:44:56,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:56,827 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] [2023-11-26 10:44:56,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:44:56,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:44:56,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:56,828 INFO L85 PathProgramCache]: Analyzing trace with hash -998210018, now seen corresponding path program 1 times [2023-11-26 10:44:56,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:56,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327435381] [2023-11-26 10:44:56,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:56,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:57,037 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 10:44:57,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:57,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327435381] [2023-11-26 10:44:57,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327435381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:57,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:57,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:44:57,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972052142] [2023-11-26 10:44:57,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:57,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:44:57,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:57,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:44:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:44:57,059 INFO L87 Difference]: Start difference. First operand 2476 states and 3394 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 10:44:57,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:57,796 INFO L93 Difference]: Finished difference Result 4727 states and 6562 transitions. [2023-11-26 10:44:57,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:44:57,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2023-11-26 10:44:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:57,812 INFO L225 Difference]: With dead ends: 4727 [2023-11-26 10:44:57,812 INFO L226 Difference]: Without dead ends: 2855 [2023-11-26 10:44:57,815 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 10:44:57,816 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 3060 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:57,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 694 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 10:44:57,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2023-11-26 10:44:57,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2841. [2023-11-26 10:44:57,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2834 states have (on average 1.3662667607621737) internal successors, (3872), 2840 states have internal predecessors, (3872), 0 states have call successors, (0), 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 10:44:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 3872 transitions. [2023-11-26 10:44:57,901 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 3872 transitions. Word has length 64 [2023-11-26 10:44:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:57,901 INFO L495 AbstractCegarLoop]: Abstraction has 2841 states and 3872 transitions. [2023-11-26 10:44:57,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 10:44:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 3872 transitions. [2023-11-26 10:44:57,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 10:44:57,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:57,906 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] [2023-11-26 10:44:57,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:44:57,907 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:44:57,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1760122824, now seen corresponding path program 1 times [2023-11-26 10:44:57,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:57,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789030253] [2023-11-26 10:44:57,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:57,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:58,065 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 10:44:58,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:58,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789030253] [2023-11-26 10:44:58,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789030253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:58,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:58,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:44:58,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392801475] [2023-11-26 10:44:58,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:58,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:44:58,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:58,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:44:58,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:44:58,073 INFO L87 Difference]: Start difference. First operand 2841 states and 3872 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 10:44:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:58,761 INFO L93 Difference]: Finished difference Result 5891 states and 8171 transitions. [2023-11-26 10:44:58,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:44:58,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2023-11-26 10:44:58,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:58,793 INFO L225 Difference]: With dead ends: 5891 [2023-11-26 10:44:58,793 INFO L226 Difference]: Without dead ends: 3483 [2023-11-26 10:44:58,798 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 10:44:58,803 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 2806 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:58,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2806 Valid, 662 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 10:44:58,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2023-11-26 10:44:58,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3466. [2023-11-26 10:44:58,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3466 states, 3459 states have (on average 1.3787221740387394) internal successors, (4769), 3465 states have internal predecessors, (4769), 0 states have call successors, (0), 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 10:44:58,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 4769 transitions. [2023-11-26 10:44:58,911 INFO L78 Accepts]: Start accepts. Automaton has 3466 states and 4769 transitions. Word has length 64 [2023-11-26 10:44:58,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:58,913 INFO L495 AbstractCegarLoop]: Abstraction has 3466 states and 4769 transitions. [2023-11-26 10:44:58,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 10:44:58,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3466 states and 4769 transitions. [2023-11-26 10:44:58,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 10:44:58,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:58,918 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] [2023-11-26 10:44:58,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:44:58,919 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:44:58,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:58,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1332635061, now seen corresponding path program 1 times [2023-11-26 10:44:58,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:58,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504438480] [2023-11-26 10:44:58,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:58,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:59,128 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 10:44:59,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:59,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504438480] [2023-11-26 10:44:59,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504438480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:59,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:59,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:44:59,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247223390] [2023-11-26 10:44:59,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:59,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:44:59,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:59,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:44:59,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:44:59,132 INFO L87 Difference]: Start difference. First operand 3466 states and 4769 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 10:44:59,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:59,737 INFO L93 Difference]: Finished difference Result 8768 states and 12277 transitions. [2023-11-26 10:44:59,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:44:59,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-11-26 10:44:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:59,768 INFO L225 Difference]: With dead ends: 8768 [2023-11-26 10:44:59,768 INFO L226 Difference]: Without dead ends: 5540 [2023-11-26 10:44:59,774 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 10:44:59,776 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 2468 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:59,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 591 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:44:59,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2023-11-26 10:44:59,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 5532. [2023-11-26 10:44:59,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5532 states, 5525 states have (on average 1.397285067873303) internal successors, (7720), 5531 states have internal predecessors, (7720), 0 states have call successors, (0), 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 10:44:59,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 7720 transitions. [2023-11-26 10:44:59,955 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 7720 transitions. Word has length 65 [2023-11-26 10:44:59,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:59,956 INFO L495 AbstractCegarLoop]: Abstraction has 5532 states and 7720 transitions. [2023-11-26 10:44:59,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 10:44:59,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 7720 transitions. [2023-11-26 10:44:59,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-26 10:44:59,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:59,962 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] [2023-11-26 10:44:59,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:44:59,962 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:44:59,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:59,963 INFO L85 PathProgramCache]: Analyzing trace with hash -254635222, now seen corresponding path program 1 times [2023-11-26 10:44:59,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:59,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722973815] [2023-11-26 10:44:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:59,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:00,059 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 10:45:00,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:00,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722973815] [2023-11-26 10:45:00,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722973815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:00,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:00,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:45:00,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155058239] [2023-11-26 10:45:00,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:00,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:00,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:00,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:00,062 INFO L87 Difference]: Start difference. First operand 5532 states and 7720 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 10:45:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:00,178 INFO L93 Difference]: Finished difference Result 12130 states and 17010 transitions. [2023-11-26 10:45:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:00,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-11-26 10:45:00,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:00,224 INFO L225 Difference]: With dead ends: 12130 [2023-11-26 10:45:00,224 INFO L226 Difference]: Without dead ends: 7616 [2023-11-26 10:45:00,231 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 10:45:00,232 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 498 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:00,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1359 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:45:00,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7616 states. [2023-11-26 10:45:00,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7616 to 7581. [2023-11-26 10:45:00,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7581 states, 7574 states have (on average 1.3721943490889887) internal successors, (10393), 7580 states have internal predecessors, (10393), 0 states have call successors, (0), 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 10:45:00,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7581 states to 7581 states and 10393 transitions. [2023-11-26 10:45:00,416 INFO L78 Accepts]: Start accepts. Automaton has 7581 states and 10393 transitions. Word has length 66 [2023-11-26 10:45:00,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:00,416 INFO L495 AbstractCegarLoop]: Abstraction has 7581 states and 10393 transitions. [2023-11-26 10:45:00,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 10:45:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 7581 states and 10393 transitions. [2023-11-26 10:45:00,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 10:45:00,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:00,427 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 10:45:00,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:45:00,428 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:00,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:00,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2145810939, now seen corresponding path program 1 times [2023-11-26 10:45:00,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:00,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205141679] [2023-11-26 10:45:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:00,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:00,752 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 10:45:00,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:00,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205141679] [2023-11-26 10:45:00,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205141679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:00,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:00,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:45:00,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242430575] [2023-11-26 10:45:00,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:00,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:45:00,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:00,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:45:00,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:45:00,756 INFO L87 Difference]: Start difference. First operand 7581 states and 10393 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:01,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:01,942 INFO L93 Difference]: Finished difference Result 37660 states and 52822 transitions. [2023-11-26 10:45:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:45:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:02,035 INFO L225 Difference]: With dead ends: 37660 [2023-11-26 10:45:02,035 INFO L226 Difference]: Without dead ends: 34009 [2023-11-26 10:45:02,050 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 10:45:02,051 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 5101 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:02,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 1131 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 10:45:02,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34009 states. [2023-11-26 10:45:02,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34009 to 7649. [2023-11-26 10:45:02,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 7642 states have (on average 1.3714996074326093) internal successors, (10481), 7648 states have internal predecessors, (10481), 0 states have call successors, (0), 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 10:45:02,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 10481 transitions. [2023-11-26 10:45:02,590 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 10481 transitions. Word has length 67 [2023-11-26 10:45:02,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:02,591 INFO L495 AbstractCegarLoop]: Abstraction has 7649 states and 10481 transitions. [2023-11-26 10:45:02,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:02,592 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 10481 transitions. [2023-11-26 10:45:02,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 10:45:02,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:02,601 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 10:45:02,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:45:02,602 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:02,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:02,603 INFO L85 PathProgramCache]: Analyzing trace with hash -2044326195, now seen corresponding path program 1 times [2023-11-26 10:45:02,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:02,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798842797] [2023-11-26 10:45:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:02,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:02,853 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 10:45:02,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:02,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798842797] [2023-11-26 10:45:02,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798842797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:02,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:02,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:45:02,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434450238] [2023-11-26 10:45:02,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:02,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:45:02,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:02,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:45:02,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:45:02,857 INFO L87 Difference]: Start difference. First operand 7649 states and 10481 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:04,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:04,036 INFO L93 Difference]: Finished difference Result 33563 states and 46914 transitions. [2023-11-26 10:45:04,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:45:04,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:04,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:04,103 INFO L225 Difference]: With dead ends: 33563 [2023-11-26 10:45:04,103 INFO L226 Difference]: Without dead ends: 30094 [2023-11-26 10:45:04,111 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 10:45:04,112 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 4644 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4644 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:04,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4644 Valid, 1117 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 10:45:04,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30094 states. [2023-11-26 10:45:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30094 to 7771. [2023-11-26 10:45:04,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7771 states, 7764 states have (on average 1.3708140133951572) internal successors, (10643), 7770 states have internal predecessors, (10643), 0 states have call successors, (0), 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 10:45:04,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7771 states to 7771 states and 10643 transitions. [2023-11-26 10:45:04,498 INFO L78 Accepts]: Start accepts. Automaton has 7771 states and 10643 transitions. Word has length 67 [2023-11-26 10:45:04,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:04,499 INFO L495 AbstractCegarLoop]: Abstraction has 7771 states and 10643 transitions. [2023-11-26 10:45:04,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:04,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7771 states and 10643 transitions. [2023-11-26 10:45:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 10:45:04,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:04,509 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 10:45:04,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:45:04,510 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:04,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:04,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1189983517, now seen corresponding path program 1 times [2023-11-26 10:45:04,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:04,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200901524] [2023-11-26 10:45:04,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:04,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:04,798 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 10:45:04,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:04,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200901524] [2023-11-26 10:45:04,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200901524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:04,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:04,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:45:04,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139437115] [2023-11-26 10:45:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:04,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:45:04,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:04,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:45:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:45:04,802 INFO L87 Difference]: Start difference. First operand 7771 states and 10643 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:06,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:06,068 INFO L93 Difference]: Finished difference Result 29403 states and 40967 transitions. [2023-11-26 10:45:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:45:06,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:06,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:06,124 INFO L225 Difference]: With dead ends: 29403 [2023-11-26 10:45:06,124 INFO L226 Difference]: Without dead ends: 26198 [2023-11-26 10:45:06,134 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 10:45:06,135 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 3377 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:06,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 1243 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 10:45:06,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26198 states. [2023-11-26 10:45:06,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26198 to 7842. [2023-11-26 10:45:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7842 states, 7835 states have (on average 1.3710274409700063) internal successors, (10742), 7841 states have internal predecessors, (10742), 0 states have call successors, (0), 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 10:45:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7842 states to 7842 states and 10742 transitions. [2023-11-26 10:45:06,546 INFO L78 Accepts]: Start accepts. Automaton has 7842 states and 10742 transitions. Word has length 67 [2023-11-26 10:45:06,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:06,546 INFO L495 AbstractCegarLoop]: Abstraction has 7842 states and 10742 transitions. [2023-11-26 10:45:06,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:06,547 INFO L276 IsEmpty]: Start isEmpty. Operand 7842 states and 10742 transitions. [2023-11-26 10:45:06,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 10:45:06,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:06,558 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 10:45:06,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:45:06,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:06,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:06,560 INFO L85 PathProgramCache]: Analyzing trace with hash -92881536, now seen corresponding path program 1 times [2023-11-26 10:45:06,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:06,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811790130] [2023-11-26 10:45:06,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:06,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:06,799 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 10:45:06,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:06,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811790130] [2023-11-26 10:45:06,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811790130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:06,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:06,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:45:06,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246419046] [2023-11-26 10:45:06,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:06,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:45:06,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:06,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:45:06,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:45:06,802 INFO L87 Difference]: Start difference. First operand 7842 states and 10742 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:07,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:07,728 INFO L93 Difference]: Finished difference Result 26991 states and 37396 transitions. [2023-11-26 10:45:07,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:45:07,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:07,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:07,764 INFO L225 Difference]: With dead ends: 26991 [2023-11-26 10:45:07,764 INFO L226 Difference]: Without dead ends: 23320 [2023-11-26 10:45:07,773 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 10:45:07,774 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 4495 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:07,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4495 Valid, 1070 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:45:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23320 states. [2023-11-26 10:45:08,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23320 to 7877. [2023-11-26 10:45:08,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7877 states, 7870 states have (on average 1.3706480304955528) internal successors, (10787), 7876 states have internal predecessors, (10787), 0 states have call successors, (0), 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 10:45:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7877 states to 7877 states and 10787 transitions. [2023-11-26 10:45:08,157 INFO L78 Accepts]: Start accepts. Automaton has 7877 states and 10787 transitions. Word has length 67 [2023-11-26 10:45:08,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:08,157 INFO L495 AbstractCegarLoop]: Abstraction has 7877 states and 10787 transitions. [2023-11-26 10:45:08,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 10:45:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 7877 states and 10787 transitions. [2023-11-26 10:45:08,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 10:45:08,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:08,167 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 10:45:08,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:45:08,167 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:08,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:08,168 INFO L85 PathProgramCache]: Analyzing trace with hash 680595235, now seen corresponding path program 1 times [2023-11-26 10:45:08,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:08,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366779751] [2023-11-26 10:45:08,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:08,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:08,530 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 10:45:08,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:08,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366779751] [2023-11-26 10:45:08,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366779751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:08,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:08,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 10:45:08,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229555837] [2023-11-26 10:45:08,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:08,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:45:08,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:08,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:45:08,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:45:08,534 INFO L87 Difference]: Start difference. First operand 7877 states and 10787 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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 10:45:09,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:09,505 INFO L93 Difference]: Finished difference Result 19994 states and 27816 transitions. [2023-11-26 10:45:09,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:45:09,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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 10:45:09,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:09,531 INFO L225 Difference]: With dead ends: 19994 [2023-11-26 10:45:09,531 INFO L226 Difference]: Without dead ends: 14481 [2023-11-26 10:45:09,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:45:09,545 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 2916 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:09,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2916 Valid, 1484 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 10:45:09,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14481 states. [2023-11-26 10:45:09,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14481 to 7571. [2023-11-26 10:45:09,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7571 states, 7564 states have (on average 1.3688524590163935) internal successors, (10354), 7570 states have internal predecessors, (10354), 0 states have call successors, (0), 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 10:45:09,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7571 states to 7571 states and 10354 transitions. [2023-11-26 10:45:09,768 INFO L78 Accepts]: Start accepts. Automaton has 7571 states and 10354 transitions. Word has length 68 [2023-11-26 10:45:09,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:09,768 INFO L495 AbstractCegarLoop]: Abstraction has 7571 states and 10354 transitions. [2023-11-26 10:45:09,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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 10:45:09,769 INFO L276 IsEmpty]: Start isEmpty. Operand 7571 states and 10354 transitions. [2023-11-26 10:45:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 10:45:09,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:09,777 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 10:45:09,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:45:09,778 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:09,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:09,778 INFO L85 PathProgramCache]: Analyzing trace with hash 718017329, now seen corresponding path program 1 times [2023-11-26 10:45:09,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:09,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744927446] [2023-11-26 10:45:09,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:09,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:10,293 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 10:45:10,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:10,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744927446] [2023-11-26 10:45:10,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744927446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:10,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:10,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:45:10,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440701082] [2023-11-26 10:45:10,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:10,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:45:10,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:10,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:45:10,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:45:10,296 INFO L87 Difference]: Start difference. First operand 7571 states and 10354 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 10:45:11,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:11,732 INFO L93 Difference]: Finished difference Result 24650 states and 34491 transitions. [2023-11-26 10:45:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:45:11,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 10:45:11,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:11,762 INFO L225 Difference]: With dead ends: 24650 [2023-11-26 10:45:11,762 INFO L226 Difference]: Without dead ends: 19595 [2023-11-26 10:45:11,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:45:11,773 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 2624 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2624 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:11,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2624 Valid, 2595 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 10:45:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19595 states. [2023-11-26 10:45:12,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19595 to 7436. [2023-11-26 10:45:12,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 7429 states have (on average 1.3682864450127876) internal successors, (10165), 7435 states have internal predecessors, (10165), 0 states have call successors, (0), 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 10:45:12,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 10165 transitions. [2023-11-26 10:45:12,112 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 10165 transitions. Word has length 68 [2023-11-26 10:45:12,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:12,112 INFO L495 AbstractCegarLoop]: Abstraction has 7436 states and 10165 transitions. [2023-11-26 10:45:12,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 10:45:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 10165 transitions. [2023-11-26 10:45:12,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 10:45:12,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:12,121 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 10:45:12,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:45:12,122 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:12,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:12,123 INFO L85 PathProgramCache]: Analyzing trace with hash -2097490812, now seen corresponding path program 1 times [2023-11-26 10:45:12,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:12,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622790909] [2023-11-26 10:45:12,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:12,542 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 10:45:12,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:12,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622790909] [2023-11-26 10:45:12,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622790909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:12,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:12,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:45:12,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257614494] [2023-11-26 10:45:12,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:12,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:45:12,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:12,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:45:12,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:45:12,545 INFO L87 Difference]: Start difference. First operand 7436 states and 10165 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 10:45:13,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:13,877 INFO L93 Difference]: Finished difference Result 24343 states and 34066 transitions. [2023-11-26 10:45:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 10:45:13,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 10:45:13,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:13,905 INFO L225 Difference]: With dead ends: 24343 [2023-11-26 10:45:13,905 INFO L226 Difference]: Without dead ends: 19512 [2023-11-26 10:45:13,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-11-26 10:45:13,917 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 2872 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2872 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:13,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2872 Valid, 2158 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 10:45:13,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19512 states. [2023-11-26 10:45:14,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19512 to 7412. [2023-11-26 10:45:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7412 states, 7405 states have (on average 1.3674544226873735) internal successors, (10126), 7411 states have internal predecessors, (10126), 0 states have call successors, (0), 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 10:45:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7412 states to 7412 states and 10126 transitions. [2023-11-26 10:45:14,268 INFO L78 Accepts]: Start accepts. Automaton has 7412 states and 10126 transitions. Word has length 68 [2023-11-26 10:45:14,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:14,269 INFO L495 AbstractCegarLoop]: Abstraction has 7412 states and 10126 transitions. [2023-11-26 10:45:14,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 10:45:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 7412 states and 10126 transitions. [2023-11-26 10:45:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 10:45:14,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:14,283 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 10:45:14,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:45:14,284 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:14,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2111634662, now seen corresponding path program 1 times [2023-11-26 10:45:14,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:14,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763804620] [2023-11-26 10:45:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:14,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:14,774 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 10:45:14,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:14,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763804620] [2023-11-26 10:45:14,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763804620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:14,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:14,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:45:14,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126169436] [2023-11-26 10:45:14,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:14,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:45:14,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:14,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:45:14,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:45:14,780 INFO L87 Difference]: Start difference. First operand 7412 states and 10126 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 10:45:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:16,248 INFO L93 Difference]: Finished difference Result 24148 states and 33783 transitions. [2023-11-26 10:45:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:45:16,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 10:45:16,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:16,272 INFO L225 Difference]: With dead ends: 24148 [2023-11-26 10:45:16,272 INFO L226 Difference]: Without dead ends: 19350 [2023-11-26 10:45:16,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:45:16,282 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 2415 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:16,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 2629 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 10:45:16,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19350 states. [2023-11-26 10:45:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19350 to 7403. [2023-11-26 10:45:16,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7403 states, 7396 states have (on average 1.3668199026500811) internal successors, (10109), 7402 states have internal predecessors, (10109), 0 states have call successors, (0), 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 10:45:16,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7403 states to 7403 states and 10109 transitions. [2023-11-26 10:45:16,541 INFO L78 Accepts]: Start accepts. Automaton has 7403 states and 10109 transitions. Word has length 68 [2023-11-26 10:45:16,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:16,541 INFO L495 AbstractCegarLoop]: Abstraction has 7403 states and 10109 transitions. [2023-11-26 10:45:16,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 10:45:16,541 INFO L276 IsEmpty]: Start isEmpty. Operand 7403 states and 10109 transitions. [2023-11-26 10:45:16,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-26 10:45:16,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:16,549 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 10:45:16,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 10:45:16,550 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:16,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:16,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1885132627, now seen corresponding path program 1 times [2023-11-26 10:45:16,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:16,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638111233] [2023-11-26 10:45:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:16,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:17,665 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 10:45:17,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:17,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638111233] [2023-11-26 10:45:17,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638111233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:17,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:17,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 10:45:17,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515322547] [2023-11-26 10:45:17,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:17,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:45:17,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:17,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:45:17,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:45:17,669 INFO L87 Difference]: Start difference. First operand 7403 states and 10109 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 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 10:45:20,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:20,713 INFO L93 Difference]: Finished difference Result 61048 states and 86155 transitions. [2023-11-26 10:45:20,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-26 10:45:20,713 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 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 10:45:20,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:20,767 INFO L225 Difference]: With dead ends: 61048 [2023-11-26 10:45:20,768 INFO L226 Difference]: Without dead ends: 56253 [2023-11-26 10:45:20,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2023-11-26 10:45:20,788 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 5553 mSDsluCounter, 6354 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5553 SdHoareTripleChecker+Valid, 7170 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:20,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5553 Valid, 7170 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-26 10:45:20,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56253 states. [2023-11-26 10:45:21,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56253 to 7389. [2023-11-26 10:45:21,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7389 states, 7383 states have (on average 1.3658404442638494) internal successors, (10084), 7388 states have internal predecessors, (10084), 0 states have call successors, (0), 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 10:45:21,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7389 states to 7389 states and 10084 transitions. [2023-11-26 10:45:21,219 INFO L78 Accepts]: Start accepts. Automaton has 7389 states and 10084 transitions. Word has length 69 [2023-11-26 10:45:21,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:21,220 INFO L495 AbstractCegarLoop]: Abstraction has 7389 states and 10084 transitions. [2023-11-26 10:45:21,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 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 10:45:21,220 INFO L276 IsEmpty]: Start isEmpty. Operand 7389 states and 10084 transitions. [2023-11-26 10:45:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-26 10:45:21,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:21,228 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 10:45:21,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 10:45:21,229 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:21,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:21,230 INFO L85 PathProgramCache]: Analyzing trace with hash -578802053, now seen corresponding path program 1 times [2023-11-26 10:45:21,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:21,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022085796] [2023-11-26 10:45:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:21,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:21,932 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 10:45:21,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:21,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022085796] [2023-11-26 10:45:21,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022085796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:21,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:21,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 10:45:21,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703995051] [2023-11-26 10:45:21,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:21,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 10:45:21,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:21,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 10:45:21,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:45:21,935 INFO L87 Difference]: Start difference. First operand 7389 states and 10084 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 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 10:45:23,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:23,961 INFO L93 Difference]: Finished difference Result 45270 states and 63571 transitions. [2023-11-26 10:45:23,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 10:45:23,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 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 10:45:23,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:24,016 INFO L225 Difference]: With dead ends: 45270 [2023-11-26 10:45:24,016 INFO L226 Difference]: Without dead ends: 40213 [2023-11-26 10:45:24,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2023-11-26 10:45:24,028 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 6536 mSDsluCounter, 3581 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 4580 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:24,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6536 Valid, 4580 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 10:45:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40213 states. [2023-11-26 10:45:24,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40213 to 7140. [2023-11-26 10:45:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7140 states, 7135 states have (on average 1.3628591450595655) internal successors, (9724), 7139 states have internal predecessors, (9724), 0 states have call successors, (0), 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 10:45:24,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 9724 transitions. [2023-11-26 10:45:24,314 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 9724 transitions. Word has length 69 [2023-11-26 10:45:24,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:24,314 INFO L495 AbstractCegarLoop]: Abstraction has 7140 states and 9724 transitions. [2023-11-26 10:45:24,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 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 10:45:24,315 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 9724 transitions. [2023-11-26 10:45:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-26 10:45:24,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:24,323 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 10:45:24,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 10:45:24,323 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:24,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1227479287, now seen corresponding path program 1 times [2023-11-26 10:45:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:24,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601207847] [2023-11-26 10:45:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:24,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,411 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 10:45:24,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:24,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601207847] [2023-11-26 10:45:24,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601207847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:24,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:24,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:45:24,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228119222] [2023-11-26 10:45:24,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:24,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:24,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:24,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:24,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:24,414 INFO L87 Difference]: Start difference. First operand 7140 states and 9724 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 10:45:24,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:24,471 INFO L93 Difference]: Finished difference Result 10862 states and 14916 transitions. [2023-11-26 10:45:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:24,472 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 10:45:24,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:24,480 INFO L225 Difference]: With dead ends: 10862 [2023-11-26 10:45:24,480 INFO L226 Difference]: Without dead ends: 7146 [2023-11-26 10:45:24,485 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 10:45:24,486 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 427 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:24,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1354 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:45:24,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7146 states. [2023-11-26 10:45:24,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7146 to 7140. [2023-11-26 10:45:24,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7140 states, 7135 states have (on average 1.3531885073580938) internal successors, (9655), 7139 states have internal predecessors, (9655), 0 states have call successors, (0), 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 10:45:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 9655 transitions. [2023-11-26 10:45:24,596 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 9655 transitions. Word has length 69 [2023-11-26 10:45:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:24,597 INFO L495 AbstractCegarLoop]: Abstraction has 7140 states and 9655 transitions. [2023-11-26 10:45:24,597 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 10:45:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 9655 transitions. [2023-11-26 10:45:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-26 10:45:24,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:24,604 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 10:45:24,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 10:45:24,605 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-11-26 10:45:24,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:24,605 INFO L85 PathProgramCache]: Analyzing trace with hash -360349785, now seen corresponding path program 1 times [2023-11-26 10:45:24,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:24,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457545209] [2023-11-26 10:45:24,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:24,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:25,245 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 10:45:25,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:25,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457545209] [2023-11-26 10:45:25,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457545209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:25,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:25,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 10:45:25,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556701567] [2023-11-26 10:45:25,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:25,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 10:45:25,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:25,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 10:45:25,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:45:25,248 INFO L87 Difference]: Start difference. First operand 7140 states and 9655 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 11 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)