./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R --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 9674251da7d9ff9045cc98880d6752b693163f5c0467dc21f0f16b64a076bd08 --- 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-38b53e6 [2022-11-25 18:25:47,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:25:47,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:25:47,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:25:47,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:25:47,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:25:47,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:25:47,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:25:47,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:25:47,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:25:47,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:25:47,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:25:47,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:25:47,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:25:47,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:25:47,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:25:47,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:25:47,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:25:47,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:25:47,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:25:47,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:25:47,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:25:47,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:25:47,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:25:47,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:25:47,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:25:47,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:25:47,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:25:47,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:25:47,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:25:47,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:25:47,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:25:47,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:25:47,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:25:47,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:25:47,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:25:47,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:25:47,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:25:47,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:25:47,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:25:47,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:25:47,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:25:47,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:25:47,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:25:47,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:25:47,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:25:47,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:25:47,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:25:47,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:25:47,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:25:47,850 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:25:47,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:25:47,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:25:47,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:25:47,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:25:47,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:25:47,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:25:47,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:25:47,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:25:47,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:25:47,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:25:47,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:25:47,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:25:47,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:25:47,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:25:47,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:25:47,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:25:47,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:25:47,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:25:47,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:25:47,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:25:47,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:25:47,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:25:47,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:25:47,858 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:25:47,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:25:47,859 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9674251da7d9ff9045cc98880d6752b693163f5c0467dc21f0f16b64a076bd08 [2022-11-25 18:25:48,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:25:48,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:25:48,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:25:48,135 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:25:48,136 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:25:48,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-11-25 18:25:51,229 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:25:51,550 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:25:51,551 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-11-25 18:25:51,564 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/data/1bf255547/46f2cbe2e1a040ba8921dfde211b4eba/FLAGbb9378122 [2022-11-25 18:25:51,579 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/data/1bf255547/46f2cbe2e1a040ba8921dfde211b4eba [2022-11-25 18:25:51,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:25:51,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:25:51,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:25:51,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:25:51,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:25:51,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:51" (1/1) ... [2022-11-25 18:25:51,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0f068e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:51, skipping insertion in model container [2022-11-25 18:25:51,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:51" (1/1) ... [2022-11-25 18:25:51,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:25:51,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:25:52,046 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14166,14179] [2022-11-25 18:25:52,067 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15226,15239] [2022-11-25 18:25:52,175 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[26532,26545] [2022-11-25 18:25:52,186 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[27179,27192] [2022-11-25 18:25:52,202 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[28412,28425] [2022-11-25 18:25:52,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:25:52,257 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:25:52,391 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14166,14179] [2022-11-25 18:25:52,404 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15226,15239] [2022-11-25 18:25:52,497 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[26532,26545] [2022-11-25 18:25:52,506 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[27179,27192] [2022-11-25 18:25:52,543 WARN L237 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_b5758b99-8244-4c42-8304-2f231c41ad55/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[28412,28425] [2022-11-25 18:25:52,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:25:52,607 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:25:52,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52 WrapperNode [2022-11-25 18:25:52,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:25:52,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:25:52,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:25:52,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:25:52,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,720 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1558 [2022-11-25 18:25:52,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:25:52,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:25:52,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:25:52,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:25:52,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,826 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:25:52,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:25:52,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:25:52,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:25:52,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (1/1) ... [2022-11-25 18:25:52,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:25:52,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:25:52,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:25:52,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5758b99-8244-4c42-8304-2f231c41ad55/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:25:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:25:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:25:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:25:52,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:25:53,101 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:25:53,103 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:25:54,500 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:25:54,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:25:54,511 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:25:54,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:54 BoogieIcfgContainer [2022-11-25 18:25:54,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:25:54,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:25:54,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:25:54,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:25:54,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:25:51" (1/3) ... [2022-11-25 18:25:54,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5352df1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:54, skipping insertion in model container [2022-11-25 18:25:54,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:52" (2/3) ... [2022-11-25 18:25:54,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5352df1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:54, skipping insertion in model container [2022-11-25 18:25:54,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:54" (3/3) ... [2022-11-25 18:25:54,523 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-11-25 18:25:54,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:25:54,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-25 18:25:54,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:25:54,637 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;@1221d0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:25:54,637 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-25 18:25:54,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 371 states have (on average 1.8274932614555257) internal successors, (678), 376 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:54,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-25 18:25:54,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:54,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:54,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:25:54,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:54,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1203570768, now seen corresponding path program 1 times [2022-11-25 18:25:54,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:54,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136586700] [2022-11-25 18:25:54,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:54,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:55,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:55,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:55,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136586700] [2022-11-25 18:25:55,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136586700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:55,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:55,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:25:55,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189809635] [2022-11-25 18:25:55,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:55,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:25:55,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:55,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:25:55,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:25:55,935 INFO L87 Difference]: Start difference. First operand has 377 states, 371 states have (on average 1.8274932614555257) internal successors, (678), 376 states have internal predecessors, (678), 0 states have call successors, (0), 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 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:56,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:56,228 INFO L93 Difference]: Finished difference Result 1100 states and 1983 transitions. [2022-11-25 18:25:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:25:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2022-11-25 18:25:56,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:56,256 INFO L225 Difference]: With dead ends: 1100 [2022-11-25 18:25:56,256 INFO L226 Difference]: Without dead ends: 726 [2022-11-25 18:25:56,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:25:56,271 INFO L413 NwaCegarLoop]: 1178 mSDtfsCounter, 1376 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:56,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 1801 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:25:56,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-11-25 18:25:56,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 701. [2022-11-25 18:25:56,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 696 states have (on average 1.4425287356321839) internal successors, (1004), 700 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1004 transitions. [2022-11-25 18:25:56,428 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1004 transitions. Word has length 139 [2022-11-25 18:25:56,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:56,429 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1004 transitions. [2022-11-25 18:25:56,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:56,429 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1004 transitions. [2022-11-25 18:25:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-25 18:25:56,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:56,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:56,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:25:56,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:25:56,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:56,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1141139268, now seen corresponding path program 1 times [2022-11-25 18:25:56,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:56,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995986891] [2022-11-25 18:25:56,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:56,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:56,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:56,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:56,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995986891] [2022-11-25 18:25:56,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995986891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:56,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:56,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:25:56,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780304625] [2022-11-25 18:25:56,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:56,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:25:56,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:56,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:25:56,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:25:56,622 INFO L87 Difference]: Start difference. First operand 701 states and 1004 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:56,750 INFO L93 Difference]: Finished difference Result 2065 states and 2950 transitions. [2022-11-25 18:25:56,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:25:56,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2022-11-25 18:25:56,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:56,756 INFO L225 Difference]: With dead ends: 2065 [2022-11-25 18:25:56,756 INFO L226 Difference]: Without dead ends: 1392 [2022-11-25 18:25:56,759 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 [2022-11-25 18:25:56,761 INFO L413 NwaCegarLoop]: 1060 mSDtfsCounter, 526 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:56,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1588 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:25:56,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-11-25 18:25:56,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 703. [2022-11-25 18:25:56,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 698 states have (on average 1.4412607449856734) internal successors, (1006), 702 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1006 transitions. [2022-11-25 18:25:56,856 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1006 transitions. Word has length 140 [2022-11-25 18:25:56,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:56,858 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 1006 transitions. [2022-11-25 18:25:56,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:56,859 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1006 transitions. [2022-11-25 18:25:56,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-25 18:25:56,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:56,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:56,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:25:56,873 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:25:56,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:56,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1084924930, now seen corresponding path program 1 times [2022-11-25 18:25:56,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:56,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279960175] [2022-11-25 18:25:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:56,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:57,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279960175] [2022-11-25 18:25:57,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279960175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:57,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:57,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:25:57,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473100099] [2022-11-25 18:25:57,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:57,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:25:57,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:57,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:25:57,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:25:57,036 INFO L87 Difference]: Start difference. First operand 703 states and 1006 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:57,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:57,227 INFO L93 Difference]: Finished difference Result 1889 states and 2711 transitions. [2022-11-25 18:25:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:25:57,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2022-11-25 18:25:57,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:57,233 INFO L225 Difference]: With dead ends: 1889 [2022-11-25 18:25:57,233 INFO L226 Difference]: Without dead ends: 1364 [2022-11-25 18:25:57,235 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 [2022-11-25 18:25:57,238 INFO L413 NwaCegarLoop]: 985 mSDtfsCounter, 463 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:57,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1478 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:25:57,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2022-11-25 18:25:57,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1339. [2022-11-25 18:25:57,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1334 states have (on average 1.4295352323838082) internal successors, (1907), 1338 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1907 transitions. [2022-11-25 18:25:57,385 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1907 transitions. Word has length 141 [2022-11-25 18:25:57,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:57,385 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1907 transitions. [2022-11-25 18:25:57,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:57,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1907 transitions. [2022-11-25 18:25:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-25 18:25:57,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:57,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:57,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:25:57,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:25:57,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:57,393 INFO L85 PathProgramCache]: Analyzing trace with hash -980453119, now seen corresponding path program 1 times [2022-11-25 18:25:57,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:57,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762379618] [2022-11-25 18:25:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:57,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:57,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:57,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:57,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762379618] [2022-11-25 18:25:57,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762379618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:57,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:57,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:25:57,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686224524] [2022-11-25 18:25:57,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:57,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:25:57,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:57,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:25:57,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:25:57,892 INFO L87 Difference]: Start difference. First operand 1339 states and 1907 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:58,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:58,297 INFO L93 Difference]: Finished difference Result 3750 states and 5334 transitions. [2022-11-25 18:25:58,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:25:58,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2022-11-25 18:25:58,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:58,310 INFO L225 Difference]: With dead ends: 3750 [2022-11-25 18:25:58,310 INFO L226 Difference]: Without dead ends: 2425 [2022-11-25 18:25:58,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:25:58,319 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 1569 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:58,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 1399 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:25:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-11-25 18:25:58,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2403. [2022-11-25 18:25:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2398 states have (on average 1.4132610508757297) internal successors, (3389), 2402 states have internal predecessors, (3389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:58,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 3389 transitions. [2022-11-25 18:25:58,591 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 3389 transitions. Word has length 141 [2022-11-25 18:25:58,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:58,592 INFO L495 AbstractCegarLoop]: Abstraction has 2403 states and 3389 transitions. [2022-11-25 18:25:58,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:58,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 3389 transitions. [2022-11-25 18:25:58,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-25 18:25:58,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:58,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:58,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:25:58,599 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:25:58,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:58,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1926899985, now seen corresponding path program 1 times [2022-11-25 18:25:58,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:58,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312980676] [2022-11-25 18:25:58,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:58,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:59,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:59,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312980676] [2022-11-25 18:25:59,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312980676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:59,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:59,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:25:59,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646255436] [2022-11-25 18:25:59,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:59,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:25:59,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:59,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:25:59,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:25:59,029 INFO L87 Difference]: Start difference. First operand 2403 states and 3389 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:59,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:59,679 INFO L93 Difference]: Finished difference Result 7000 states and 9834 transitions. [2022-11-25 18:25:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:25:59,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2022-11-25 18:25:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:59,696 INFO L225 Difference]: With dead ends: 7000 [2022-11-25 18:25:59,697 INFO L226 Difference]: Without dead ends: 4653 [2022-11-25 18:25:59,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:25:59,706 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 1057 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:59,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1417 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:25:59,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2022-11-25 18:26:00,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 4626. [2022-11-25 18:26:00,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4626 states, 4621 states have (on average 1.396018177883575) internal successors, (6451), 4625 states have internal predecessors, (6451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4626 states to 4626 states and 6451 transitions. [2022-11-25 18:26:00,399 INFO L78 Accepts]: Start accepts. Automaton has 4626 states and 6451 transitions. Word has length 141 [2022-11-25 18:26:00,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:00,400 INFO L495 AbstractCegarLoop]: Abstraction has 4626 states and 6451 transitions. [2022-11-25 18:26:00,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:00,400 INFO L276 IsEmpty]: Start isEmpty. Operand 4626 states and 6451 transitions. [2022-11-25 18:26:00,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-25 18:26:00,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:00,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:00,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:26:00,408 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:26:00,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:00,409 INFO L85 PathProgramCache]: Analyzing trace with hash 349588475, now seen corresponding path program 1 times [2022-11-25 18:26:00,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:00,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024842618] [2022-11-25 18:26:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:00,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:00,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:00,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024842618] [2022-11-25 18:26:00,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024842618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:00,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:00,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:26:00,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628819019] [2022-11-25 18:26:00,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:00,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:26:00,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:00,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:26:00,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:26:00,506 INFO L87 Difference]: Start difference. First operand 4626 states and 6451 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:01,694 INFO L93 Difference]: Finished difference Result 13726 states and 19120 transitions. [2022-11-25 18:26:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:26:01,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2022-11-25 18:26:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:01,729 INFO L225 Difference]: With dead ends: 13726 [2022-11-25 18:26:01,729 INFO L226 Difference]: Without dead ends: 9191 [2022-11-25 18:26:01,736 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 [2022-11-25 18:26:01,737 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 512 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:01,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1137 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:26:01,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9191 states. [2022-11-25 18:26:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9191 to 4636. [2022-11-25 18:26:02,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4636 states, 4631 states have (on average 1.3951630317426043) internal successors, (6461), 4635 states have internal predecessors, (6461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4636 states to 4636 states and 6461 transitions. [2022-11-25 18:26:02,523 INFO L78 Accepts]: Start accepts. Automaton has 4636 states and 6461 transitions. Word has length 142 [2022-11-25 18:26:02,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:02,523 INFO L495 AbstractCegarLoop]: Abstraction has 4636 states and 6461 transitions. [2022-11-25 18:26:02,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:02,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4636 states and 6461 transitions. [2022-11-25 18:26:02,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-25 18:26:02,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:02,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:02,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:26:02,532 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:26:02,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash -88637170, now seen corresponding path program 1 times [2022-11-25 18:26:02,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:02,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808416525] [2022-11-25 18:26:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:02,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:02,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:02,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808416525] [2022-11-25 18:26:02,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808416525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:02,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:02,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:26:02,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836196363] [2022-11-25 18:26:02,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:02,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:26:02,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:02,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:26:02,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:26:02,909 INFO L87 Difference]: Start difference. First operand 4636 states and 6461 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:04,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:04,477 INFO L93 Difference]: Finished difference Result 13426 states and 18670 transitions. [2022-11-25 18:26:04,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:26:04,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-11-25 18:26:04,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:04,530 INFO L225 Difference]: With dead ends: 13426 [2022-11-25 18:26:04,530 INFO L226 Difference]: Without dead ends: 8891 [2022-11-25 18:26:04,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:26:04,539 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 1051 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:04,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1406 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:26:04,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8891 states. [2022-11-25 18:26:05,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8891 to 8864. [2022-11-25 18:26:05,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8864 states, 8859 states have (on average 1.379275313240772) internal successors, (12219), 8863 states have internal predecessors, (12219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:05,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8864 states to 8864 states and 12219 transitions. [2022-11-25 18:26:05,905 INFO L78 Accepts]: Start accepts. Automaton has 8864 states and 12219 transitions. Word has length 143 [2022-11-25 18:26:05,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:05,905 INFO L495 AbstractCegarLoop]: Abstraction has 8864 states and 12219 transitions. [2022-11-25 18:26:05,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:05,906 INFO L276 IsEmpty]: Start isEmpty. Operand 8864 states and 12219 transitions. [2022-11-25 18:26:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-25 18:26:05,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:05,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:05,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:26:05,920 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:26:05,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:05,920 INFO L85 PathProgramCache]: Analyzing trace with hash -845151558, now seen corresponding path program 1 times [2022-11-25 18:26:05,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:05,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812314551] [2022-11-25 18:26:05,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:05,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:06,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:06,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:06,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812314551] [2022-11-25 18:26:06,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812314551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:06,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:06,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:26:06,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003192872] [2022-11-25 18:26:06,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:06,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:26:06,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:06,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:26:06,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:26:06,008 INFO L87 Difference]: Start difference. First operand 8864 states and 12219 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:07,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:07,856 INFO L93 Difference]: Finished difference Result 25440 states and 35201 transitions. [2022-11-25 18:26:07,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:26:07,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2022-11-25 18:26:07,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:07,897 INFO L225 Difference]: With dead ends: 25440 [2022-11-25 18:26:07,897 INFO L226 Difference]: Without dead ends: 17451 [2022-11-25 18:26:07,909 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 [2022-11-25 18:26:07,910 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 498 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:07,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1143 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:26:07,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17451 states. [2022-11-25 18:26:09,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17451 to 8884. [2022-11-25 18:26:09,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8884 states, 8879 states have (on average 1.3784209933551075) internal successors, (12239), 8883 states have internal predecessors, (12239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:09,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8884 states to 8884 states and 12239 transitions. [2022-11-25 18:26:09,207 INFO L78 Accepts]: Start accepts. Automaton has 8884 states and 12239 transitions. Word has length 144 [2022-11-25 18:26:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:09,207 INFO L495 AbstractCegarLoop]: Abstraction has 8884 states and 12239 transitions. [2022-11-25 18:26:09,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:09,209 INFO L276 IsEmpty]: Start isEmpty. Operand 8884 states and 12239 transitions. [2022-11-25 18:26:09,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 18:26:09,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:09,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:09,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:26:09,220 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:26:09,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:09,221 INFO L85 PathProgramCache]: Analyzing trace with hash -319371603, now seen corresponding path program 1 times [2022-11-25 18:26:09,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:09,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626116105] [2022-11-25 18:26:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:09,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:09,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:09,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626116105] [2022-11-25 18:26:09,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626116105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:09,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:09,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:26:09,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217044726] [2022-11-25 18:26:09,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:09,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:26:09,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:09,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:26:09,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:26:09,565 INFO L87 Difference]: Start difference. First operand 8884 states and 12239 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:10,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:10,199 INFO L93 Difference]: Finished difference Result 14105 states and 19475 transitions. [2022-11-25 18:26:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:26:10,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-11-25 18:26:10,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:10,211 INFO L225 Difference]: With dead ends: 14105 [2022-11-25 18:26:10,211 INFO L226 Difference]: Without dead ends: 5741 [2022-11-25 18:26:10,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:26:10,222 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 65 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:10,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1642 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:26:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5741 states. [2022-11-25 18:26:10,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5741 to 5741. [2022-11-25 18:26:10,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5741 states, 5736 states have (on average 1.3718619246861925) internal successors, (7869), 5740 states have internal predecessors, (7869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5741 states to 5741 states and 7869 transitions. [2022-11-25 18:26:10,983 INFO L78 Accepts]: Start accepts. Automaton has 5741 states and 7869 transitions. Word has length 145 [2022-11-25 18:26:10,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:10,983 INFO L495 AbstractCegarLoop]: Abstraction has 5741 states and 7869 transitions. [2022-11-25 18:26:10,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:10,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5741 states and 7869 transitions. [2022-11-25 18:26:10,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-25 18:26:10,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:10,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:10,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:26:10,996 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:26:10,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:10,997 INFO L85 PathProgramCache]: Analyzing trace with hash -14967049, now seen corresponding path program 1 times [2022-11-25 18:26:10,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:10,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558174290] [2022-11-25 18:26:10,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:10,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:11,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:11,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558174290] [2022-11-25 18:26:11,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558174290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:11,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:11,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:26:11,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676598155] [2022-11-25 18:26:11,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:11,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:26:11,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:11,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:26:11,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:26:11,099 INFO L87 Difference]: Start difference. First operand 5741 states and 7869 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:12,623 INFO L93 Difference]: Finished difference Result 15336 states and 21177 transitions. [2022-11-25 18:26:12,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:26:12,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-11-25 18:26:12,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:12,645 INFO L225 Difference]: With dead ends: 15336 [2022-11-25 18:26:12,645 INFO L226 Difference]: Without dead ends: 10681 [2022-11-25 18:26:12,654 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 [2022-11-25 18:26:12,654 INFO L413 NwaCegarLoop]: 1004 mSDtfsCounter, 449 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:12,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1486 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:26:12,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2022-11-25 18:26:13,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 10661. [2022-11-25 18:26:13,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10661 states, 10656 states have (on average 1.3578265765765767) internal successors, (14469), 10660 states have internal predecessors, (14469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:13,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10661 states to 10661 states and 14469 transitions. [2022-11-25 18:26:13,866 INFO L78 Accepts]: Start accepts. Automaton has 10661 states and 14469 transitions. Word has length 153 [2022-11-25 18:26:13,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:13,866 INFO L495 AbstractCegarLoop]: Abstraction has 10661 states and 14469 transitions. [2022-11-25 18:26:13,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:13,866 INFO L276 IsEmpty]: Start isEmpty. Operand 10661 states and 14469 transitions. [2022-11-25 18:26:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-25 18:26:13,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:13,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:13,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:26:13,880 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:26:13,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:13,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1413245894, now seen corresponding path program 1 times [2022-11-25 18:26:13,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:13,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568913117] [2022-11-25 18:26:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:13,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:13,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:13,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568913117] [2022-11-25 18:26:13,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568913117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:13,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:13,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:26:13,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369142031] [2022-11-25 18:26:13,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:13,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:26:13,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:13,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:26:13,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:26:13,981 INFO L87 Difference]: Start difference. First operand 10661 states and 14469 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:16,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:16,467 INFO L93 Difference]: Finished difference Result 28545 states and 39231 transitions. [2022-11-25 18:26:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:26:16,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-11-25 18:26:16,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:16,514 INFO L225 Difference]: With dead ends: 28545 [2022-11-25 18:26:16,515 INFO L226 Difference]: Without dead ends: 20276 [2022-11-25 18:26:16,527 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 [2022-11-25 18:26:16,528 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 392 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:16,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 827 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:26:16,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20276 states. [2022-11-25 18:26:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20276 to 20243. [2022-11-25 18:26:18,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20243 states, 20238 states have (on average 1.3573969759857694) internal successors, (27471), 20242 states have internal predecessors, (27471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:18,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20243 states to 20243 states and 27471 transitions. [2022-11-25 18:26:18,940 INFO L78 Accepts]: Start accepts. Automaton has 20243 states and 27471 transitions. Word has length 153 [2022-11-25 18:26:18,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:18,941 INFO L495 AbstractCegarLoop]: Abstraction has 20243 states and 27471 transitions. [2022-11-25 18:26:18,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:18,942 INFO L276 IsEmpty]: Start isEmpty. Operand 20243 states and 27471 transitions. [2022-11-25 18:26:18,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-25 18:26:18,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:18,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:18,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:26:18,970 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:26:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash 424086943, now seen corresponding path program 1 times [2022-11-25 18:26:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:18,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027759830] [2022-11-25 18:26:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:18,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:19,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:19,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:19,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027759830] [2022-11-25 18:26:19,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027759830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:19,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:19,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:26:19,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091666111] [2022-11-25 18:26:19,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:19,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:26:19,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:19,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:26:19,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:26:19,425 INFO L87 Difference]: Start difference. First operand 20243 states and 27471 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:22,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:22,613 INFO L93 Difference]: Finished difference Result 38202 states and 53840 transitions. [2022-11-25 18:26:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:26:22,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-11-25 18:26:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:22,678 INFO L225 Difference]: With dead ends: 38202 [2022-11-25 18:26:22,678 INFO L226 Difference]: Without dead ends: 31621 [2022-11-25 18:26:22,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:26:22,691 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 614 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:22,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 971 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:26:22,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31621 states. [2022-11-25 18:26:26,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31621 to 31619. [2022-11-25 18:26:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31619 states, 31614 states have (on average 1.3705004112102233) internal successors, (43327), 31618 states have internal predecessors, (43327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:26,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31619 states to 31619 states and 43327 transitions. [2022-11-25 18:26:26,822 INFO L78 Accepts]: Start accepts. Automaton has 31619 states and 43327 transitions. Word has length 153 [2022-11-25 18:26:26,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:26,823 INFO L495 AbstractCegarLoop]: Abstraction has 31619 states and 43327 transitions. [2022-11-25 18:26:26,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 31619 states and 43327 transitions. [2022-11-25 18:26:26,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-25 18:26:26,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:26,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:26,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 18:26:26,868 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:26:26,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:26,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1804095396, now seen corresponding path program 1 times [2022-11-25 18:26:26,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:26,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765522643] [2022-11-25 18:26:26,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:26,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:27,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:27,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765522643] [2022-11-25 18:26:27,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765522643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:27,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:27,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:26:27,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727373063] [2022-11-25 18:26:27,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:27,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:26:27,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:27,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:26:27,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:26:27,022 INFO L87 Difference]: Start difference. First operand 31619 states and 43327 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:31,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:31,978 INFO L93 Difference]: Finished difference Result 58386 states and 83248 transitions. [2022-11-25 18:26:31,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:26:31,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-11-25 18:26:31,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:32,069 INFO L225 Difference]: With dead ends: 58386 [2022-11-25 18:26:32,070 INFO L226 Difference]: Without dead ends: 45677 [2022-11-25 18:26:32,095 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 [2022-11-25 18:26:32,097 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 306 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:32,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 839 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:26:32,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45677 states. [2022-11-25 18:26:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45677 to 45675. [2022-11-25 18:26:37,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45675 states, 45670 states have (on average 1.38119115393037) internal successors, (63079), 45674 states have internal predecessors, (63079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:38,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45675 states to 45675 states and 63079 transitions. [2022-11-25 18:26:38,346 INFO L78 Accepts]: Start accepts. Automaton has 45675 states and 63079 transitions. Word has length 153 [2022-11-25 18:26:38,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:26:38,346 INFO L495 AbstractCegarLoop]: Abstraction has 45675 states and 63079 transitions. [2022-11-25 18:26:38,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 45675 states and 63079 transitions. [2022-11-25 18:26:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-25 18:26:38,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:26:38,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:26:38,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 18:26:38,373 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 18:26:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:26:38,373 INFO L85 PathProgramCache]: Analyzing trace with hash -345875771, now seen corresponding path program 1 times [2022-11-25 18:26:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:26:38,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254828397] [2022-11-25 18:26:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:26:38,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:26:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:26:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:26:38,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:26:38,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254828397] [2022-11-25 18:26:38,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254828397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:26:38,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:26:38,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:26:38,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622142178] [2022-11-25 18:26:38,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:26:38,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:26:38,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:26:38,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:26:38,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:26:38,691 INFO L87 Difference]: Start difference. First operand 45675 states and 63079 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:26:44,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:26:44,683 INFO L93 Difference]: Finished difference Result 72831 states and 100555 transitions. [2022-11-25 18:26:44,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:26:44,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-11-25 18:26:44,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:26:44,746 INFO L225 Difference]: With dead ends: 72831 [2022-11-25 18:26:44,746 INFO L226 Difference]: Without dead ends: 37198 [2022-11-25 18:26:44,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:26:44,773 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 53 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:26:44,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1631 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:26:44,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37198 states. [2022-11-25 18:26:50,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37198 to 37198.