./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec3_product27.cil.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_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/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_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec3_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/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_ee57f92a-139b-4899-b016-50c75911e4d7/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 4f7f32f81229c7756ac3848f16abf37868e5b5283c2f5648c26317015a8240dd --- 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 15:34:57,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:34:57,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:34:57,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:34:57,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:34:57,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:34:57,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:34:57,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:34:57,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:34:57,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:34:57,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:34:57,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:34:57,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:34:57,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:34:57,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:34:57,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:34:57,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:34:57,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:34:57,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:34:57,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:34:57,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:34:57,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:34:57,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:34:57,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:34:57,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:34:57,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:34:57,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:34:57,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:34:57,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:34:57,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:34:57,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:34:57,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:34:57,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:34:57,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:34:57,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:34:57,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:34:57,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:34:57,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:34:57,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:34:57,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:34:57,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:34:57,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:34:57,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:34:57,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:34:57,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:34:57,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:34:57,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:34:57,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:34:57,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:34:57,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:34:57,882 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:34:57,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:34:57,884 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:34:57,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:34:57,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:34:57,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:34:57,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:34:57,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:34:57,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:34:57,886 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:34:57,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:34:57,886 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:34:57,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:34:57,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:34:57,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:34:57,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:34:57,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:57,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:34:57,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:34:57,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:34:57,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:34:57,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:34:57,890 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:34:57,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:34:57,891 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:34:57,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:34:57,892 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_ee57f92a-139b-4899-b016-50c75911e4d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f7f32f81229c7756ac3848f16abf37868e5b5283c2f5648c26317015a8240dd [2022-11-25 15:34:58,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:34:58,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:34:58,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:34:58,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:34:58,300 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:34:58,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/elevator_spec3_product27.cil.c [2022-11-25 15:35:01,545 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:35:02,023 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:35:02,028 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/sv-benchmarks/c/product-lines/elevator_spec3_product27.cil.c [2022-11-25 15:35:02,057 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/data/ad9eace48/cb34314a63734cfba674cd17a7c10457/FLAG5b6b44226 [2022-11-25 15:35:02,072 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/data/ad9eace48/cb34314a63734cfba674cd17a7c10457 [2022-11-25 15:35:02,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:35:02,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:35:02,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:35:02,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:35:02,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:35:02,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:02,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fe112a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02, skipping insertion in model container [2022-11-25 15:35:02,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:02,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:35:02,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:35:02,781 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_ee57f92a-139b-4899-b016-50c75911e4d7/sv-benchmarks/c/product-lines/elevator_spec3_product27.cil.c[73003,73016] [2022-11-25 15:35:02,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:35:02,813 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:35:02,961 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_ee57f92a-139b-4899-b016-50c75911e4d7/sv-benchmarks/c/product-lines/elevator_spec3_product27.cil.c[73003,73016] [2022-11-25 15:35:02,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:35:02,992 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:35:02,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02 WrapperNode [2022-11-25 15:35:02,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:35:02,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:35:02,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:35:02,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:35:03,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,111 INFO L138 Inliner]: procedures = 93, calls = 348, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1135 [2022-11-25 15:35:03,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:35:03,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:35:03,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:35:03,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:35:03,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:35:03,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:35:03,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:35:03,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:35:03,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (1/1) ... [2022-11-25 15:35:03,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:35:03,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:35:03,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:35:03,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:35:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:35:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2022-11-25 15:35:03,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2022-11-25 15:35:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-11-25 15:35:03,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-11-25 15:35:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-11-25 15:35:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-11-25 15:35:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-11-25 15:35:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-11-25 15:35:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-11-25 15:35:03,360 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-11-25 15:35:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-11-25 15:35:03,360 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-11-25 15:35:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-11-25 15:35:03,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-11-25 15:35:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-25 15:35:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-25 15:35:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-25 15:35:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-25 15:35:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-11-25 15:35:03,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-11-25 15:35:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-11-25 15:35:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-11-25 15:35:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-11-25 15:35:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-11-25 15:35:03,362 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-11-25 15:35:03,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-11-25 15:35:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-11-25 15:35:03,363 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-11-25 15:35:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2022-11-25 15:35:03,364 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2022-11-25 15:35:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-11-25 15:35:03,365 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-11-25 15:35:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-11-25 15:35:03,366 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-11-25 15:35:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-11-25 15:35:03,366 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-11-25 15:35:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2022-11-25 15:35:03,367 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2022-11-25 15:35:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-11-25 15:35:03,368 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-11-25 15:35:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-11-25 15:35:03,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-11-25 15:35:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-11-25 15:35:03,368 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-11-25 15:35:03,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:35:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-11-25 15:35:03,369 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-11-25 15:35:03,369 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-11-25 15:35:03,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-11-25 15:35:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-11-25 15:35:03,370 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-11-25 15:35:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-11-25 15:35:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-11-25 15:35:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:35:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:35:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-11-25 15:35:03,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-11-25 15:35:03,634 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:35:03,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:35:05,312 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:35:05,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:35:05,343 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:35:05,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:35:05 BoogieIcfgContainer [2022-11-25 15:35:05,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:35:05,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:35:05,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:35:05,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:35:05,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:35:02" (1/3) ... [2022-11-25 15:35:05,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2247b6e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:35:05, skipping insertion in model container [2022-11-25 15:35:05,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:02" (2/3) ... [2022-11-25 15:35:05,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2247b6e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:35:05, skipping insertion in model container [2022-11-25 15:35:05,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:35:05" (3/3) ... [2022-11-25 15:35:05,367 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product27.cil.c [2022-11-25 15:35:05,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:35:05,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:35:05,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:35:05,494 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;@2b92ce08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:35:05,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:35:05,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 598 states, 461 states have (on average 1.6702819956616053) internal successors, (770), 479 states have internal predecessors, (770), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2022-11-25 15:35:05,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 15:35:05,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:05,539 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:35:05,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:05,547 INFO L85 PathProgramCache]: Analyzing trace with hash -363175274, now seen corresponding path program 1 times [2022-11-25 15:35:05,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:05,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859152920] [2022-11-25 15:35:05,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:05,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:35:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:06,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:35:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:35:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 15:35:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 15:35:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 15:35:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 15:35:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:35:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:35:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:35:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:35:07,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:07,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859152920] [2022-11-25 15:35:07,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859152920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:07,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:07,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:35:07,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474260574] [2022-11-25 15:35:07,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:07,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:35:07,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:07,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:35:07,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:35:07,378 INFO L87 Difference]: Start difference. First operand has 598 states, 461 states have (on average 1.6702819956616053) internal successors, (770), 479 states have internal predecessors, (770), 108 states have call successors, (108), 27 states have call predecessors, (108), 27 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:35:19,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:19,536 INFO L93 Difference]: Finished difference Result 1556 states and 2676 transitions. [2022-11-25 15:35:19,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:35:19,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2022-11-25 15:35:19,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:19,584 INFO L225 Difference]: With dead ends: 1556 [2022-11-25 15:35:19,584 INFO L226 Difference]: Without dead ends: 958 [2022-11-25 15:35:19,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-25 15:35:19,606 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1238 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 6275 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 6611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 6275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:19,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 3335 Invalid, 6611 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [336 Valid, 6275 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-11-25 15:35:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2022-11-25 15:35:19,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 601. [2022-11-25 15:35:19,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 464 states have (on average 1.6616379310344827) internal successors, (771), 482 states have internal predecessors, (771), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 104 states have call predecessors, (108), 106 states have call successors, (108) [2022-11-25 15:35:19,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 988 transitions. [2022-11-25 15:35:19,993 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 988 transitions. Word has length 113 [2022-11-25 15:35:19,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:19,994 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 988 transitions. [2022-11-25 15:35:19,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:35:19,995 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 988 transitions. [2022-11-25 15:35:20,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 15:35:20,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:20,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:35:20,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:35:20,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:20,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:20,009 INFO L85 PathProgramCache]: Analyzing trace with hash 356217210, now seen corresponding path program 1 times [2022-11-25 15:35:20,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:20,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971926609] [2022-11-25 15:35:20,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:35:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:35:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:35:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:35:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 15:35:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:35:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:35:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 15:35:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 15:35:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 15:35:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:35:20,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:20,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971926609] [2022-11-25 15:35:20,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971926609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:20,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:20,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:20,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230115182] [2022-11-25 15:35:20,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:20,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:20,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:20,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:20,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:20,902 INFO L87 Difference]: Start difference. First operand 601 states and 988 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:35:29,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:29,983 INFO L93 Difference]: Finished difference Result 1542 states and 2616 transitions. [2022-11-25 15:35:29,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:35:29,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-11-25 15:35:29,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:30,017 INFO L225 Difference]: With dead ends: 1542 [2022-11-25 15:35:30,017 INFO L226 Difference]: Without dead ends: 957 [2022-11-25 15:35:30,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:35:30,022 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 2306 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 3173 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 3960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 3173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:30,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 1595 Invalid, 3960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [787 Valid, 3173 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-25 15:35:30,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2022-11-25 15:35:30,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 601. [2022-11-25 15:35:30,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 464 states have (on average 1.6594827586206897) internal successors, (770), 482 states have internal predecessors, (770), 109 states have call successors, (109), 27 states have call predecessors, (109), 27 states have return successors, (108), 104 states have call predecessors, (108), 106 states have call successors, (108) [2022-11-25 15:35:30,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 987 transitions. [2022-11-25 15:35:30,204 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 987 transitions. Word has length 114 [2022-11-25 15:35:30,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:30,205 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 987 transitions. [2022-11-25 15:35:30,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:35:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 987 transitions. [2022-11-25 15:35:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 15:35:30,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:30,218 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:35:30,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:35:30,219 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:30,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:30,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1403689930, now seen corresponding path program 1 times [2022-11-25 15:35:30,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:30,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831589028] [2022-11-25 15:35:30,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:30,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:35:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:35:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:35:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 15:35:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 15:35:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:35:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:35:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 15:35:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 15:35:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 15:35:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:30,827 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:35:30,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:30,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831589028] [2022-11-25 15:35:30,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831589028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:30,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:30,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:30,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474584159] [2022-11-25 15:35:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:30,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:30,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:30,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:30,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:30,831 INFO L87 Difference]: Start difference. First operand 601 states and 987 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:35:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:39,984 INFO L93 Difference]: Finished difference Result 1537 states and 2602 transitions. [2022-11-25 15:35:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:35:39,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-11-25 15:35:39,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:39,993 INFO L225 Difference]: With dead ends: 1537 [2022-11-25 15:35:39,993 INFO L226 Difference]: Without dead ends: 921 [2022-11-25 15:35:39,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:35:40,000 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 1107 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 3446 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 3777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 3446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:40,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 1774 Invalid, 3777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [331 Valid, 3446 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-25 15:35:40,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-11-25 15:35:40,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 577. [2022-11-25 15:35:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 443 states have (on average 1.6501128668171559) internal successors, (731), 459 states have internal predecessors, (731), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:35:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 944 transitions. [2022-11-25 15:35:40,227 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 944 transitions. Word has length 114 [2022-11-25 15:35:40,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:40,227 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 944 transitions. [2022-11-25 15:35:40,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:35:40,228 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 944 transitions. [2022-11-25 15:35:40,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-25 15:35:40,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:40,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:35:40,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:35:40,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:40,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:40,233 INFO L85 PathProgramCache]: Analyzing trace with hash -195049630, now seen corresponding path program 1 times [2022-11-25 15:35:40,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:40,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768465869] [2022-11-25 15:35:40,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:40,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:35:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:35:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:35:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 15:35:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 15:35:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 15:35:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 15:35:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:35:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:40,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 15:35:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:41,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 15:35:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:41,005 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:35:41,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:41,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768465869] [2022-11-25 15:35:41,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768465869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:41,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:41,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:35:41,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462327082] [2022-11-25 15:35:41,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:41,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:35:41,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:41,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:35:41,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:35:41,011 INFO L87 Difference]: Start difference. First operand 577 states and 944 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:35:50,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:50,900 INFO L93 Difference]: Finished difference Result 1500 states and 2533 transitions. [2022-11-25 15:35:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:35:50,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2022-11-25 15:35:50,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:50,911 INFO L225 Difference]: With dead ends: 1500 [2022-11-25 15:35:50,911 INFO L226 Difference]: Without dead ends: 915 [2022-11-25 15:35:50,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-25 15:35:50,918 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 2245 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 5827 mSolverCounterSat, 782 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 6609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 782 IncrementalHoareTripleChecker+Valid, 5827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:50,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 3097 Invalid, 6609 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [782 Valid, 5827 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-25 15:35:50,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-11-25 15:35:51,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 571. [2022-11-25 15:35:51,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 437 states have (on average 1.643020594965675) internal successors, (718), 453 states have internal predecessors, (718), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:35:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 931 transitions. [2022-11-25 15:35:51,098 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 931 transitions. Word has length 115 [2022-11-25 15:35:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:51,098 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 931 transitions. [2022-11-25 15:35:51,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:35:51,099 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 931 transitions. [2022-11-25 15:35:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 15:35:51,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:51,104 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:35:51,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:35:51,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:51,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:51,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1073224542, now seen corresponding path program 1 times [2022-11-25 15:35:51,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:51,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768703509] [2022-11-25 15:35:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:51,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:35:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:35:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:35:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 15:35:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:35:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:35:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:35:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 15:35:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:35:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-25 15:35:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 15:35:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:35:51,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:51,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768703509] [2022-11-25 15:35:51,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768703509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:51,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:51,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:35:51,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142343578] [2022-11-25 15:35:51,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:51,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:35:51,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:51,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:35:51,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:35:51,794 INFO L87 Difference]: Start difference. First operand 571 states and 931 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:36:00,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:00,017 INFO L93 Difference]: Finished difference Result 1470 states and 2482 transitions. [2022-11-25 15:36:00,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:36:00,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2022-11-25 15:36:00,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:00,025 INFO L225 Difference]: With dead ends: 1470 [2022-11-25 15:36:00,025 INFO L226 Difference]: Without dead ends: 915 [2022-11-25 15:36:00,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:36:00,031 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 1653 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 3053 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 3611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 3053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:00,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 1683 Invalid, 3611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [558 Valid, 3053 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-25 15:36:00,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-11-25 15:36:00,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 571. [2022-11-25 15:36:00,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 437 states have (on average 1.6407322654462242) internal successors, (717), 453 states have internal predecessors, (717), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:36:00,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 930 transitions. [2022-11-25 15:36:00,194 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 930 transitions. Word has length 116 [2022-11-25 15:36:00,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:00,194 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 930 transitions. [2022-11-25 15:36:00,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:36:00,195 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 930 transitions. [2022-11-25 15:36:00,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-25 15:36:00,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:00,199 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:00,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:36:00,199 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:00,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:00,200 INFO L85 PathProgramCache]: Analyzing trace with hash 985652415, now seen corresponding path program 1 times [2022-11-25 15:36:00,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:00,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772518648] [2022-11-25 15:36:00,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:00,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:36:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-25 15:36:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 15:36:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:36:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 15:36:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 15:36:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:36:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 15:36:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:36:00,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:00,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772518648] [2022-11-25 15:36:00,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772518648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:00,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:00,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:36:00,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919504066] [2022-11-25 15:36:00,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:00,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:36:00,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:00,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:36:00,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:36:00,824 INFO L87 Difference]: Start difference. First operand 571 states and 930 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:36:10,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:10,119 INFO L93 Difference]: Finished difference Result 1488 states and 2502 transitions. [2022-11-25 15:36:10,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:36:10,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2022-11-25 15:36:10,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:10,127 INFO L225 Difference]: With dead ends: 1488 [2022-11-25 15:36:10,127 INFO L226 Difference]: Without dead ends: 909 [2022-11-25 15:36:10,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-25 15:36:10,132 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 1701 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 5819 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 3034 SdHoareTripleChecker+Invalid, 6374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 5819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:10,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 3034 Invalid, 6374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [555 Valid, 5819 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-25 15:36:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-11-25 15:36:10,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 565. [2022-11-25 15:36:10,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 431 states have (on average 1.6334106728538282) internal successors, (704), 447 states have internal predecessors, (704), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:36:10,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 917 transitions. [2022-11-25 15:36:10,313 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 917 transitions. Word has length 117 [2022-11-25 15:36:10,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:10,313 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 917 transitions. [2022-11-25 15:36:10,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:36:10,314 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 917 transitions. [2022-11-25 15:36:10,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 15:36:10,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:10,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:10,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:36:10,318 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:10,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:10,318 INFO L85 PathProgramCache]: Analyzing trace with hash -872781980, now seen corresponding path program 1 times [2022-11-25 15:36:10,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:10,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813400133] [2022-11-25 15:36:10,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:10,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:36:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 15:36:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:36:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 15:36:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 15:36:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:36:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 15:36:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 15:36:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:36:10,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:10,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813400133] [2022-11-25 15:36:10,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813400133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:10,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:10,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:36:10,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916667404] [2022-11-25 15:36:10,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:10,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:36:10,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:10,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:36:10,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:10,856 INFO L87 Difference]: Start difference. First operand 565 states and 917 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:36:19,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:19,316 INFO L93 Difference]: Finished difference Result 1458 states and 2453 transitions. [2022-11-25 15:36:19,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:36:19,317 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-11-25 15:36:19,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:19,324 INFO L225 Difference]: With dead ends: 1458 [2022-11-25 15:36:19,324 INFO L226 Difference]: Without dead ends: 909 [2022-11-25 15:36:19,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:36:19,329 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 1090 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 3178 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 3507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 3178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:19,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 1754 Invalid, 3507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [329 Valid, 3178 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-25 15:36:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-11-25 15:36:19,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 565. [2022-11-25 15:36:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 431 states have (on average 1.631090487238979) internal successors, (703), 447 states have internal predecessors, (703), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:36:19,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 916 transitions. [2022-11-25 15:36:19,497 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 916 transitions. Word has length 118 [2022-11-25 15:36:19,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:19,498 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 916 transitions. [2022-11-25 15:36:19,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:36:19,498 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 916 transitions. [2022-11-25 15:36:19,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 15:36:19,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:19,502 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:19,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:36:19,502 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:19,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:19,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1153160642, now seen corresponding path program 1 times [2022-11-25 15:36:19,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:19,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894157147] [2022-11-25 15:36:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:19,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:19,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:19,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:19,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:36:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:20,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 15:36:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:36:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:36:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 15:36:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 15:36:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:36:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:36:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:36:20,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:20,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894157147] [2022-11-25 15:36:20,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894157147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:20,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:20,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:36:20,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161053391] [2022-11-25 15:36:20,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:20,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:36:20,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:20,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:36:20,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:20,131 INFO L87 Difference]: Start difference. First operand 565 states and 916 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:36:27,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:27,887 INFO L93 Difference]: Finished difference Result 1479 states and 2475 transitions. [2022-11-25 15:36:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:36:27,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2022-11-25 15:36:27,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:27,897 INFO L225 Difference]: With dead ends: 1479 [2022-11-25 15:36:27,898 INFO L226 Difference]: Without dead ends: 930 [2022-11-25 15:36:27,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:36:27,902 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 2122 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 3035 mSolverCounterSat, 779 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2234 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 3814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 779 IncrementalHoareTripleChecker+Valid, 3035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:27,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2234 Valid, 1682 Invalid, 3814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [779 Valid, 3035 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-25 15:36:27,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2022-11-25 15:36:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 570. [2022-11-25 15:36:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 436 states have (on average 1.6238532110091743) internal successors, (708), 452 states have internal predecessors, (708), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:36:28,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 921 transitions. [2022-11-25 15:36:28,118 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 921 transitions. Word has length 119 [2022-11-25 15:36:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:28,119 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 921 transitions. [2022-11-25 15:36:28,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:36:28,119 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 921 transitions. [2022-11-25 15:36:28,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 15:36:28,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:28,123 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:28,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:36:28,123 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:28,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:28,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1294448355, now seen corresponding path program 1 times [2022-11-25 15:36:28,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:28,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203445390] [2022-11-25 15:36:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:28,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:36:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 15:36:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:36:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:36:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 15:36:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 15:36:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:36:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 15:36:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:36:28,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:28,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203445390] [2022-11-25 15:36:28,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203445390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:28,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:28,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:36:28,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065487912] [2022-11-25 15:36:28,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:28,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:36:28,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:28,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:36:28,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:36:28,693 INFO L87 Difference]: Start difference. First operand 570 states and 921 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:36:38,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:38,628 INFO L93 Difference]: Finished difference Result 1481 states and 2474 transitions. [2022-11-25 15:36:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:36:38,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2022-11-25 15:36:38,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:38,633 INFO L225 Difference]: With dead ends: 1481 [2022-11-25 15:36:38,633 INFO L226 Difference]: Without dead ends: 903 [2022-11-25 15:36:38,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-25 15:36:38,636 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 1109 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 5881 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 3209 SdHoareTripleChecker+Invalid, 6211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 5881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:38,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 3209 Invalid, 6211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [330 Valid, 5881 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-25 15:36:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-11-25 15:36:38,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 559. [2022-11-25 15:36:38,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 425 states have (on average 1.6211764705882352) internal successors, (689), 441 states have internal predecessors, (689), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:36:38,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 902 transitions. [2022-11-25 15:36:38,797 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 902 transitions. Word has length 119 [2022-11-25 15:36:38,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:38,797 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 902 transitions. [2022-11-25 15:36:38,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:36:38,798 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 902 transitions. [2022-11-25 15:36:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 15:36:38,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:38,801 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:38,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:36:38,802 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:38,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:38,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2076595881, now seen corresponding path program 1 times [2022-11-25 15:36:38,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:38,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751565803] [2022-11-25 15:36:38,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:38,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:36:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 15:36:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 15:36:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:36:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 15:36:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:36:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 15:36:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-25 15:36:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:36:39,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:39,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751565803] [2022-11-25 15:36:39,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751565803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:39,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:39,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:36:39,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702013506] [2022-11-25 15:36:39,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:39,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:36:39,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:39,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:36:39,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:39,303 INFO L87 Difference]: Start difference. First operand 559 states and 902 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:36:47,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:47,224 INFO L93 Difference]: Finished difference Result 1458 states and 2434 transitions. [2022-11-25 15:36:47,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:36:47,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-11-25 15:36:47,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:47,232 INFO L225 Difference]: With dead ends: 1458 [2022-11-25 15:36:47,232 INFO L226 Difference]: Without dead ends: 915 [2022-11-25 15:36:47,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:36:47,235 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 2089 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 2970 mSolverCounterSat, 783 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 3753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 783 IncrementalHoareTripleChecker+Valid, 2970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:47,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 1634 Invalid, 3753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [783 Valid, 2970 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-25 15:36:47,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-11-25 15:36:47,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 565. [2022-11-25 15:36:47,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 431 states have (on average 1.6125290023201857) internal successors, (695), 447 states have internal predecessors, (695), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:36:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 908 transitions. [2022-11-25 15:36:47,532 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 908 transitions. Word has length 120 [2022-11-25 15:36:47,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:47,533 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 908 transitions. [2022-11-25 15:36:47,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:36:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 908 transitions. [2022-11-25 15:36:47,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 15:36:47,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:47,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:47,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 15:36:47,538 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:47,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:47,539 INFO L85 PathProgramCache]: Analyzing trace with hash -341888597, now seen corresponding path program 1 times [2022-11-25 15:36:47,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:47,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869576316] [2022-11-25 15:36:47,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:47,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:47,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:47,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:36:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 15:36:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 15:36:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:36:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 15:36:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:36:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 15:36:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-25 15:36:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:36:48,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:48,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869576316] [2022-11-25 15:36:48,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869576316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:48,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:48,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:36:48,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956029879] [2022-11-25 15:36:48,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:48,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:36:48,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:48,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:36:48,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:36:48,185 INFO L87 Difference]: Start difference. First operand 565 states and 908 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:36:57,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:57,123 INFO L93 Difference]: Finished difference Result 1461 states and 2435 transitions. [2022-11-25 15:36:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 15:36:57,124 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2022-11-25 15:36:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:57,129 INFO L225 Difference]: With dead ends: 1461 [2022-11-25 15:36:57,130 INFO L226 Difference]: Without dead ends: 903 [2022-11-25 15:36:57,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-11-25 15:36:57,134 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 2114 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 5532 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 6313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 5532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:57,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 3025 Invalid, 6313 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [781 Valid, 5532 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-25 15:36:57,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-11-25 15:36:57,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 559. [2022-11-25 15:36:57,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 425 states have (on average 1.6188235294117648) internal successors, (688), 441 states have internal predecessors, (688), 108 states have call successors, (108), 27 states have call predecessors, (108), 25 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-25 15:36:57,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 901 transitions. [2022-11-25 15:36:57,413 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 901 transitions. Word has length 120 [2022-11-25 15:36:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:57,414 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 901 transitions. [2022-11-25 15:36:57,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:36:57,415 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 901 transitions. [2022-11-25 15:36:57,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-25 15:36:57,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:57,419 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:57,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 15:36:57,420 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:57,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:57,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1733699816, now seen corresponding path program 1 times [2022-11-25 15:36:57,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:57,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281614515] [2022-11-25 15:36:57,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:57,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:57,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:57,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:36:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:36:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:36:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:36:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 15:36:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 15:36:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 15:36:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 15:36:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:36:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,081 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 15:36:58,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:58,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281614515] [2022-11-25 15:36:58,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281614515] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:58,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643000260] [2022-11-25 15:36:58,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:58,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:58,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:58,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:58,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:36:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:58,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:36:58,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 15:36:58,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:36:58,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643000260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:58,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:36:58,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-25 15:36:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287522611] [2022-11-25 15:36:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:58,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:58,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:58,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:58,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:36:58,655 INFO L87 Difference]: Start difference. First operand 559 states and 901 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:36:59,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:59,130 INFO L93 Difference]: Finished difference Result 1588 states and 2591 transitions. [2022-11-25 15:36:59,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:59,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-11-25 15:36:59,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:59,136 INFO L225 Difference]: With dead ends: 1588 [2022-11-25 15:36:59,136 INFO L226 Difference]: Without dead ends: 1047 [2022-11-25 15:36:59,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:36:59,139 INFO L413 NwaCegarLoop]: 1613 mSDtfsCounter, 828 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:59,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2410 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:59,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-11-25 15:36:59,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1032. [2022-11-25 15:36:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 792 states have (on average 1.6313131313131313) internal successors, (1292), 823 states have internal predecessors, (1292), 191 states have call successors, (191), 49 states have call predecessors, (191), 48 states have return successors, (193), 185 states have call predecessors, (193), 188 states have call successors, (193) [2022-11-25 15:36:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1676 transitions. [2022-11-25 15:36:59,597 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1676 transitions. Word has length 121 [2022-11-25 15:36:59,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:59,598 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1676 transitions. [2022-11-25 15:36:59,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:36:59,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1676 transitions. [2022-11-25 15:36:59,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 15:36:59,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:59,604 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:59,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:59,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 15:36:59,813 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:59,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:59,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1387648681, now seen corresponding path program 1 times [2022-11-25 15:36:59,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:59,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247515521] [2022-11-25 15:36:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:59,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:37:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:37:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:37:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 15:37:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 15:37:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 15:37:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 15:37:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 15:37:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,474 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 15:37:00,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:00,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247515521] [2022-11-25 15:37:00,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247515521] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:37:00,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507605581] [2022-11-25 15:37:00,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:00,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:37:00,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:37:00,479 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:37:00,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:37:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:00,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1643 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:37:00,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:37:01,014 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 15:37:01,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:37:01,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507605581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:01,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:37:01,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-25 15:37:01,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443388574] [2022-11-25 15:37:01,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:01,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:01,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:01,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:01,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:37:01,018 INFO L87 Difference]: Start difference. First operand 1032 states and 1676 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:37:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:37:01,528 INFO L93 Difference]: Finished difference Result 2534 states and 4143 transitions. [2022-11-25 15:37:01,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:01,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2022-11-25 15:37:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:37:01,541 INFO L225 Difference]: With dead ends: 2534 [2022-11-25 15:37:01,541 INFO L226 Difference]: Without dead ends: 1520 [2022-11-25 15:37:01,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:37:01,547 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 828 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:37:01,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2350 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:37:01,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2022-11-25 15:37:02,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1472. [2022-11-25 15:37:02,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1132 states have (on average 1.6431095406360423) internal successors, (1860), 1178 states have internal predecessors, (1860), 271 states have call successors, (271), 68 states have call predecessors, (271), 68 states have return successors, (278), 264 states have call predecessors, (278), 268 states have call successors, (278) [2022-11-25 15:37:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2409 transitions. [2022-11-25 15:37:02,088 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2409 transitions. Word has length 122 [2022-11-25 15:37:02,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:37:02,089 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2409 transitions. [2022-11-25 15:37:02,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:37:02,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2409 transitions. [2022-11-25 15:37:02,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-25 15:37:02,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:37:02,096 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:37:02,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 15:37:02,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 15:37:02,308 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:37:02,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:02,309 INFO L85 PathProgramCache]: Analyzing trace with hash -158367747, now seen corresponding path program 1 times [2022-11-25 15:37:02,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:02,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286392821] [2022-11-25 15:37:02,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:02,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:37:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:37:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:37:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:37:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:37:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:37:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 15:37:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 15:37:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 15:37:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:37:02,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:02,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286392821] [2022-11-25 15:37:02,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286392821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:02,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:02,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:37:02,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195666228] [2022-11-25 15:37:02,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:02,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:37:02,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:02,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:37:02,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:37:02,926 INFO L87 Difference]: Start difference. First operand 1472 states and 2409 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 15:37:29,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:37:29,640 INFO L93 Difference]: Finished difference Result 7170 states and 13042 transitions. [2022-11-25 15:37:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 15:37:29,641 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2022-11-25 15:37:29,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:37:29,694 INFO L225 Difference]: With dead ends: 7170 [2022-11-25 15:37:29,694 INFO L226 Difference]: Without dead ends: 5716 [2022-11-25 15:37:29,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-11-25 15:37:29,707 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 5122 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 8695 mSolverCounterSat, 2965 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5241 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 11660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2965 IncrementalHoareTripleChecker+Valid, 8695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:37:29,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5241 Valid, 3604 Invalid, 11660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2965 Valid, 8695 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2022-11-25 15:37:29,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5716 states. [2022-11-25 15:37:31,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5716 to 3547. [2022-11-25 15:37:31,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 2589 states have (on average 1.6164542294322133) internal successors, (4185), 2773 states have internal predecessors, (4185), 789 states have call successors, (789), 130 states have call predecessors, (789), 168 states have return successors, (1249), 787 states have call predecessors, (1249), 785 states have call successors, (1249) [2022-11-25 15:37:31,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 6223 transitions. [2022-11-25 15:37:31,576 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 6223 transitions. Word has length 124 [2022-11-25 15:37:31,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:37:31,577 INFO L495 AbstractCegarLoop]: Abstraction has 3547 states and 6223 transitions. [2022-11-25 15:37:31,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 15:37:31,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 6223 transitions. [2022-11-25 15:37:31,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-25 15:37:31,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:37:31,584 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:37:31,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 15:37:31,585 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:37:31,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:31,585 INFO L85 PathProgramCache]: Analyzing trace with hash -320440492, now seen corresponding path program 1 times [2022-11-25 15:37:31,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:31,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743447809] [2022-11-25 15:37:31,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:31,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:37:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:37:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:37:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:37:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 15:37:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 15:37:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 15:37:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 15:37:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 15:37:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 15:37:32,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:32,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743447809] [2022-11-25 15:37:32,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743447809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:32,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:37:32,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:37:32,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132436872] [2022-11-25 15:37:32,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:32,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:37:32,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:32,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:37:32,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:37:32,018 INFO L87 Difference]: Start difference. First operand 3547 states and 6223 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 15:37:41,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:37:41,538 INFO L93 Difference]: Finished difference Result 8070 states and 14453 transitions. [2022-11-25 15:37:41,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:37:41,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2022-11-25 15:37:41,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:37:41,574 INFO L225 Difference]: With dead ends: 8070 [2022-11-25 15:37:41,575 INFO L226 Difference]: Without dead ends: 4541 [2022-11-25 15:37:41,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:37:41,610 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 2014 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 2999 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 3718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 2999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:37:41,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 1743 Invalid, 3718 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [719 Valid, 2999 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-25 15:37:41,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4541 states. [2022-11-25 15:37:43,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4541 to 3551. [2022-11-25 15:37:43,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3551 states, 2592 states have (on average 1.615354938271605) internal successors, (4187), 2776 states have internal predecessors, (4187), 789 states have call successors, (789), 132 states have call predecessors, (789), 169 states have return successors, (1240), 786 states have call predecessors, (1240), 785 states have call successors, (1240) [2022-11-25 15:37:43,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3551 states to 3551 states and 6216 transitions. [2022-11-25 15:37:43,398 INFO L78 Accepts]: Start accepts. Automaton has 3551 states and 6216 transitions. Word has length 125 [2022-11-25 15:37:43,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:37:43,399 INFO L495 AbstractCegarLoop]: Abstraction has 3551 states and 6216 transitions. [2022-11-25 15:37:43,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 15:37:43,400 INFO L276 IsEmpty]: Start isEmpty. Operand 3551 states and 6216 transitions. [2022-11-25 15:37:43,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-25 15:37:43,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:37:43,408 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:37:43,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 15:37:43,409 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:37:43,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:43,409 INFO L85 PathProgramCache]: Analyzing trace with hash -382889354, now seen corresponding path program 1 times [2022-11-25 15:37:43,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:43,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242232597] [2022-11-25 15:37:43,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:43,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:43,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:37:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:37:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:37:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:37:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:37:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:37:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 15:37:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 15:37:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 15:37:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 15:37:44,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:44,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242232597] [2022-11-25 15:37:44,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242232597] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:37:44,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726499361] [2022-11-25 15:37:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:44,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:37:44,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:37:44,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:37:44,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:37:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:44,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:37:44,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:37:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 15:37:44,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:37:44,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726499361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:44,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:37:44,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-25 15:37:44,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337536415] [2022-11-25 15:37:44,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:44,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:44,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:44,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:44,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:37:44,715 INFO L87 Difference]: Start difference. First operand 3551 states and 6216 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 15:37:48,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:37:48,225 INFO L93 Difference]: Finished difference Result 10363 states and 18341 transitions. [2022-11-25 15:37:48,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:48,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2022-11-25 15:37:48,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:37:48,278 INFO L225 Difference]: With dead ends: 10363 [2022-11-25 15:37:48,279 INFO L226 Difference]: Without dead ends: 6831 [2022-11-25 15:37:48,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:37:48,303 INFO L413 NwaCegarLoop]: 965 mSDtfsCounter, 739 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:37:48,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 1778 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:37:48,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6831 states. [2022-11-25 15:37:52,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6794. [2022-11-25 15:37:52,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6794 states, 4934 states have (on average 1.5873530603972437) internal successors, (7832), 5300 states have internal predecessors, (7832), 1526 states have call successors, (1526), 258 states have call predecessors, (1526), 333 states have return successors, (2519), 1523 states have call predecessors, (2519), 1520 states have call successors, (2519) [2022-11-25 15:37:52,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 11877 transitions. [2022-11-25 15:37:52,328 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 11877 transitions. Word has length 125 [2022-11-25 15:37:52,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:37:52,329 INFO L495 AbstractCegarLoop]: Abstraction has 6794 states and 11877 transitions. [2022-11-25 15:37:52,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 15:37:52,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 11877 transitions. [2022-11-25 15:37:52,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 15:37:52,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:37:52,335 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:37:52,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:37:52,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:37:52,543 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:37:52,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:37:52,543 INFO L85 PathProgramCache]: Analyzing trace with hash -87932168, now seen corresponding path program 1 times [2022-11-25 15:37:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:37:52,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705190142] [2022-11-25 15:37:52,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:52,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:37:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:52,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:37:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:37:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:37:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:37:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:37:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:37:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:37:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 15:37:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:37:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:37:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 15:37:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 15:37:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 15:37:53,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:37:53,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705190142] [2022-11-25 15:37:53,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705190142] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:37:53,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67596] [2022-11-25 15:37:53,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:37:53,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:37:53,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:37:53,212 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:37:53,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:37:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:37:53,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:37:53,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:37:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 15:37:53,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:37:53,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:37:53,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:37:53,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 12 [2022-11-25 15:37:53,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908006676] [2022-11-25 15:37:53,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:37:53,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:37:53,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:37:53,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:37:53,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:37:53,567 INFO L87 Difference]: Start difference. First operand 6794 states and 11877 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:37:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:37:59,562 INFO L93 Difference]: Finished difference Result 20268 states and 35740 transitions. [2022-11-25 15:37:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:37:59,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2022-11-25 15:37:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:37:59,643 INFO L225 Difference]: With dead ends: 20268 [2022-11-25 15:37:59,643 INFO L226 Difference]: Without dead ends: 13495 [2022-11-25 15:37:59,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:37:59,684 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 888 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:37:59,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 1895 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:37:59,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13495 states. [2022-11-25 15:38:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13495 to 13392. [2022-11-25 15:38:06,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13392 states, 9744 states have (on average 1.5897988505747127) internal successors, (15491), 10456 states have internal predecessors, (15491), 2992 states have call successors, (2992), 498 states have call predecessors, (2992), 655 states have return successors, (5020), 3007 states have call predecessors, (5020), 2982 states have call successors, (5020) [2022-11-25 15:38:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13392 states to 13392 states and 23503 transitions. [2022-11-25 15:38:06,393 INFO L78 Accepts]: Start accepts. Automaton has 13392 states and 23503 transitions. Word has length 127 [2022-11-25 15:38:06,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:06,394 INFO L495 AbstractCegarLoop]: Abstraction has 13392 states and 23503 transitions. [2022-11-25 15:38:06,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 15:38:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 13392 states and 23503 transitions. [2022-11-25 15:38:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 15:38:06,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:06,401 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:06,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:38:06,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 15:38:06,610 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:38:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:06,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1099049418, now seen corresponding path program 1 times [2022-11-25 15:38:06,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:06,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895865919] [2022-11-25 15:38:06,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:06,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:38:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:38:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:38:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:38:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:38:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:38:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:38:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:38:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 15:38:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:38:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 15:38:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 15:38:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 15:38:07,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:07,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895865919] [2022-11-25 15:38:07,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895865919] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:07,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427219538] [2022-11-25 15:38:07,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:07,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:07,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:07,233 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:07,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:38:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:07,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 15:38:07,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:07,715 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 15:38:07,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:38:07,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427219538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:07,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:38:07,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-11-25 15:38:07,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947607666] [2022-11-25 15:38:07,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:07,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:38:07,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:07,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:38:07,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:38:07,718 INFO L87 Difference]: Start difference. First operand 13392 states and 23503 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-25 15:38:16,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:16,131 INFO L93 Difference]: Finished difference Result 26911 states and 47845 transitions. [2022-11-25 15:38:16,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:38:16,132 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2022-11-25 15:38:16,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:16,224 INFO L225 Difference]: With dead ends: 26911 [2022-11-25 15:38:16,225 INFO L226 Difference]: Without dead ends: 13537 [2022-11-25 15:38:16,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-25 15:38:16,306 INFO L413 NwaCegarLoop]: 995 mSDtfsCounter, 929 mSDsluCounter, 3742 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:16,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 4737 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 15:38:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13537 states. [2022-11-25 15:38:22,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13537 to 12747. [2022-11-25 15:38:23,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12747 states, 9131 states have (on average 1.5718979301281348) internal successors, (14353), 9842 states have internal predecessors, (14353), 3022 states have call successors, (3022), 454 states have call predecessors, (3022), 593 states have return successors, (5084), 3022 states have call predecessors, (5084), 3012 states have call successors, (5084) [2022-11-25 15:38:23,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12747 states to 12747 states and 22459 transitions. [2022-11-25 15:38:23,150 INFO L78 Accepts]: Start accepts. Automaton has 12747 states and 22459 transitions. Word has length 127 [2022-11-25 15:38:23,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:23,152 INFO L495 AbstractCegarLoop]: Abstraction has 12747 states and 22459 transitions. [2022-11-25 15:38:23,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-25 15:38:23,153 INFO L276 IsEmpty]: Start isEmpty. Operand 12747 states and 22459 transitions. [2022-11-25 15:38:23,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-25 15:38:23,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:23,157 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:38:23,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:38:23,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee57f92a-139b-4899-b016-50c75911e4d7/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 15:38:23,374 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:38:23,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:23,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2099247410, now seen corresponding path program 1 times [2022-11-25 15:38:23,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:23,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753866757] [2022-11-25 15:38:23,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:23,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:38:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:38:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:38:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:38:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:38:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:38:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:38:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 15:38:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 15:38:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 15:38:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:38:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:38:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 15:38:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 15:38:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-25 15:38:23,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:23,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753866757] [2022-11-25 15:38:23,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753866757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:23,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:23,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:38:23,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773198706] [2022-11-25 15:38:23,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:23,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:38:23,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:23,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:38:23,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:38:23,888 INFO L87 Difference]: Start difference. First operand 12747 states and 22459 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-25 15:39:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:39:20,998 INFO L93 Difference]: Finished difference Result 56346 states and 111903 transitions. [2022-11-25 15:39:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 15:39:20,999 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2022-11-25 15:39:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:39:21,746 INFO L225 Difference]: With dead ends: 56346 [2022-11-25 15:39:21,746 INFO L226 Difference]: Without dead ends: 43617 [2022-11-25 15:39:21,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-11-25 15:39:21,910 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 4070 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 9069 mSolverCounterSat, 2543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4189 SdHoareTripleChecker+Valid, 3909 SdHoareTripleChecker+Invalid, 11612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2543 IncrementalHoareTripleChecker+Valid, 9069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:39:21,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4189 Valid, 3909 Invalid, 11612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2543 Valid, 9069 Invalid, 0 Unknown, 0 Unchecked, 22.8s Time] [2022-11-25 15:39:21,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43617 states. [2022-11-25 15:39:35,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43617 to 24281. [2022-11-25 15:39:35,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24281 states, 17712 states have (on average 1.5669602529358626) internal successors, (27754), 18941 states have internal predecessors, (27754), 5347 states have call successors, (5347), 902 states have call predecessors, (5347), 1221 states have return successors, (10170), 5357 states have call predecessors, (10170), 5329 states have call successors, (10170) [2022-11-25 15:39:35,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24281 states to 24281 states and 43271 transitions. [2022-11-25 15:39:35,895 INFO L78 Accepts]: Start accepts. Automaton has 24281 states and 43271 transitions. Word has length 135 [2022-11-25 15:39:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:39:35,896 INFO L495 AbstractCegarLoop]: Abstraction has 24281 states and 43271 transitions. [2022-11-25 15:39:35,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-25 15:39:35,896 INFO L276 IsEmpty]: Start isEmpty. Operand 24281 states and 43271 transitions. [2022-11-25 15:39:35,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-25 15:39:35,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:39:35,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:39:35,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 15:39:35,903 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:39:35,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:35,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1682177621, now seen corresponding path program 1 times [2022-11-25 15:39:35,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:35,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037924123] [2022-11-25 15:39:35,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:35,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:39:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:39:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:39:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:39:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:39:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:39:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:39:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:39:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 15:39:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:39:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:39:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:39:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 15:39:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 15:39:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 15:39:36,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:39:36,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037924123] [2022-11-25 15:39:36,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037924123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:39:36,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:39:36,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:39:36,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078003151] [2022-11-25 15:39:36,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:39:36,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:39:36,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:39:36,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:39:36,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:39:36,422 INFO L87 Difference]: Start difference. First operand 24281 states and 43271 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 15:40:03,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:40:03,210 INFO L93 Difference]: Finished difference Result 54320 states and 102519 transitions. [2022-11-25 15:40:03,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:40:03,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2022-11-25 15:40:03,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:40:03,525 INFO L225 Difference]: With dead ends: 54320 [2022-11-25 15:40:03,525 INFO L226 Difference]: Without dead ends: 30057 [2022-11-25 15:40:03,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:40:03,805 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 1578 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:40:03,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 1690 Invalid, 3545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [529 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-25 15:40:03,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30057 states. [2022-11-25 15:40:16,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30057 to 24361. [2022-11-25 15:40:16,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24361 states, 17784 states have (on average 1.5651147098515519) internal successors, (27834), 18997 states have internal predecessors, (27834), 5347 states have call successors, (5347), 934 states have call predecessors, (5347), 1229 states have return successors, (10130), 5349 states have call predecessors, (10130), 5329 states have call successors, (10130) [2022-11-25 15:40:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24361 states to 24361 states and 43311 transitions. [2022-11-25 15:40:16,584 INFO L78 Accepts]: Start accepts. Automaton has 24361 states and 43311 transitions. Word has length 136 [2022-11-25 15:40:16,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:40:16,585 INFO L495 AbstractCegarLoop]: Abstraction has 24361 states and 43311 transitions. [2022-11-25 15:40:16,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 15:40:16,585 INFO L276 IsEmpty]: Start isEmpty. Operand 24361 states and 43311 transitions. [2022-11-25 15:40:16,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 15:40:16,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:40:16,593 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:16,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 15:40:16,593 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:40:16,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:40:16,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1902107534, now seen corresponding path program 1 times [2022-11-25 15:40:16,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:40:16,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780409025] [2022-11-25 15:40:16,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:40:16,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:40:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:16,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:40:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 15:40:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:40:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 15:40:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 15:40:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 15:40:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 15:40:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 15:40:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 15:40:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 15:40:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:40:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:40:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:40:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 15:40:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 15:40:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:40:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 15:40:17,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:40:17,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780409025] [2022-11-25 15:40:17,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780409025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:40:17,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:40:17,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:40:17,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960984865] [2022-11-25 15:40:17,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:40:17,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:40:17,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:40:17,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:40:17,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:40:17,193 INFO L87 Difference]: Start difference. First operand 24361 states and 43311 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18)