./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro --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 21d4f13e72175539cc78aacb8d1d416269d0755bd0c7a4b3f37d9d8805a7ca70 --- 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-8393723 [2022-11-18 18:47:31,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:47:31,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:47:31,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:47:31,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:47:31,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:47:31,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:47:31,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:47:31,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:47:31,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:47:31,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:47:31,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:47:31,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:47:31,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:47:31,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:47:31,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:47:31,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:47:31,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:47:31,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:47:31,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:47:31,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:47:31,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:47:31,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:47:31,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:47:31,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:47:31,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:47:31,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:47:31,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:47:31,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:47:31,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:47:31,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:47:31,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:47:31,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:47:31,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:47:31,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:47:31,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:47:31,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:47:31,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:47:31,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:47:31,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:47:31,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:47:31,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:47:31,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:47:31,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:47:31,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:47:31,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:47:31,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:47:31,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:47:31,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:47:31,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:47:31,214 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:47:31,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:47:31,216 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:47:31,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:47:31,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:47:31,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:47:31,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:47:31,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:47:31,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:47:31,218 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:47:31,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:47:31,218 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:47:31,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:47:31,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:47:31,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:47:31,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:47:31,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:47:31,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:47:31,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:47:31,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:47:31,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:47:31,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:47:31,223 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:47:31,223 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:47:31,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:47:31,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21d4f13e72175539cc78aacb8d1d416269d0755bd0c7a4b3f37d9d8805a7ca70 [2022-11-18 18:47:31,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:47:31,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:47:31,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:47:31,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:47:31,615 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:47:31,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c [2022-11-18 18:47:31,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/data/8d4d2d3a0/f4866e69051f4df9936c9c34df4f1436/FLAGaba600083 [2022-11-18 18:47:32,933 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:47:32,934 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c [2022-11-18 18:47:33,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/data/8d4d2d3a0/f4866e69051f4df9936c9c34df4f1436/FLAGaba600083 [2022-11-18 18:47:33,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/data/8d4d2d3a0/f4866e69051f4df9936c9c34df4f1436 [2022-11-18 18:47:33,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:47:33,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:47:33,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:47:33,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:47:33,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:47:33,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:47:33" (1/1) ... [2022-11-18 18:47:33,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1f1cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:33, skipping insertion in model container [2022-11-18 18:47:33,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:47:33" (1/1) ... [2022-11-18 18:47:33,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:47:33,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:47:36,096 WARN L234 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_3a2effa2-6654-45db-9fd9-9421482c89ef/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c[380593,380606] [2022-11-18 18:47:36,127 WARN L234 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_3a2effa2-6654-45db-9fd9-9421482c89ef/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c[383339,383352] [2022-11-18 18:47:36,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:47:36,498 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:47:37,796 WARN L234 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_3a2effa2-6654-45db-9fd9-9421482c89ef/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c[380593,380606] [2022-11-18 18:47:37,804 WARN L234 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_3a2effa2-6654-45db-9fd9-9421482c89ef/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c[383339,383352] [2022-11-18 18:47:37,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:47:38,021 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:47:38,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38 WrapperNode [2022-11-18 18:47:38,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:47:38,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:47:38,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:47:38,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:47:38,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:38,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:38,711 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13262 [2022-11-18 18:47:38,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:47:38,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:47:38,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:47:38,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:47:38,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:38,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:38,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:38,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:39,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:39,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:39,317 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:39,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:39,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:47:39,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:47:39,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:47:39,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:47:39,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (1/1) ... [2022-11-18 18:47:39,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:47:39,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:47:39,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:47:39,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2effa2-6654-45db-9fd9-9421482c89ef/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:47:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:47:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-18 18:47:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-18 18:47:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-18 18:47:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-18 18:47:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-18 18:47:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-18 18:47:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-18 18:47:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-18 18:47:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-18 18:47:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-18 18:47:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-18 18:47:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-18 18:47:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-18 18:47:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-18 18:47:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:47:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:47:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:47:39,782 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:47:39,784 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:47:50,006 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:47:50,050 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:47:50,050 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-18 18:47:50,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:47:50 BoogieIcfgContainer [2022-11-18 18:47:50,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:47:50,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:47:50,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:47:50,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:47:50,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:47:33" (1/3) ... [2022-11-18 18:47:50,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494296d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:47:50, skipping insertion in model container [2022-11-18 18:47:50,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:38" (2/3) ... [2022-11-18 18:47:50,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494296d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:47:50, skipping insertion in model container [2022-11-18 18:47:50,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:47:50" (3/3) ... [2022-11-18 18:47:50,071 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.13.cil-1.c [2022-11-18 18:47:50,098 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:47:50,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 18:47:50,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:47:50,226 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;@39ee175, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:47:50,226 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 18:47:50,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-18 18:47:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:47:50,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:47:50,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:47:50,266 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:47:50,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:50,272 INFO L85 PathProgramCache]: Analyzing trace with hash -384467650, now seen corresponding path program 1 times [2022-11-18 18:47:50,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:50,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106036161] [2022-11-18 18:47:50,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:50,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:50,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:47:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:50,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:47:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:50,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:47:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:47:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:51,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:47:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:51,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:47:51,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:51,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106036161] [2022-11-18 18:47:51,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106036161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:51,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:51,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:47:51,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123449394] [2022-11-18 18:47:51,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:51,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:47:51,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:51,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:47:51,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:47:51,246 INFO L87 Difference]: Start difference. First operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:47:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:47:54,586 INFO L93 Difference]: Finished difference Result 5340 states and 9793 transitions. [2022-11-18 18:47:54,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:47:54,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:47:54,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:47:54,641 INFO L225 Difference]: With dead ends: 5340 [2022-11-18 18:47:54,642 INFO L226 Difference]: Without dead ends: 2683 [2022-11-18 18:47:54,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:47:54,662 INFO L413 NwaCegarLoop]: 4403 mSDtfsCounter, 1125 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 16912 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:47:54,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 16912 Invalid, 1176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-18 18:47:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-11-18 18:47:54,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-11-18 18:47:54,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2493 states have (on average 1.824709185720016) internal successors, (4549), 2496 states have internal predecessors, (4549), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-18 18:47:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4605 transitions. [2022-11-18 18:47:54,943 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4605 transitions. Word has length 190 [2022-11-18 18:47:54,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:47:54,944 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4605 transitions. [2022-11-18 18:47:54,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:47:54,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4605 transitions. [2022-11-18 18:47:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:47:54,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:47:54,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:47:54,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:47:54,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:47:54,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:54,952 INFO L85 PathProgramCache]: Analyzing trace with hash 431579580, now seen corresponding path program 1 times [2022-11-18 18:47:54,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:54,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081104132] [2022-11-18 18:47:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:54,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:47:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:55,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:47:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:55,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:47:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:55,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:47:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:47:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:55,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:47:55,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:55,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081104132] [2022-11-18 18:47:55,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081104132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:55,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:55,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:47:55,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418377714] [2022-11-18 18:47:55,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:55,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:47:55,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:55,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:47:55,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:47:55,316 INFO L87 Difference]: Start difference. First operand 2530 states and 4605 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:47:58,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:47:58,764 INFO L93 Difference]: Finished difference Result 3075 states and 5487 transitions. [2022-11-18 18:47:58,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:47:58,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:47:58,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:47:58,785 INFO L225 Difference]: With dead ends: 3075 [2022-11-18 18:47:58,785 INFO L226 Difference]: Without dead ends: 2683 [2022-11-18 18:47:58,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:47:58,794 INFO L413 NwaCegarLoop]: 4333 mSDtfsCounter, 1111 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 16639 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:47:58,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 16639 Invalid, 1175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-18 18:47:58,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-11-18 18:47:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-11-18 18:47:59,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2493 states have (on average 1.8243080625752106) internal successors, (4548), 2496 states have internal predecessors, (4548), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-18 18:47:59,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4604 transitions. [2022-11-18 18:47:59,060 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4604 transitions. Word has length 190 [2022-11-18 18:47:59,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:47:59,061 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4604 transitions. [2022-11-18 18:47:59,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:47:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4604 transitions. [2022-11-18 18:47:59,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:47:59,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:47:59,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:47:59,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:47:59,066 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:47:59,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:59,067 INFO L85 PathProgramCache]: Analyzing trace with hash -217013190, now seen corresponding path program 1 times [2022-11-18 18:47:59,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:59,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482988262] [2022-11-18 18:47:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:59,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:47:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:59,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:47:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:47:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:59,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:47:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:47:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:47:59,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:59,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482988262] [2022-11-18 18:47:59,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482988262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:59,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:59,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:47:59,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801834340] [2022-11-18 18:47:59,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:59,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:47:59,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:59,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:47:59,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:47:59,474 INFO L87 Difference]: Start difference. First operand 2530 states and 4604 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:04,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:04,653 INFO L93 Difference]: Finished difference Result 3632 states and 6395 transitions. [2022-11-18 18:48:04,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:48:04,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:48:04,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:04,670 INFO L225 Difference]: With dead ends: 3632 [2022-11-18 18:48:04,670 INFO L226 Difference]: Without dead ends: 3244 [2022-11-18 18:48:04,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:48:04,675 INFO L413 NwaCegarLoop]: 4338 mSDtfsCounter, 5648 mSDsluCounter, 12917 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5668 SdHoareTripleChecker+Valid, 17255 SdHoareTripleChecker+Invalid, 2673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:04,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5668 Valid, 17255 Invalid, 2673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-18 18:48:04,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2022-11-18 18:48:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 2937. [2022-11-18 18:48:04,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2871 states have (on average 1.79554162312783) internal successors, (5155), 2875 states have internal predecessors, (5155), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-11-18 18:48:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 5258 transitions. [2022-11-18 18:48:04,865 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 5258 transitions. Word has length 190 [2022-11-18 18:48:04,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:04,865 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 5258 transitions. [2022-11-18 18:48:04,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:04,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 5258 transitions. [2022-11-18 18:48:04,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:48:04,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:04,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:04,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:48:04,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:04,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:04,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2064039626, now seen corresponding path program 1 times [2022-11-18 18:48:04,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:04,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313807155] [2022-11-18 18:48:04,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:04,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:05,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:48:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:48:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:05,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:48:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:05,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:48:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:05,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:48:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:05,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:05,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:05,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313807155] [2022-11-18 18:48:05,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313807155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:05,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:05,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:48:05,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270615055] [2022-11-18 18:48:05,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:05,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:48:05,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:05,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:48:05,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:48:05,380 INFO L87 Difference]: Start difference. First operand 2937 states and 5258 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:11,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:11,584 INFO L93 Difference]: Finished difference Result 4620 states and 7998 transitions. [2022-11-18 18:48:11,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:48:11,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:48:11,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:11,601 INFO L225 Difference]: With dead ends: 4620 [2022-11-18 18:48:11,604 INFO L226 Difference]: Without dead ends: 3825 [2022-11-18 18:48:11,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:48:11,619 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 5693 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5713 SdHoareTripleChecker+Valid, 22478 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:11,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5713 Valid, 22478 Invalid, 3929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-18 18:48:11,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2022-11-18 18:48:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3315. [2022-11-18 18:48:11,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3315 states, 3220 states have (on average 1.7714285714285714) internal successors, (5704), 3225 states have internal predecessors, (5704), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-11-18 18:48:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3315 states to 3315 states and 5853 transitions. [2022-11-18 18:48:11,877 INFO L78 Accepts]: Start accepts. Automaton has 3315 states and 5853 transitions. Word has length 190 [2022-11-18 18:48:11,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:11,885 INFO L495 AbstractCegarLoop]: Abstraction has 3315 states and 5853 transitions. [2022-11-18 18:48:11,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3315 states and 5853 transitions. [2022-11-18 18:48:11,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:48:11,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:11,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:11,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:48:11,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:11,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:11,890 INFO L85 PathProgramCache]: Analyzing trace with hash 307677240, now seen corresponding path program 1 times [2022-11-18 18:48:11,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:11,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88600364] [2022-11-18 18:48:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:11,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:12,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:48:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:12,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:48:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:48:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:12,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:48:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:12,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:48:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:12,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:12,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88600364] [2022-11-18 18:48:12,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88600364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:12,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:12,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:48:12,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065631321] [2022-11-18 18:48:12,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:12,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:48:12,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:12,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:48:12,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:48:12,299 INFO L87 Difference]: Start difference. First operand 3315 states and 5853 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:19,068 INFO L93 Difference]: Finished difference Result 6076 states and 10341 transitions. [2022-11-18 18:48:19,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:48:19,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:48:19,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:19,096 INFO L225 Difference]: With dead ends: 6076 [2022-11-18 18:48:19,096 INFO L226 Difference]: Without dead ends: 4903 [2022-11-18 18:48:19,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:48:19,106 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5687 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3839 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5707 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:19,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5707 Valid, 22476 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3839 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-18 18:48:19,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2022-11-18 18:48:19,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4075. [2022-11-18 18:48:19,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 3922 states have (on average 1.7361040285568587) internal successors, (6809), 3929 states have internal predecessors, (6809), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-11-18 18:48:19,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 7054 transitions. [2022-11-18 18:48:19,595 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 7054 transitions. Word has length 190 [2022-11-18 18:48:19,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:19,595 INFO L495 AbstractCegarLoop]: Abstraction has 4075 states and 7054 transitions. [2022-11-18 18:48:19,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:19,597 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 7054 transitions. [2022-11-18 18:48:19,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:48:19,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:19,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:19,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:48:19,602 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:19,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash 806234042, now seen corresponding path program 1 times [2022-11-18 18:48:19,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:19,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319690472] [2022-11-18 18:48:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:19,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:19,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:48:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:19,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:48:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:48:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:48:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:20,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:48:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:20,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:20,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319690472] [2022-11-18 18:48:20,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319690472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:20,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:20,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:48:20,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176936893] [2022-11-18 18:48:20,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:20,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:48:20,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:20,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:48:20,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:48:20,044 INFO L87 Difference]: Start difference. First operand 4075 states and 7054 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:26,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:26,900 INFO L93 Difference]: Finished difference Result 8882 states and 14826 transitions. [2022-11-18 18:48:26,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:48:26,901 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:48:26,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:26,934 INFO L225 Difference]: With dead ends: 8882 [2022-11-18 18:48:26,934 INFO L226 Difference]: Without dead ends: 6949 [2022-11-18 18:48:26,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:48:26,944 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5686 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3826 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5706 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:26,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5706 Valid, 22476 Invalid, 3897 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3826 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-18 18:48:26,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2022-11-18 18:48:27,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 5596. [2022-11-18 18:48:27,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 5327 states have (on average 1.6930730242162568) internal successors, (9019), 5338 states have internal predecessors, (9019), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-11-18 18:48:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 9462 transitions. [2022-11-18 18:48:27,621 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 9462 transitions. Word has length 190 [2022-11-18 18:48:27,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:27,622 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 9462 transitions. [2022-11-18 18:48:27,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:27,623 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 9462 transitions. [2022-11-18 18:48:27,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:48:27,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:27,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:27,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:48:27,629 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:27,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:27,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1376505848, now seen corresponding path program 1 times [2022-11-18 18:48:27,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:27,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089922829] [2022-11-18 18:48:27,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:27,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:27,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:48:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:27,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:48:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:27,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:48:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:27,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:48:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:48:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:28,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:28,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089922829] [2022-11-18 18:48:28,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089922829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:28,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:28,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:48:28,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460092489] [2022-11-18 18:48:28,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:28,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:48:28,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:28,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:48:28,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:48:28,010 INFO L87 Difference]: Start difference. First operand 5596 states and 9462 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:35,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:35,467 INFO L93 Difference]: Finished difference Result 14493 states and 23812 transitions. [2022-11-18 18:48:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:48:35,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:48:35,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:35,512 INFO L225 Difference]: With dead ends: 14493 [2022-11-18 18:48:35,512 INFO L226 Difference]: Without dead ends: 11039 [2022-11-18 18:48:35,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:48:35,526 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5685 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3813 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5705 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:35,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5705 Valid, 22476 Invalid, 3884 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3813 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-18 18:48:35,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2022-11-18 18:48:36,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 8645. [2022-11-18 18:48:36,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8645 states, 8144 states have (on average 1.6513998035363457) internal successors, (13449), 8163 states have internal predecessors, (13449), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-11-18 18:48:36,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8645 states to 8645 states and 14306 transitions. [2022-11-18 18:48:36,412 INFO L78 Accepts]: Start accepts. Automaton has 8645 states and 14306 transitions. Word has length 190 [2022-11-18 18:48:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:36,413 INFO L495 AbstractCegarLoop]: Abstraction has 8645 states and 14306 transitions. [2022-11-18 18:48:36,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 8645 states and 14306 transitions. [2022-11-18 18:48:36,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:48:36,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:36,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:36,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:48:36,422 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:36,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:36,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1514592262, now seen corresponding path program 1 times [2022-11-18 18:48:36,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:36,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094341054] [2022-11-18 18:48:36,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:36,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:36,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:48:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:48:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:36,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:48:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:36,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:48:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:36,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:48:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:36,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:36,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094341054] [2022-11-18 18:48:36,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094341054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:36,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:36,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:48:36,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065915024] [2022-11-18 18:48:36,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:36,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:48:36,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:36,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:48:36,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:48:36,776 INFO L87 Difference]: Start difference. First operand 8645 states and 14306 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:44,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:44,753 INFO L93 Difference]: Finished difference Result 25716 states and 41846 transitions. [2022-11-18 18:48:44,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:48:44,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:48:44,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:44,827 INFO L225 Difference]: With dead ends: 25716 [2022-11-18 18:48:44,827 INFO L226 Difference]: Without dead ends: 19213 [2022-11-18 18:48:44,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:48:44,855 INFO L413 NwaCegarLoop]: 4343 mSDtfsCounter, 5798 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 3383 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5818 SdHoareTripleChecker+Valid, 21535 SdHoareTripleChecker+Invalid, 3494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:44,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5818 Valid, 21535 Invalid, 3494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 3383 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-18 18:48:44,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19213 states. [2022-11-18 18:48:46,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19213 to 14758. [2022-11-18 18:48:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14758 states, 13793 states have (on average 1.6190096425723193) internal successors, (22331), 13828 states have internal predecessors, (22331), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-11-18 18:48:46,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24070 transitions. [2022-11-18 18:48:46,614 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24070 transitions. Word has length 190 [2022-11-18 18:48:46,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:46,615 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24070 transitions. [2022-11-18 18:48:46,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:46,616 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24070 transitions. [2022-11-18 18:48:46,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:48:46,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:46,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:46,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:48:46,628 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:46,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:46,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1994377144, now seen corresponding path program 1 times [2022-11-18 18:48:46,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:46,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522114000] [2022-11-18 18:48:46,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:46,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:46,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:48:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:46,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:48:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:46,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:48:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:46,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:48:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:48:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:47,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:47,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:47,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522114000] [2022-11-18 18:48:47,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522114000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:47,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:47,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:48:47,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59557130] [2022-11-18 18:48:47,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:47,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:48:47,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:47,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:48:47,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:48:47,011 INFO L87 Difference]: Start difference. First operand 14758 states and 24070 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:52,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:48:52,966 INFO L93 Difference]: Finished difference Result 32108 states and 52373 transitions. [2022-11-18 18:48:52,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:48:52,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:48:52,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:48:53,052 INFO L225 Difference]: With dead ends: 32108 [2022-11-18 18:48:53,052 INFO L226 Difference]: Without dead ends: 19492 [2022-11-18 18:48:53,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:48:53,103 INFO L413 NwaCegarLoop]: 4286 mSDtfsCounter, 5194 mSDsluCounter, 16860 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5215 SdHoareTripleChecker+Valid, 21146 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-18 18:48:53,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5215 Valid, 21146 Invalid, 2023 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 1951 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-18 18:48:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2022-11-18 18:48:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 14758. [2022-11-18 18:48:55,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14758 states, 13793 states have (on average 1.6166171246284347) internal successors, (22298), 13828 states have internal predecessors, (22298), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-11-18 18:48:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24037 transitions. [2022-11-18 18:48:55,180 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24037 transitions. Word has length 190 [2022-11-18 18:48:55,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:48:55,181 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24037 transitions. [2022-11-18 18:48:55,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:48:55,181 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24037 transitions. [2022-11-18 18:48:55,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:48:55,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:48:55,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:48:55,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:48:55,193 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:48:55,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:48:55,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1633208262, now seen corresponding path program 1 times [2022-11-18 18:48:55,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:48:55,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728777589] [2022-11-18 18:48:55,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:48:55,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:48:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:55,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:48:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:55,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:48:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:55,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:48:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:55,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:48:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:55,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:48:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:48:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:48:55,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:48:55,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728777589] [2022-11-18 18:48:55,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728777589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:48:55,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:48:55,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:48:55,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764008068] [2022-11-18 18:48:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:48:55,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:48:55,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:48:55,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:48:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:48:55,541 INFO L87 Difference]: Start difference. First operand 14758 states and 24037 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:49:06,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:06,787 INFO L93 Difference]: Finished difference Result 48129 states and 77876 transitions. [2022-11-18 18:49:06,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:49:06,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:49:06,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:06,939 INFO L225 Difference]: With dead ends: 48129 [2022-11-18 18:49:06,939 INFO L226 Difference]: Without dead ends: 35513 [2022-11-18 18:49:06,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:49:06,981 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5676 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5696 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:06,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5696 Valid, 22476 Invalid, 3833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3762 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-18 18:49:07,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35513 states. [2022-11-18 18:49:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35513 to 27048. [2022-11-18 18:49:10,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27048 states, 25155 states have (on average 1.5945140131186644) internal successors, (40110), 25222 states have internal predecessors, (40110), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-11-18 18:49:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27048 states to 27048 states and 43775 transitions. [2022-11-18 18:49:10,893 INFO L78 Accepts]: Start accepts. Automaton has 27048 states and 43775 transitions. Word has length 190 [2022-11-18 18:49:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:10,893 INFO L495 AbstractCegarLoop]: Abstraction has 27048 states and 43775 transitions. [2022-11-18 18:49:10,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:49:10,894 INFO L276 IsEmpty]: Start isEmpty. Operand 27048 states and 43775 transitions. [2022-11-18 18:49:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:49:10,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:10,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:10,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:49:10,916 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:49:10,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:10,917 INFO L85 PathProgramCache]: Analyzing trace with hash 466530168, now seen corresponding path program 1 times [2022-11-18 18:49:10,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:10,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242733079] [2022-11-18 18:49:10,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:10,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:11,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:49:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:11,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:49:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:49:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:49:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:49:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:11,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:11,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242733079] [2022-11-18 18:49:11,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242733079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:11,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:11,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:49:11,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131059027] [2022-11-18 18:49:11,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:11,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:49:11,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:11,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:49:11,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:49:11,277 INFO L87 Difference]: Start difference. First operand 27048 states and 43775 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:49:29,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:49:29,047 INFO L93 Difference]: Finished difference Result 93025 states and 150812 transitions. [2022-11-18 18:49:29,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:49:29,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 18:49:29,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:49:29,428 INFO L225 Difference]: With dead ends: 93025 [2022-11-18 18:49:29,429 INFO L226 Difference]: Without dead ends: 68119 [2022-11-18 18:49:29,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:49:29,511 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5681 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3744 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5701 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:49:29,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5701 Valid, 22476 Invalid, 3815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3744 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-18 18:49:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68119 states. [2022-11-18 18:49:37,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68119 to 51689. [2022-11-18 18:49:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51689 states, 47940 states have (on average 1.5816437213183145) internal successors, (75824), 48071 states have internal predecessors, (75824), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-11-18 18:49:37,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51689 states to 51689 states and 83827 transitions. [2022-11-18 18:49:37,735 INFO L78 Accepts]: Start accepts. Automaton has 51689 states and 83827 transitions. Word has length 190 [2022-11-18 18:49:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:49:37,736 INFO L495 AbstractCegarLoop]: Abstraction has 51689 states and 83827 transitions. [2022-11-18 18:49:37,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 18:49:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 51689 states and 83827 transitions. [2022-11-18 18:49:37,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 18:49:37,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:49:37,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:49:37,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:49:37,771 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:49:37,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:49:37,772 INFO L85 PathProgramCache]: Analyzing trace with hash 811358330, now seen corresponding path program 1 times [2022-11-18 18:49:37,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:49:37,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144891751] [2022-11-18 18:49:37,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:49:37,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:49:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:38,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 18:49:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:38,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 18:49:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:38,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 18:49:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 18:49:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:38,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 18:49:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:49:38,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:49:38,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:49:38,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144891751] [2022-11-18 18:49:38,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144891751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:49:38,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:49:38,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:49:38,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409449170] [2022-11-18 18:49:38,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:49:38,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:49:38,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:49:38,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:49:38,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:49:38,257 INFO L87 Difference]: Start difference. First operand 51689 states and 83827 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)