./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --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 ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:35:05,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:35:05,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:35:05,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:35:05,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:35:05,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:35:05,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:35:05,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:35:05,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:35:05,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:35:05,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:35:05,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:35:05,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:35:05,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:35:05,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:35:05,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:35:05,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:35:05,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:35:05,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:35:05,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:35:05,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:35:05,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:35:05,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:35:05,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:35:05,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:35:05,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:35:05,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:35:05,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:35:05,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:35:05,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:35:05,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:35:05,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:35:05,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:35:05,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:35:05,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:35:05,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:35:05,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:35:05,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:35:05,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:35:05,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:35:05,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:35:05,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:35:05,538 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:35:05,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:35:05,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:35:05,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:35:05,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:35:05,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:35:05,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:35:05,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:35:05,546 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:35:05,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:35:05,547 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:35:05,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:35:05,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:35:05,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:35:05,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:35:05,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:35:05,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:35:05,549 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:35:05,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:35:05,549 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:35:05,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:35:05,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:35:05,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:35:05,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:35:05,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:35:05,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:35:05,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:35:05,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:35:05,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:35:05,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:35:05,552 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:35:05,552 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:35:05,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:35:05,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 [2022-11-16 11:35:05,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:35:05,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:35:05,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:35:05,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:35:05,899 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:35:05,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 11:35:05,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/data/51a2baaf0/6075524dca4e4ff98c129c57d45dc9df/FLAG9069dc416 [2022-11-16 11:35:06,910 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:35:06,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 11:35:06,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/data/51a2baaf0/6075524dca4e4ff98c129c57d45dc9df/FLAG9069dc416 [2022-11-16 11:35:07,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/data/51a2baaf0/6075524dca4e4ff98c129c57d45dc9df [2022-11-16 11:35:07,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:35:07,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:35:07,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:35:07,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:35:07,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:35:07,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:07" (1/1) ... [2022-11-16 11:35:07,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb1d8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:07, skipping insertion in model container [2022-11-16 11:35:07,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:07" (1/1) ... [2022-11-16 11:35:07,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:35:07,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:35:08,055 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13606,13619] [2022-11-16 11:35:08,094 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19227,19240] [2022-11-16 11:35:08,110 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20416,20429] [2022-11-16 11:35:08,148 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22562,22575] [2022-11-16 11:35:08,190 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25842,25855] [2022-11-16 11:35:08,242 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32130,32143] [2022-11-16 11:35:08,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:35:08,937 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:35:09,004 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13606,13619] [2022-11-16 11:35:09,020 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19227,19240] [2022-11-16 11:35:09,029 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20416,20429] [2022-11-16 11:35:09,038 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22562,22575] [2022-11-16 11:35:09,050 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25842,25855] [2022-11-16 11:35:09,072 WARN L229 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_7f2578ee-acfd-4478-8818-b980b7d544ca/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32130,32143] [2022-11-16 11:35:09,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:35:09,556 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:35:09,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09 WrapperNode [2022-11-16 11:35:09,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:35:09,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:35:09,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:35:09,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:35:09,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,799 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8789 [2022-11-16 11:35:09,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:35:09,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:35:09,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:35:09,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:35:09,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,954 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:09,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:35:09,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:35:09,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:35:09,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:35:09,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (1/1) ... [2022-11-16 11:35:10,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:35:10,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:35:10,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:35:10,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2578ee-acfd-4478-8818-b980b7d544ca/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:35:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:35:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:35:10,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:35:10,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:35:10,545 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:35:10,548 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:35:14,776 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:35:14,804 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:35:14,804 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:35:14,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:35:14 BoogieIcfgContainer [2022-11-16 11:35:14,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:35:14,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:35:14,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:35:14,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:35:14,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:35:07" (1/3) ... [2022-11-16 11:35:14,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a1db40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:14, skipping insertion in model container [2022-11-16 11:35:14,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:09" (2/3) ... [2022-11-16 11:35:14,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a1db40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:14, skipping insertion in model container [2022-11-16 11:35:14,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:35:14" (3/3) ... [2022-11-16 11:35:14,823 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 11:35:14,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:35:14,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 11:35:14,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:35:14,965 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=LoopsAndPotentialCycles, 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;@5abaec53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:35:14,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-16 11:35:14,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 1751 states, 1744 states have (on average 1.8004587155963303) internal successors, (3140), 1750 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 11:35:15,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:15,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:15,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:15,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:15,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1733440182, now seen corresponding path program 1 times [2022-11-16 11:35:15,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:15,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694207337] [2022-11-16 11:35:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:15,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:15,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:15,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694207337] [2022-11-16 11:35:15,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694207337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:15,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:15,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:35:15,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407285477] [2022-11-16 11:35:15,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:15,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:35:15,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:15,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:35:15,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:35:15,615 INFO L87 Difference]: Start difference. First operand has 1751 states, 1744 states have (on average 1.8004587155963303) internal successors, (3140), 1750 states have internal predecessors, (3140), 0 states have call successors, (0), 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 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:16,235 INFO L93 Difference]: Finished difference Result 2512 states and 4420 transitions. [2022-11-16 11:35:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:35:16,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-16 11:35:16,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:16,268 INFO L225 Difference]: With dead ends: 2512 [2022-11-16 11:35:16,269 INFO L226 Difference]: Without dead ends: 2315 [2022-11-16 11:35:16,279 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 [2022-11-16 11:35:16,283 INFO L413 NwaCegarLoop]: 3623 mSDtfsCounter, 1878 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:16,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 5631 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:35:16,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2022-11-16 11:35:16,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2305. [2022-11-16 11:35:16,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2299 states have (on average 1.3057851239669422) internal successors, (3002), 2304 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:16,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3002 transitions. [2022-11-16 11:35:16,506 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3002 transitions. Word has length 75 [2022-11-16 11:35:16,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:16,507 INFO L495 AbstractCegarLoop]: Abstraction has 2305 states and 3002 transitions. [2022-11-16 11:35:16,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3002 transitions. [2022-11-16 11:35:16,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 11:35:16,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:16,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:16,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:35:16,519 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:16,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:16,521 INFO L85 PathProgramCache]: Analyzing trace with hash 992628656, now seen corresponding path program 1 times [2022-11-16 11:35:16,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:16,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381332269] [2022-11-16 11:35:16,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:16,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:16,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:16,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381332269] [2022-11-16 11:35:16,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381332269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:16,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:16,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:35:16,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920657533] [2022-11-16 11:35:16,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:16,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:35:16,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:16,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:35:16,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:35:16,770 INFO L87 Difference]: Start difference. First operand 2305 states and 3002 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:17,009 INFO L93 Difference]: Finished difference Result 3218 states and 4351 transitions. [2022-11-16 11:35:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:35:17,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-16 11:35:17,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:17,020 INFO L225 Difference]: With dead ends: 3218 [2022-11-16 11:35:17,020 INFO L226 Difference]: Without dead ends: 2759 [2022-11-16 11:35:17,025 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 [2022-11-16 11:35:17,026 INFO L413 NwaCegarLoop]: 2345 mSDtfsCounter, 1183 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:17,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 3768 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:35:17,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2022-11-16 11:35:17,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2749. [2022-11-16 11:35:17,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2743 states have (on average 1.3313889901567626) internal successors, (3652), 2748 states have internal predecessors, (3652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3652 transitions. [2022-11-16 11:35:17,166 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3652 transitions. Word has length 75 [2022-11-16 11:35:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:17,167 INFO L495 AbstractCegarLoop]: Abstraction has 2749 states and 3652 transitions. [2022-11-16 11:35:17,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3652 transitions. [2022-11-16 11:35:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 11:35:17,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:17,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:17,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:35:17,175 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:17,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:17,175 INFO L85 PathProgramCache]: Analyzing trace with hash -293589288, now seen corresponding path program 1 times [2022-11-16 11:35:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:17,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887876717] [2022-11-16 11:35:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:17,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:17,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:17,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:17,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887876717] [2022-11-16 11:35:17,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887876717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:17,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:17,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:35:17,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038774072] [2022-11-16 11:35:17,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:17,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:35:17,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:17,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:35:17,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:35:17,480 INFO L87 Difference]: Start difference. First operand 2749 states and 3652 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:18,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:18,806 INFO L93 Difference]: Finished difference Result 5032 states and 6903 transitions. [2022-11-16 11:35:18,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:35:18,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-16 11:35:18,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:18,816 INFO L225 Difference]: With dead ends: 5032 [2022-11-16 11:35:18,817 INFO L226 Difference]: Without dead ends: 2885 [2022-11-16 11:35:18,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:35:18,824 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 5807 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5807 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:18,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5807 Valid, 1211 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:35:18,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2022-11-16 11:35:19,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2875. [2022-11-16 11:35:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2869 states have (on average 1.3851516207737888) internal successors, (3974), 2874 states have internal predecessors, (3974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3974 transitions. [2022-11-16 11:35:19,022 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3974 transitions. Word has length 75 [2022-11-16 11:35:19,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:19,022 INFO L495 AbstractCegarLoop]: Abstraction has 2875 states and 3974 transitions. [2022-11-16 11:35:19,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:19,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3974 transitions. [2022-11-16 11:35:19,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 11:35:19,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:19,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:19,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:35:19,030 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:19,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:19,031 INFO L85 PathProgramCache]: Analyzing trace with hash -659862233, now seen corresponding path program 1 times [2022-11-16 11:35:19,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:19,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667051781] [2022-11-16 11:35:19,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:19,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:19,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:19,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667051781] [2022-11-16 11:35:19,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667051781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:19,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:19,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:35:19,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830729597] [2022-11-16 11:35:19,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:19,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:35:19,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:19,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:35:19,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:35:19,256 INFO L87 Difference]: Start difference. First operand 2875 states and 3974 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:20,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:20,359 INFO L93 Difference]: Finished difference Result 6085 states and 8642 transitions. [2022-11-16 11:35:20,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:35:20,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-16 11:35:20,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:20,374 INFO L225 Difference]: With dead ends: 6085 [2022-11-16 11:35:20,374 INFO L226 Difference]: Without dead ends: 3652 [2022-11-16 11:35:20,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:35:20,379 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 4627 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4627 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:20,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4627 Valid, 990 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:35:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2022-11-16 11:35:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3642. [2022-11-16 11:35:20,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3636 states have (on average 1.4254675467546756) internal successors, (5183), 3641 states have internal predecessors, (5183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:20,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 5183 transitions. [2022-11-16 11:35:20,684 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 5183 transitions. Word has length 76 [2022-11-16 11:35:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:20,684 INFO L495 AbstractCegarLoop]: Abstraction has 3642 states and 5183 transitions. [2022-11-16 11:35:20,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:20,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 5183 transitions. [2022-11-16 11:35:20,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 11:35:20,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:20,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:20,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:35:20,690 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:20,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:20,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1653621631, now seen corresponding path program 1 times [2022-11-16 11:35:20,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:20,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363867707] [2022-11-16 11:35:20,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:20,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:20,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:20,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:20,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363867707] [2022-11-16 11:35:20,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363867707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:20,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:20,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:35:20,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094105274] [2022-11-16 11:35:20,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:20,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:35:20,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:20,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:35:20,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:35:20,790 INFO L87 Difference]: Start difference. First operand 3642 states and 5183 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:21,296 INFO L93 Difference]: Finished difference Result 7380 states and 10651 transitions. [2022-11-16 11:35:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:35:21,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-16 11:35:21,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:21,315 INFO L225 Difference]: With dead ends: 7380 [2022-11-16 11:35:21,316 INFO L226 Difference]: Without dead ends: 5163 [2022-11-16 11:35:21,322 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 [2022-11-16 11:35:21,326 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 1094 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:21,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 2702 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:35:21,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2022-11-16 11:35:21,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5145. [2022-11-16 11:35:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5139 states have (on average 1.4135045728741) internal successors, (7264), 5144 states have internal predecessors, (7264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:21,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 7264 transitions. [2022-11-16 11:35:21,776 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 7264 transitions. Word has length 77 [2022-11-16 11:35:21,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:21,777 INFO L495 AbstractCegarLoop]: Abstraction has 5145 states and 7264 transitions. [2022-11-16 11:35:21,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 7264 transitions. [2022-11-16 11:35:21,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 11:35:21,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:21,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:21,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:35:21,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:21,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:21,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1766360593, now seen corresponding path program 1 times [2022-11-16 11:35:21,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:21,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321969620] [2022-11-16 11:35:21,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:21,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:21,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:21,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321969620] [2022-11-16 11:35:21,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321969620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:21,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:21,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:35:21,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69664958] [2022-11-16 11:35:21,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:21,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:35:21,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:21,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:35:21,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:35:21,953 INFO L87 Difference]: Start difference. First operand 5145 states and 7264 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:22,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:22,648 INFO L93 Difference]: Finished difference Result 10416 states and 14895 transitions. [2022-11-16 11:35:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:35:22,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-16 11:35:22,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:22,674 INFO L225 Difference]: With dead ends: 10416 [2022-11-16 11:35:22,674 INFO L226 Difference]: Without dead ends: 7235 [2022-11-16 11:35:22,681 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 [2022-11-16 11:35:22,684 INFO L413 NwaCegarLoop]: 1775 mSDtfsCounter, 1112 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:22,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 2710 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:35:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2022-11-16 11:35:23,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 7213. [2022-11-16 11:35:23,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7213 states, 7207 states have (on average 1.4014152906896074) internal successors, (10100), 7212 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:23,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 10100 transitions. [2022-11-16 11:35:23,304 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 10100 transitions. Word has length 77 [2022-11-16 11:35:23,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:23,304 INFO L495 AbstractCegarLoop]: Abstraction has 7213 states and 10100 transitions. [2022-11-16 11:35:23,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:23,305 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 10100 transitions. [2022-11-16 11:35:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 11:35:23,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:23,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:23,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:35:23,316 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:23,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:23,317 INFO L85 PathProgramCache]: Analyzing trace with hash -775572248, now seen corresponding path program 1 times [2022-11-16 11:35:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:23,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105386286] [2022-11-16 11:35:23,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:23,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:23,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:23,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:23,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105386286] [2022-11-16 11:35:23,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105386286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:23,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:23,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:35:23,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766750116] [2022-11-16 11:35:23,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:23,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:35:23,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:23,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:35:23,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:35:23,435 INFO L87 Difference]: Start difference. First operand 7213 states and 10100 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:24,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:24,275 INFO L93 Difference]: Finished difference Result 16568 states and 23715 transitions. [2022-11-16 11:35:24,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:35:24,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-16 11:35:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:24,329 INFO L225 Difference]: With dead ends: 16568 [2022-11-16 11:35:24,329 INFO L226 Difference]: Without dead ends: 11139 [2022-11-16 11:35:24,337 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 [2022-11-16 11:35:24,338 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 716 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:24,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 2330 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:35:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11139 states. [2022-11-16 11:35:25,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11139 to 11129. [2022-11-16 11:35:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11129 states, 11123 states have (on average 1.4129281668614582) internal successors, (15716), 11128 states have internal predecessors, (15716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:25,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11129 states to 11129 states and 15716 transitions. [2022-11-16 11:35:25,428 INFO L78 Accepts]: Start accepts. Automaton has 11129 states and 15716 transitions. Word has length 77 [2022-11-16 11:35:25,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:25,429 INFO L495 AbstractCegarLoop]: Abstraction has 11129 states and 15716 transitions. [2022-11-16 11:35:25,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:25,429 INFO L276 IsEmpty]: Start isEmpty. Operand 11129 states and 15716 transitions. [2022-11-16 11:35:25,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 11:35:25,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:25,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:25,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:35:25,440 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:25,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:25,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1793167006, now seen corresponding path program 1 times [2022-11-16 11:35:25,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:25,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262022924] [2022-11-16 11:35:25,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:25,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:25,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:25,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262022924] [2022-11-16 11:35:25,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262022924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:25,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:25,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:35:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34879820] [2022-11-16 11:35:25,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:25,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:35:25,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:25,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:35:25,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:35:25,617 INFO L87 Difference]: Start difference. First operand 11129 states and 15716 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:27,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:27,582 INFO L93 Difference]: Finished difference Result 24320 states and 34641 transitions. [2022-11-16 11:35:27,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:35:27,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-16 11:35:27,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:27,616 INFO L225 Difference]: With dead ends: 24320 [2022-11-16 11:35:27,616 INFO L226 Difference]: Without dead ends: 14157 [2022-11-16 11:35:27,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:35:27,629 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 3965 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3965 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:27,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3965 Valid, 861 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:35:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14157 states. [2022-11-16 11:35:29,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14157 to 14111. [2022-11-16 11:35:29,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14111 states, 14105 states have (on average 1.4162353775257002) internal successors, (19976), 14110 states have internal predecessors, (19976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14111 states to 14111 states and 19976 transitions. [2022-11-16 11:35:29,114 INFO L78 Accepts]: Start accepts. Automaton has 14111 states and 19976 transitions. Word has length 77 [2022-11-16 11:35:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:29,115 INFO L495 AbstractCegarLoop]: Abstraction has 14111 states and 19976 transitions. [2022-11-16 11:35:29,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 14111 states and 19976 transitions. [2022-11-16 11:35:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 11:35:29,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:29,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:29,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:35:29,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash 384616632, now seen corresponding path program 1 times [2022-11-16 11:35:29,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:29,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042426812] [2022-11-16 11:35:29,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:29,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:29,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:29,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:29,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042426812] [2022-11-16 11:35:29,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042426812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:29,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:29,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:35:29,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848716690] [2022-11-16 11:35:29,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:29,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:35:29,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:29,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:35:29,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:35:29,408 INFO L87 Difference]: Start difference. First operand 14111 states and 19976 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:35,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:35,464 INFO L93 Difference]: Finished difference Result 49980 states and 72255 transitions. [2022-11-16 11:35:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:35:35,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 11:35:35,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:35,578 INFO L225 Difference]: With dead ends: 49980 [2022-11-16 11:35:35,578 INFO L226 Difference]: Without dead ends: 45636 [2022-11-16 11:35:35,593 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 [2022-11-16 11:35:35,594 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 7618 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7618 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:35,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7618 Valid, 1774 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:35:35,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45636 states. [2022-11-16 11:35:37,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45636 to 14159. [2022-11-16 11:35:37,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14159 states, 14153 states have (on average 1.4159542146541368) internal successors, (20040), 14158 states have internal predecessors, (20040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:37,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14159 states to 14159 states and 20040 transitions. [2022-11-16 11:35:37,396 INFO L78 Accepts]: Start accepts. Automaton has 14159 states and 20040 transitions. Word has length 78 [2022-11-16 11:35:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:37,396 INFO L495 AbstractCegarLoop]: Abstraction has 14159 states and 20040 transitions. [2022-11-16 11:35:37,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 14159 states and 20040 transitions. [2022-11-16 11:35:37,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 11:35:37,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:37,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:37,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:35:37,409 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:37,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:37,410 INFO L85 PathProgramCache]: Analyzing trace with hash -448054908, now seen corresponding path program 1 times [2022-11-16 11:35:37,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:37,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392030232] [2022-11-16 11:35:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:37,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:37,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:37,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392030232] [2022-11-16 11:35:37,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392030232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:37,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:37,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:35:37,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563782151] [2022-11-16 11:35:37,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:37,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:35:37,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:37,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:35:37,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:35:37,599 INFO L87 Difference]: Start difference. First operand 14159 states and 20040 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:46,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:46,187 INFO L93 Difference]: Finished difference Result 58023 states and 84035 transitions. [2022-11-16 11:35:46,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:35:46,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 11:35:46,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:46,315 INFO L225 Difference]: With dead ends: 58023 [2022-11-16 11:35:46,315 INFO L226 Difference]: Without dead ends: 52403 [2022-11-16 11:35:46,331 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 [2022-11-16 11:35:46,332 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 7045 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7045 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:46,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7045 Valid, 1751 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:46,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52403 states. [2022-11-16 11:35:48,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52403 to 14339. [2022-11-16 11:35:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14339 states, 14333 states have (on average 1.4149166259680457) internal successors, (20280), 14338 states have internal predecessors, (20280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 20280 transitions. [2022-11-16 11:35:48,339 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 20280 transitions. Word has length 78 [2022-11-16 11:35:48,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:48,339 INFO L495 AbstractCegarLoop]: Abstraction has 14339 states and 20280 transitions. [2022-11-16 11:35:48,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:48,340 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 20280 transitions. [2022-11-16 11:35:48,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 11:35:48,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:48,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:48,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:35:48,354 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:35:48,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:48,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1302867127, now seen corresponding path program 1 times [2022-11-16 11:35:48,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:48,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129395536] [2022-11-16 11:35:48,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:48,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:48,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:48,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:48,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129395536] [2022-11-16 11:35:48,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129395536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:48,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:48,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:35:48,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701245947] [2022-11-16 11:35:48,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:48,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:35:48,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:48,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:35:48,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:35:48,600 INFO L87 Difference]: Start difference. First operand 14339 states and 20280 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:57,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:57,815 INFO L93 Difference]: Finished difference Result 52723 states and 76327 transitions. [2022-11-16 11:35:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:35:57,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 11:35:57,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:57,899 INFO L225 Difference]: With dead ends: 52723 [2022-11-16 11:35:57,899 INFO L226 Difference]: Without dead ends: 47389 [2022-11-16 11:35:57,919 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 [2022-11-16 11:35:57,920 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 6652 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6652 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:57,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6652 Valid, 1730 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:35:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47389 states. [2022-11-16 11:36:00,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47389 to 14639. [2022-11-16 11:36:00,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14639 states, 14633 states have (on average 1.413517392195722) internal successors, (20684), 14638 states have internal predecessors, (20684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14639 states to 14639 states and 20684 transitions. [2022-11-16 11:36:00,239 INFO L78 Accepts]: Start accepts. Automaton has 14639 states and 20684 transitions. Word has length 78 [2022-11-16 11:36:00,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:00,239 INFO L495 AbstractCegarLoop]: Abstraction has 14639 states and 20684 transitions. [2022-11-16 11:36:00,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:00,240 INFO L276 IsEmpty]: Start isEmpty. Operand 14639 states and 20684 transitions. [2022-11-16 11:36:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 11:36:00,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:00,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:00,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:36:00,253 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:36:00,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:00,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2082723386, now seen corresponding path program 1 times [2022-11-16 11:36:00,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:00,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477972419] [2022-11-16 11:36:00,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:00,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:00,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:00,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477972419] [2022-11-16 11:36:00,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477972419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:00,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:00,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:36:00,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382990238] [2022-11-16 11:36:00,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:00,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:36:00,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:00,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:36:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:36:00,622 INFO L87 Difference]: Start difference. First operand 14639 states and 20684 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:04,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:04,208 INFO L93 Difference]: Finished difference Result 21931 states and 31485 transitions. [2022-11-16 11:36:04,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:36:04,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-16 11:36:04,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:04,234 INFO L225 Difference]: With dead ends: 21931 [2022-11-16 11:36:04,234 INFO L226 Difference]: Without dead ends: 21929 [2022-11-16 11:36:04,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:36:04,241 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 150 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:04,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3825 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:36:04,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21929 states. [2022-11-16 11:36:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21929 to 14637. [2022-11-16 11:36:06,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14637 states, 14632 states have (on average 1.411085292509568) internal successors, (20647), 14636 states have internal predecessors, (20647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:06,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14637 states to 14637 states and 20647 transitions. [2022-11-16 11:36:06,331 INFO L78 Accepts]: Start accepts. Automaton has 14637 states and 20647 transitions. Word has length 79 [2022-11-16 11:36:06,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:06,331 INFO L495 AbstractCegarLoop]: Abstraction has 14637 states and 20647 transitions. [2022-11-16 11:36:06,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:06,332 INFO L276 IsEmpty]: Start isEmpty. Operand 14637 states and 20647 transitions. [2022-11-16 11:36:06,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 11:36:06,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:06,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:06,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:36:06,346 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:36:06,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:06,346 INFO L85 PathProgramCache]: Analyzing trace with hash -554526117, now seen corresponding path program 1 times [2022-11-16 11:36:06,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:06,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25735365] [2022-11-16 11:36:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:06,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:06,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:06,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25735365] [2022-11-16 11:36:06,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25735365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:06,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:06,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:36:06,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744959519] [2022-11-16 11:36:06,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:06,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:36:06,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:06,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:36:06,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:36:06,683 INFO L87 Difference]: Start difference. First operand 14637 states and 20647 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:10,357 INFO L93 Difference]: Finished difference Result 21929 states and 31448 transitions. [2022-11-16 11:36:10,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:36:10,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-16 11:36:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:10,389 INFO L225 Difference]: With dead ends: 21929 [2022-11-16 11:36:10,389 INFO L226 Difference]: Without dead ends: 21927 [2022-11-16 11:36:10,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:36:10,395 INFO L413 NwaCegarLoop]: 1324 mSDtfsCounter, 150 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3819 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:10,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3819 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:36:10,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21927 states. [2022-11-16 11:36:12,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21927 to 14635. [2022-11-16 11:36:12,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14635 states, 14631 states have (on average 1.4086528603649784) internal successors, (20610), 14634 states have internal predecessors, (20610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:12,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14635 states to 14635 states and 20610 transitions. [2022-11-16 11:36:12,523 INFO L78 Accepts]: Start accepts. Automaton has 14635 states and 20610 transitions. Word has length 79 [2022-11-16 11:36:12,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:12,523 INFO L495 AbstractCegarLoop]: Abstraction has 14635 states and 20610 transitions. [2022-11-16 11:36:12,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:12,524 INFO L276 IsEmpty]: Start isEmpty. Operand 14635 states and 20610 transitions. [2022-11-16 11:36:12,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 11:36:12,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:12,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:12,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:36:12,531 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:36:12,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:12,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2114012911, now seen corresponding path program 1 times [2022-11-16 11:36:12,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:12,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192719462] [2022-11-16 11:36:12,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:12,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:12,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:12,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192719462] [2022-11-16 11:36:12,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192719462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:12,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:12,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:36:12,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145180381] [2022-11-16 11:36:12,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:12,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:36:12,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:12,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:36:12,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:36:12,668 INFO L87 Difference]: Start difference. First operand 14635 states and 20610 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:17,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:17,033 INFO L93 Difference]: Finished difference Result 32708 states and 46104 transitions. [2022-11-16 11:36:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:36:17,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-16 11:36:17,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:17,055 INFO L225 Difference]: With dead ends: 32708 [2022-11-16 11:36:17,056 INFO L226 Difference]: Without dead ends: 18877 [2022-11-16 11:36:17,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:36:17,072 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3599 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3599 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:17,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3599 Valid, 770 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:36:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18877 states. [2022-11-16 11:36:20,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18877 to 18817. [2022-11-16 11:36:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18817 states, 18813 states have (on average 1.3977037155158667) internal successors, (26295), 18816 states have internal predecessors, (26295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:20,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18817 states to 18817 states and 26295 transitions. [2022-11-16 11:36:20,043 INFO L78 Accepts]: Start accepts. Automaton has 18817 states and 26295 transitions. Word has length 79 [2022-11-16 11:36:20,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:20,043 INFO L495 AbstractCegarLoop]: Abstraction has 18817 states and 26295 transitions. [2022-11-16 11:36:20,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:20,043 INFO L276 IsEmpty]: Start isEmpty. Operand 18817 states and 26295 transitions. [2022-11-16 11:36:20,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 11:36:20,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:20,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:20,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:36:20,057 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:36:20,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:20,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1892443340, now seen corresponding path program 1 times [2022-11-16 11:36:20,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:20,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65660190] [2022-11-16 11:36:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:20,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:20,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:20,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65660190] [2022-11-16 11:36:20,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65660190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:20,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:20,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:36:20,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085538179] [2022-11-16 11:36:20,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:20,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:36:20,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:20,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:36:20,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:36:20,201 INFO L87 Difference]: Start difference. First operand 18817 states and 26295 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:25,750 INFO L93 Difference]: Finished difference Result 43750 states and 61399 transitions. [2022-11-16 11:36:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:36:25,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-16 11:36:25,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:25,782 INFO L225 Difference]: With dead ends: 43750 [2022-11-16 11:36:25,782 INFO L226 Difference]: Without dead ends: 25804 [2022-11-16 11:36:25,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:36:25,794 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3975 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3975 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:25,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3975 Valid, 904 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:36:25,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25804 states. [2022-11-16 11:36:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25804 to 18817. [2022-11-16 11:36:28,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18817 states, 18813 states have (on average 1.3933450273746877) internal successors, (26213), 18816 states have internal predecessors, (26213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18817 states to 18817 states and 26213 transitions. [2022-11-16 11:36:28,983 INFO L78 Accepts]: Start accepts. Automaton has 18817 states and 26213 transitions. Word has length 79 [2022-11-16 11:36:28,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:28,983 INFO L495 AbstractCegarLoop]: Abstraction has 18817 states and 26213 transitions. [2022-11-16 11:36:28,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:28,984 INFO L276 IsEmpty]: Start isEmpty. Operand 18817 states and 26213 transitions. [2022-11-16 11:36:28,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 11:36:28,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:28,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:28,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:36:28,995 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:36:28,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:28,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1137442928, now seen corresponding path program 1 times [2022-11-16 11:36:28,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:28,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173931608] [2022-11-16 11:36:28,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:28,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:29,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:29,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173931608] [2022-11-16 11:36:29,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173931608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:29,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:29,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:36:29,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093901210] [2022-11-16 11:36:29,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:29,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:36:29,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:29,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:36:29,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:36:29,182 INFO L87 Difference]: Start difference. First operand 18817 states and 26213 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:44,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:44,580 INFO L93 Difference]: Finished difference Result 67289 states and 95635 transitions. [2022-11-16 11:36:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:36:44,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 11:36:44,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:44,664 INFO L225 Difference]: With dead ends: 67289 [2022-11-16 11:36:44,664 INFO L226 Difference]: Without dead ends: 59815 [2022-11-16 11:36:44,677 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 [2022-11-16 11:36:44,680 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 6065 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6065 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:44,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6065 Valid, 1695 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:36:44,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59815 states. [2022-11-16 11:36:48,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59815 to 19324. [2022-11-16 11:36:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19324 states, 19320 states have (on average 1.392287784679089) internal successors, (26899), 19323 states have internal predecessors, (26899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:48,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19324 states to 19324 states and 26899 transitions. [2022-11-16 11:36:48,906 INFO L78 Accepts]: Start accepts. Automaton has 19324 states and 26899 transitions. Word has length 80 [2022-11-16 11:36:48,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:48,906 INFO L495 AbstractCegarLoop]: Abstraction has 19324 states and 26899 transitions. [2022-11-16 11:36:48,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand 19324 states and 26899 transitions. [2022-11-16 11:36:48,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 11:36:48,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:48,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:48,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:36:48,914 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:36:48,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:48,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1407167192, now seen corresponding path program 1 times [2022-11-16 11:36:48,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:48,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687782299] [2022-11-16 11:36:48,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:48,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:49,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:49,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687782299] [2022-11-16 11:36:49,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687782299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:49,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:49,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:36:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416982262] [2022-11-16 11:36:49,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:49,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:36:49,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:49,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:36:49,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:36:49,103 INFO L87 Difference]: Start difference. First operand 19324 states and 26899 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:04,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:04,703 INFO L93 Difference]: Finished difference Result 65475 states and 92497 transitions. [2022-11-16 11:37:04,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:37:04,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 11:37:04,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:04,786 INFO L225 Difference]: With dead ends: 65475 [2022-11-16 11:37:04,786 INFO L226 Difference]: Without dead ends: 56333 [2022-11-16 11:37:04,801 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 [2022-11-16 11:37:04,802 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 6282 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6282 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:04,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6282 Valid, 1694 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:37:04,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56333 states. [2022-11-16 11:37:09,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56333 to 19408. [2022-11-16 11:37:09,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19408 states, 19404 states have (on average 1.3918264275407133) internal successors, (27007), 19407 states have internal predecessors, (27007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:09,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19408 states to 19408 states and 27007 transitions. [2022-11-16 11:37:09,419 INFO L78 Accepts]: Start accepts. Automaton has 19408 states and 27007 transitions. Word has length 80 [2022-11-16 11:37:09,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:09,420 INFO L495 AbstractCegarLoop]: Abstraction has 19408 states and 27007 transitions. [2022-11-16 11:37:09,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:09,420 INFO L276 IsEmpty]: Start isEmpty. Operand 19408 states and 27007 transitions. [2022-11-16 11:37:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 11:37:09,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:09,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:09,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:37:09,431 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:37:09,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1477869642, now seen corresponding path program 1 times [2022-11-16 11:37:09,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:09,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341872948] [2022-11-16 11:37:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:09,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:09,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:09,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:09,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341872948] [2022-11-16 11:37:09,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341872948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:09,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:09,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:37:09,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997621974] [2022-11-16 11:37:09,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:09,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:37:09,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:09,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:37:09,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:37:09,755 INFO L87 Difference]: Start difference. First operand 19408 states and 27007 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:17,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:17,331 INFO L93 Difference]: Finished difference Result 30264 states and 42857 transitions. [2022-11-16 11:37:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:37:17,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-16 11:37:17,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:17,368 INFO L225 Difference]: With dead ends: 30264 [2022-11-16 11:37:17,368 INFO L226 Difference]: Without dead ends: 30262 [2022-11-16 11:37:17,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:37:17,374 INFO L413 NwaCegarLoop]: 1269 mSDtfsCounter, 148 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:17,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3656 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:37:17,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30262 states. [2022-11-16 11:37:21,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30262 to 19406. [2022-11-16 11:37:21,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19406 states, 19403 states have (on average 1.3890635468741948) internal successors, (26952), 19405 states have internal predecessors, (26952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19406 states to 19406 states and 26952 transitions. [2022-11-16 11:37:21,843 INFO L78 Accepts]: Start accepts. Automaton has 19406 states and 26952 transitions. Word has length 81 [2022-11-16 11:37:21,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:21,844 INFO L495 AbstractCegarLoop]: Abstraction has 19406 states and 26952 transitions. [2022-11-16 11:37:21,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:21,844 INFO L276 IsEmpty]: Start isEmpty. Operand 19406 states and 26952 transitions. [2022-11-16 11:37:21,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 11:37:21,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:21,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:21,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:37:21,853 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:37:21,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:21,853 INFO L85 PathProgramCache]: Analyzing trace with hash -918459322, now seen corresponding path program 1 times [2022-11-16 11:37:21,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:21,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405903558] [2022-11-16 11:37:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:21,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:22,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:22,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405903558] [2022-11-16 11:37:22,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405903558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:22,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:22,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:37:22,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551792585] [2022-11-16 11:37:22,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:22,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:37:22,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:22,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:37:22,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:37:22,123 INFO L87 Difference]: Start difference. First operand 19406 states and 26952 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:29,866 INFO L93 Difference]: Finished difference Result 30262 states and 42802 transitions. [2022-11-16 11:37:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:37:29,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-16 11:37:29,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:29,903 INFO L225 Difference]: With dead ends: 30262 [2022-11-16 11:37:29,903 INFO L226 Difference]: Without dead ends: 30260 [2022-11-16 11:37:29,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:37:29,909 INFO L413 NwaCegarLoop]: 1267 mSDtfsCounter, 148 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:29,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3650 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:37:29,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30260 states. [2022-11-16 11:37:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30260 to 19404. [2022-11-16 11:37:34,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19404 states, 19402 states have (on average 1.386300381403979) internal successors, (26897), 19403 states have internal predecessors, (26897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19404 states to 19404 states and 26897 transitions. [2022-11-16 11:37:34,333 INFO L78 Accepts]: Start accepts. Automaton has 19404 states and 26897 transitions. Word has length 81 [2022-11-16 11:37:34,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:34,333 INFO L495 AbstractCegarLoop]: Abstraction has 19404 states and 26897 transitions. [2022-11-16 11:37:34,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:34,333 INFO L276 IsEmpty]: Start isEmpty. Operand 19404 states and 26897 transitions. [2022-11-16 11:37:34,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:37:34,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:34,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:34,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:37:34,344 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:37:34,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:34,344 INFO L85 PathProgramCache]: Analyzing trace with hash 433406996, now seen corresponding path program 1 times [2022-11-16 11:37:34,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:34,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686730692] [2022-11-16 11:37:34,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:34,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:34,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:34,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:34,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686730692] [2022-11-16 11:37:34,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686730692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:34,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:34,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:37:34,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790621369] [2022-11-16 11:37:34,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:34,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:37:34,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:34,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:37:34,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:37:34,841 INFO L87 Difference]: Start difference. First operand 19404 states and 26897 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:51,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:51,784 INFO L93 Difference]: Finished difference Result 57777 states and 82224 transitions. [2022-11-16 11:37:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:37:51,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-16 11:37:51,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:51,845 INFO L225 Difference]: With dead ends: 57777 [2022-11-16 11:37:51,845 INFO L226 Difference]: Without dead ends: 46921 [2022-11-16 11:37:51,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:37:51,856 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 5378 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5378 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:51,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5378 Valid, 3669 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:37:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46921 states. [2022-11-16 11:37:56,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46921 to 19404. [2022-11-16 11:37:56,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19404 states, 19402 states have (on average 1.3856818884651068) internal successors, (26885), 19403 states have internal predecessors, (26885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:56,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19404 states to 19404 states and 26885 transitions. [2022-11-16 11:37:56,900 INFO L78 Accepts]: Start accepts. Automaton has 19404 states and 26885 transitions. Word has length 83 [2022-11-16 11:37:56,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:56,901 INFO L495 AbstractCegarLoop]: Abstraction has 19404 states and 26885 transitions. [2022-11-16 11:37:56,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:56,901 INFO L276 IsEmpty]: Start isEmpty. Operand 19404 states and 26885 transitions. [2022-11-16 11:37:56,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 11:37:56,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:56,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:56,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:37:56,912 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:37:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:56,912 INFO L85 PathProgramCache]: Analyzing trace with hash -275985466, now seen corresponding path program 1 times [2022-11-16 11:37:56,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:56,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990899321] [2022-11-16 11:37:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:56,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:57,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:57,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990899321] [2022-11-16 11:37:57,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990899321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:57,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:57,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:37:57,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963875268] [2022-11-16 11:37:57,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:57,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:37:57,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:57,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:37:57,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:37:57,169 INFO L87 Difference]: Start difference. First operand 19404 states and 26885 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:06,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:06,081 INFO L93 Difference]: Finished difference Result 30260 states and 42735 transitions. [2022-11-16 11:38:06,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:38:06,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-16 11:38:06,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:06,118 INFO L225 Difference]: With dead ends: 30260 [2022-11-16 11:38:06,118 INFO L226 Difference]: Without dead ends: 30258 [2022-11-16 11:38:06,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:38:06,123 INFO L413 NwaCegarLoop]: 1264 mSDtfsCounter, 148 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:06,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3641 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:38:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30258 states. [2022-11-16 11:38:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30258 to 19402. [2022-11-16 11:38:11,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19402 states, 19401 states have (on average 1.3815267254265244) internal successors, (26803), 19401 states have internal predecessors, (26803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19402 states to 19402 states and 26803 transitions. [2022-11-16 11:38:11,298 INFO L78 Accepts]: Start accepts. Automaton has 19402 states and 26803 transitions. Word has length 83 [2022-11-16 11:38:11,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:11,299 INFO L495 AbstractCegarLoop]: Abstraction has 19402 states and 26803 transitions. [2022-11-16 11:38:11,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:11,299 INFO L276 IsEmpty]: Start isEmpty. Operand 19402 states and 26803 transitions. [2022-11-16 11:38:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 11:38:11,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:11,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:11,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:38:11,310 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:38:11,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:11,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1130030564, now seen corresponding path program 1 times [2022-11-16 11:38:11,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:11,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129799153] [2022-11-16 11:38:11,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:11,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:11,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:11,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:11,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129799153] [2022-11-16 11:38:11,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129799153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:11,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:11,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:38:11,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901808374] [2022-11-16 11:38:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:11,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:38:11,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:38:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:38:11,503 INFO L87 Difference]: Start difference. First operand 19402 states and 26803 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:34,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:34,463 INFO L93 Difference]: Finished difference Result 66920 states and 95019 transitions. [2022-11-16 11:38:34,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:38:34,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-16 11:38:34,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:34,551 INFO L225 Difference]: With dead ends: 66920 [2022-11-16 11:38:34,551 INFO L226 Difference]: Without dead ends: 59664 [2022-11-16 11:38:34,564 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 [2022-11-16 11:38:34,565 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 5101 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:34,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 1844 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:38:34,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59664 states. [2022-11-16 11:38:40,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59664 to 19492. [2022-11-16 11:38:40,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19492 states, 19491 states have (on average 1.3813041916782105) internal successors, (26923), 19491 states have internal predecessors, (26923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:40,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19492 states to 19492 states and 26923 transitions. [2022-11-16 11:38:40,075 INFO L78 Accepts]: Start accepts. Automaton has 19492 states and 26923 transitions. Word has length 84 [2022-11-16 11:38:40,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:40,076 INFO L495 AbstractCegarLoop]: Abstraction has 19492 states and 26923 transitions. [2022-11-16 11:38:40,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:40,076 INFO L276 IsEmpty]: Start isEmpty. Operand 19492 states and 26923 transitions. [2022-11-16 11:38:40,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 11:38:40,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:40,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:40,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:38:40,085 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 11:38:40,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:40,086 INFO L85 PathProgramCache]: Analyzing trace with hash -931305841, now seen corresponding path program 1 times [2022-11-16 11:38:40,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:40,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438635721] [2022-11-16 11:38:40,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:40,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:40,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:40,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438635721] [2022-11-16 11:38:40,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438635721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:40,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:40,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:38:40,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483383486] [2022-11-16 11:38:40,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:40,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:38:40,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:40,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:38:40,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:38:40,923 INFO L87 Difference]: Start difference. First operand 19492 states and 26923 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)