./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a --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 787fd4e7c035abcc01b5459445c9a556e2360c9914b85bc4573ad4dc94fc74c0 --- 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-b5237d8 [2022-11-21 16:08:20,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:08:20,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:08:20,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:08:20,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:08:20,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:08:20,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:08:20,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:08:20,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:08:20,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:08:20,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:08:20,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:08:20,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:08:20,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:08:20,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:08:20,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:08:20,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:08:20,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:08:20,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:08:20,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:08:20,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:08:20,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:08:20,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:08:20,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:08:20,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:08:20,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:08:20,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:08:20,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:08:20,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:08:20,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:08:20,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:08:20,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:08:20,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:08:20,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:08:20,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:08:20,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:08:20,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:08:20,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:08:20,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:08:20,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:08:20,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:08:20,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:08:20,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:08:20,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:08:20,417 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:08:20,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:08:20,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:08:20,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:08:20,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:08:20,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:08:20,420 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:08:20,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:08:20,421 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:08:20,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:08:20,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:08:20,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:08:20,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:08:20,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:08:20,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:08:20,422 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:08:20,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:08:20,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:08:20,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:08:20,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:08:20,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:08:20,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:08:20,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:08:20,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:08:20,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:08:20,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:08:20,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:08:20,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:08:20,425 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:08:20,425 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:08:20,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:08:20,426 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_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 787fd4e7c035abcc01b5459445c9a556e2360c9914b85bc4573ad4dc94fc74c0 [2022-11-21 16:08:20,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:08:20,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:08:20,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:08:20,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:08:20,796 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:08:20,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c [2022-11-21 16:08:24,091 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:08:24,878 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:08:24,879 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c [2022-11-21 16:08:24,933 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/data/f8bd0e7ee/417a81f6fc964452b4a6fca6585d0f1b/FLAGab7b15b21 [2022-11-21 16:08:24,954 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/data/f8bd0e7ee/417a81f6fc964452b4a6fca6585d0f1b [2022-11-21 16:08:24,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:08:24,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:08:24,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:08:24,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:08:24,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:08:24,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:08:24" (1/1) ... [2022-11-21 16:08:24,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3392a75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:24, skipping insertion in model container [2022-11-21 16:08:24,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:08:24" (1/1) ... [2022-11-21 16:08:24,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:08:25,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:08:27,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[381679,381692] [2022-11-21 16:08:27,820 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[383339,383352] [2022-11-21 16:08:28,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:08:28,224 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:08:29,502 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[381679,381692] [2022-11-21 16:08:29,508 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c[383339,383352] [2022-11-21 16:08:29,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:08:29,642 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:08:29,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29 WrapperNode [2022-11-21 16:08:29,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:08:29,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:08:29,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:08:29,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:08:29,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:29,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:30,250 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13262 [2022-11-21 16:08:30,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:08:30,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:08:30,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:08:30,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:08:30,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:30,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:30,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:30,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:30,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:30,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:30,824 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:30,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:30,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:08:30,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:08:30,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:08:30,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:08:30,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (1/1) ... [2022-11-21 16:08:31,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:08:31,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:08:31,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:08:31,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ebca9-375d-4137-8022-09437f8f1ffd/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:08:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:08:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-21 16:08:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-21 16:08:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-21 16:08:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-21 16:08:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-21 16:08:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-21 16:08:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-21 16:08:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-21 16:08:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-21 16:08:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-21 16:08:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-21 16:08:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-21 16:08:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-21 16:08:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-21 16:08:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:08:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:08:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:08:31,377 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:08:31,380 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:08:41,596 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:08:41,629 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:08:41,629 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-21 16:08:41,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:08:41 BoogieIcfgContainer [2022-11-21 16:08:41,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:08:41,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:08:41,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:08:41,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:08:41,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:08:24" (1/3) ... [2022-11-21 16:08:41,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464ff01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:08:41, skipping insertion in model container [2022-11-21 16:08:41,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:08:29" (2/3) ... [2022-11-21 16:08:41,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464ff01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:08:41, skipping insertion in model container [2022-11-21 16:08:41,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:08:41" (3/3) ... [2022-11-21 16:08:41,645 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.13.cil-1.c [2022-11-21 16:08:41,670 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:08:41,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 16:08:41,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:08:41,797 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;@ca0aa6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:08:41,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-21 16:08:41,816 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) [2022-11-21 16:08:41,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:08:41,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:08:41,840 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] [2022-11-21 16:08:41,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:08:41,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:41,846 INFO L85 PathProgramCache]: Analyzing trace with hash -384467650, now seen corresponding path program 1 times [2022-11-21 16:08:41,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:41,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524734609] [2022-11-21 16:08:41,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:41,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:08:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:08:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:08:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:42,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:08:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:42,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:08:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:42,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:42,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524734609] [2022-11-21 16:08:42,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524734609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:42,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:42,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:42,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73730535] [2022-11-21 16:08:42,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:42,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:08:42,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:42,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:08:42,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:08:42,847 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) [2022-11-21 16:08:46,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:08:46,388 INFO L93 Difference]: Finished difference Result 5340 states and 9793 transitions. [2022-11-21 16:08:46,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:46,391 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 [2022-11-21 16:08:46,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:08:46,416 INFO L225 Difference]: With dead ends: 5340 [2022-11-21 16:08:46,416 INFO L226 Difference]: Without dead ends: 2683 [2022-11-21 16:08:46,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:08:46,429 INFO L413 NwaCegarLoop]: 4403 mSDtfsCounter, 1125 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:08:46,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 16912 Invalid, 1176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-21 16:08:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-11-21 16:08:46,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-11-21 16:08:46,591 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) [2022-11-21 16:08:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4605 transitions. [2022-11-21 16:08:46,604 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4605 transitions. Word has length 190 [2022-11-21 16:08:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:08:46,605 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4605 transitions. [2022-11-21 16:08:46,605 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) [2022-11-21 16:08:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4605 transitions. [2022-11-21 16:08:46,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:08:46,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:08:46,626 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] [2022-11-21 16:08:46,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:08:46,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:08:46,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:46,627 INFO L85 PathProgramCache]: Analyzing trace with hash 431579580, now seen corresponding path program 1 times [2022-11-21 16:08:46,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:46,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443911948] [2022-11-21 16:08:46,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:46,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:46,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:08:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:46,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:08:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:46,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:08:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:46,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:08:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:08:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:46,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:46,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443911948] [2022-11-21 16:08:46,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443911948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:46,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:46,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:08:46,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891556536] [2022-11-21 16:08:46,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:46,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:08:46,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:08:46,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:08:46,996 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) [2022-11-21 16:08:50,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:08:50,157 INFO L93 Difference]: Finished difference Result 3075 states and 5487 transitions. [2022-11-21 16:08:50,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:08:50,158 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 [2022-11-21 16:08:50,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:08:50,171 INFO L225 Difference]: With dead ends: 3075 [2022-11-21 16:08:50,171 INFO L226 Difference]: Without dead ends: 2683 [2022-11-21 16:08:50,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:08:50,175 INFO L413 NwaCegarLoop]: 4333 mSDtfsCounter, 1111 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:08:50,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 16639 Invalid, 1175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-21 16:08:50,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-11-21 16:08:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-11-21 16:08:50,275 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) [2022-11-21 16:08:50,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4604 transitions. [2022-11-21 16:08:50,287 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4604 transitions. Word has length 190 [2022-11-21 16:08:50,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:08:50,288 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4604 transitions. [2022-11-21 16:08:50,288 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) [2022-11-21 16:08:50,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4604 transitions. [2022-11-21 16:08:50,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:08:50,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:08:50,292 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] [2022-11-21 16:08:50,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:08:50,292 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:08:50,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:50,293 INFO L85 PathProgramCache]: Analyzing trace with hash -217013190, now seen corresponding path program 1 times [2022-11-21 16:08:50,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:50,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774153089] [2022-11-21 16:08:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:50,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:08:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:08:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:08:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:50,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:08:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:50,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:08:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:50,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:50,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:50,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774153089] [2022-11-21 16:08:50,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774153089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:50,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:50,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:08:50,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281520582] [2022-11-21 16:08:50,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:50,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:08:50,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:08:50,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:08:50,770 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) [2022-11-21 16:08:56,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:08:56,060 INFO L93 Difference]: Finished difference Result 3632 states and 6395 transitions. [2022-11-21 16:08:56,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:08:56,061 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 [2022-11-21 16:08:56,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:08:56,076 INFO L225 Difference]: With dead ends: 3632 [2022-11-21 16:08:56,076 INFO L226 Difference]: Without dead ends: 3244 [2022-11-21 16:08:56,079 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 [2022-11-21 16:08:56,080 INFO L413 NwaCegarLoop]: 4338 mSDtfsCounter, 5648 mSDsluCounter, 12917 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:08:56,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5668 Valid, 17255 Invalid, 2673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-21 16:08:56,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2022-11-21 16:08:56,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 2937. [2022-11-21 16:08:56,238 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) [2022-11-21 16:08:56,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 5258 transitions. [2022-11-21 16:08:56,251 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 5258 transitions. Word has length 190 [2022-11-21 16:08:56,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:08:56,252 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 5258 transitions. [2022-11-21 16:08:56,252 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) [2022-11-21 16:08:56,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 5258 transitions. [2022-11-21 16:08:56,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:08:56,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:08:56,256 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] [2022-11-21 16:08:56,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:08:56,256 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:08:56,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:08:56,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2064039626, now seen corresponding path program 1 times [2022-11-21 16:08:56,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:08:56,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796678998] [2022-11-21 16:08:56,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:08:56,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:08:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:56,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:08:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:56,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:08:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:08:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:08:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:56,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:08:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:08:56,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:08:56,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:08:56,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796678998] [2022-11-21 16:08:56,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796678998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:08:56,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:08:56,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:08:56,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266791348] [2022-11-21 16:08:56,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:08:56,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:08:56,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:08:56,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:08:56,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:08:56,771 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) [2022-11-21 16:09:03,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:09:03,606 INFO L93 Difference]: Finished difference Result 4620 states and 7998 transitions. [2022-11-21 16:09:03,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:09:03,608 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 [2022-11-21 16:09:03,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:09:03,624 INFO L225 Difference]: With dead ends: 4620 [2022-11-21 16:09:03,624 INFO L226 Difference]: Without dead ends: 3825 [2022-11-21 16:09:03,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:09:03,629 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 5693 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s 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, 5.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:09:03,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5713 Valid, 22478 Invalid, 3929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-21 16:09:03,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2022-11-21 16:09:03,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3315. [2022-11-21 16:09:03,853 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) [2022-11-21 16:09:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3315 states to 3315 states and 5853 transitions. [2022-11-21 16:09:03,867 INFO L78 Accepts]: Start accepts. Automaton has 3315 states and 5853 transitions. Word has length 190 [2022-11-21 16:09:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:09:03,867 INFO L495 AbstractCegarLoop]: Abstraction has 3315 states and 5853 transitions. [2022-11-21 16:09:03,868 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) [2022-11-21 16:09:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3315 states and 5853 transitions. [2022-11-21 16:09:03,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:09:03,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:09:03,873 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] [2022-11-21 16:09:03,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:09:03,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:09:03,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:03,875 INFO L85 PathProgramCache]: Analyzing trace with hash 307677240, now seen corresponding path program 1 times [2022-11-21 16:09:03,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:03,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621356788] [2022-11-21 16:09:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:03,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:04,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:09:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:04,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:09:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:04,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:09:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:09:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:04,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:09:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:04,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:04,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:04,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621356788] [2022-11-21 16:09:04,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621356788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:04,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:04,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:09:04,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774999371] [2022-11-21 16:09:04,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:04,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:09:04,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:04,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:09:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:09:04,302 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) [2022-11-21 16:09:10,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:09:10,758 INFO L93 Difference]: Finished difference Result 6076 states and 10341 transitions. [2022-11-21 16:09:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:09:10,759 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 [2022-11-21 16:09:10,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:09:10,782 INFO L225 Difference]: With dead ends: 6076 [2022-11-21 16:09:10,782 INFO L226 Difference]: Without dead ends: 4903 [2022-11-21 16:09:10,788 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 [2022-11-21 16:09:10,789 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5687 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3839 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s 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, 5.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:09:10,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5707 Valid, 22476 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3839 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-21 16:09:10,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2022-11-21 16:09:11,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4075. [2022-11-21 16:09:11,183 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) [2022-11-21 16:09:11,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 7054 transitions. [2022-11-21 16:09:11,209 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 7054 transitions. Word has length 190 [2022-11-21 16:09:11,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:09:11,210 INFO L495 AbstractCegarLoop]: Abstraction has 4075 states and 7054 transitions. [2022-11-21 16:09:11,211 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) [2022-11-21 16:09:11,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 7054 transitions. [2022-11-21 16:09:11,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:09:11,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:09:11,217 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] [2022-11-21 16:09:11,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:09:11,218 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:09:11,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:11,219 INFO L85 PathProgramCache]: Analyzing trace with hash 806234042, now seen corresponding path program 1 times [2022-11-21 16:09:11,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:11,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356094603] [2022-11-21 16:09:11,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:11,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:11,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:09:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:09:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:11,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:09:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:11,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:09:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:11,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:09:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:11,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:11,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356094603] [2022-11-21 16:09:11,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356094603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:11,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:11,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:09:11,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728754681] [2022-11-21 16:09:11,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:11,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:09:11,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:11,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:09:11,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:09:11,673 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) [2022-11-21 16:09:18,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:09:18,315 INFO L93 Difference]: Finished difference Result 8882 states and 14826 transitions. [2022-11-21 16:09:18,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:09:18,316 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 [2022-11-21 16:09:18,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:09:18,353 INFO L225 Difference]: With dead ends: 8882 [2022-11-21 16:09:18,353 INFO L226 Difference]: Without dead ends: 6949 [2022-11-21 16:09:18,363 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 [2022-11-21 16:09:18,364 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5686 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3826 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5706 SdHoareTripleChecker+Valid, 22476 SdHoareTripleChecker+Invalid, 3897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:09:18,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5706 Valid, 22476 Invalid, 3897 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [71 Valid, 3826 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-21 16:09:18,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2022-11-21 16:09:19,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 5596. [2022-11-21 16:09:19,057 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) [2022-11-21 16:09:19,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 9462 transitions. [2022-11-21 16:09:19,074 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 9462 transitions. Word has length 190 [2022-11-21 16:09:19,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:09:19,076 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 9462 transitions. [2022-11-21 16:09:19,076 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) [2022-11-21 16:09:19,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 9462 transitions. [2022-11-21 16:09:19,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:09:19,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:09:19,081 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] [2022-11-21 16:09:19,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:09:19,081 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:09:19,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:19,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1376505848, now seen corresponding path program 1 times [2022-11-21 16:09:19,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:19,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378577180] [2022-11-21 16:09:19,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:19,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:19,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:09:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:09:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:09:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:19,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:09:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:19,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:09:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:19,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:19,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378577180] [2022-11-21 16:09:19,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378577180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:19,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:19,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:09:19,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824506649] [2022-11-21 16:09:19,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:19,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:09:19,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:19,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:09:19,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:09:19,459 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) [2022-11-21 16:09:26,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:09:26,416 INFO L93 Difference]: Finished difference Result 14493 states and 23812 transitions. [2022-11-21 16:09:26,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:09:26,418 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 [2022-11-21 16:09:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:09:26,457 INFO L225 Difference]: With dead ends: 14493 [2022-11-21 16:09:26,458 INFO L226 Difference]: Without dead ends: 11039 [2022-11-21 16:09:26,470 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 [2022-11-21 16:09:26,471 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5685 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3813 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:09:26,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5705 Valid, 22476 Invalid, 3884 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3813 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-21 16:09:26,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2022-11-21 16:09:27,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 8645. [2022-11-21 16:09:27,294 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) [2022-11-21 16:09:27,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8645 states to 8645 states and 14306 transitions. [2022-11-21 16:09:27,320 INFO L78 Accepts]: Start accepts. Automaton has 8645 states and 14306 transitions. Word has length 190 [2022-11-21 16:09:27,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:09:27,320 INFO L495 AbstractCegarLoop]: Abstraction has 8645 states and 14306 transitions. [2022-11-21 16:09:27,321 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) [2022-11-21 16:09:27,321 INFO L276 IsEmpty]: Start isEmpty. Operand 8645 states and 14306 transitions. [2022-11-21 16:09:27,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:09:27,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:09:27,327 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] [2022-11-21 16:09:27,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:09:27,328 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:09:27,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:27,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1514592262, now seen corresponding path program 1 times [2022-11-21 16:09:27,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:27,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509489519] [2022-11-21 16:09:27,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:27,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:27,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:09:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:09:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:27,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:09:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:27,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:09:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:27,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:09:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:27,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:27,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:27,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509489519] [2022-11-21 16:09:27,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509489519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:27,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:27,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:09:27,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886993091] [2022-11-21 16:09:27,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:27,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:09:27,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:27,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:09:27,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:09:27,646 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) [2022-11-21 16:09:35,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:09:35,726 INFO L93 Difference]: Finished difference Result 25716 states and 41846 transitions. [2022-11-21 16:09:35,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:09:35,727 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 [2022-11-21 16:09:35,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:09:35,797 INFO L225 Difference]: With dead ends: 25716 [2022-11-21 16:09:35,798 INFO L226 Difference]: Without dead ends: 19213 [2022-11-21 16:09:35,822 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 [2022-11-21 16:09:35,823 INFO L413 NwaCegarLoop]: 4343 mSDtfsCounter, 5798 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 3383 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:09:35,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5818 Valid, 21535 Invalid, 3494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 3383 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-21 16:09:35,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19213 states. [2022-11-21 16:09:37,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19213 to 14758. [2022-11-21 16:09:37,769 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) [2022-11-21 16:09:37,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24070 transitions. [2022-11-21 16:09:37,814 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24070 transitions. Word has length 190 [2022-11-21 16:09:37,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:09:37,814 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24070 transitions. [2022-11-21 16:09:37,815 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) [2022-11-21 16:09:37,815 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24070 transitions. [2022-11-21 16:09:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:09:37,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:09:37,825 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] [2022-11-21 16:09:37,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:09:37,825 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:09:37,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:37,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1994377144, now seen corresponding path program 1 times [2022-11-21 16:09:37,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:37,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570937550] [2022-11-21 16:09:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:37,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:37,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:09:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:38,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:09:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:09:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:38,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:09:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:38,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:09:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:38,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:38,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570937550] [2022-11-21 16:09:38,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570937550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:38,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:38,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:09:38,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916943402] [2022-11-21 16:09:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:38,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:09:38,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:38,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:09:38,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:09:38,171 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) [2022-11-21 16:09:44,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:09:44,296 INFO L93 Difference]: Finished difference Result 32108 states and 52373 transitions. [2022-11-21 16:09:44,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:09:44,297 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 [2022-11-21 16:09:44,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:09:44,370 INFO L225 Difference]: With dead ends: 32108 [2022-11-21 16:09:44,370 INFO L226 Difference]: Without dead ends: 19492 [2022-11-21 16:09:44,408 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 [2022-11-21 16:09:44,409 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 [2022-11-21 16:09:44,410 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] [2022-11-21 16:09:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2022-11-21 16:09:46,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 14758. [2022-11-21 16:09:46,277 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) [2022-11-21 16:09:46,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24037 transitions. [2022-11-21 16:09:46,323 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24037 transitions. Word has length 190 [2022-11-21 16:09:46,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:09:46,323 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24037 transitions. [2022-11-21 16:09:46,324 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) [2022-11-21 16:09:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24037 transitions. [2022-11-21 16:09:46,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:09:46,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:09:46,335 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] [2022-11-21 16:09:46,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:09:46,336 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:09:46,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:46,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1633208262, now seen corresponding path program 1 times [2022-11-21 16:09:46,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:46,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479824681] [2022-11-21 16:09:46,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:46,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:46,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:09:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:46,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:09:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:09:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:09:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:09:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:46,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:46,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479824681] [2022-11-21 16:09:46,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479824681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:46,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:46,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:09:46,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892679823] [2022-11-21 16:09:46,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:46,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:09:46,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:46,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:09:46,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:09:46,690 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) [2022-11-21 16:09:58,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:09:58,003 INFO L93 Difference]: Finished difference Result 48129 states and 77876 transitions. [2022-11-21 16:09:58,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:09:58,004 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 [2022-11-21 16:09:58,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:09:58,155 INFO L225 Difference]: With dead ends: 48129 [2022-11-21 16:09:58,155 INFO L226 Difference]: Without dead ends: 35513 [2022-11-21 16:09:58,195 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 [2022-11-21 16:09:58,196 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 [2022-11-21 16:09:58,197 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] [2022-11-21 16:09:58,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35513 states. [2022-11-21 16:10:01,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35513 to 27048. [2022-11-21 16:10:01,682 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) [2022-11-21 16:10:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27048 states to 27048 states and 43775 transitions. [2022-11-21 16:10:01,982 INFO L78 Accepts]: Start accepts. Automaton has 27048 states and 43775 transitions. Word has length 190 [2022-11-21 16:10:01,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:01,983 INFO L495 AbstractCegarLoop]: Abstraction has 27048 states and 43775 transitions. [2022-11-21 16:10:01,983 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) [2022-11-21 16:10:01,983 INFO L276 IsEmpty]: Start isEmpty. Operand 27048 states and 43775 transitions. [2022-11-21 16:10:01,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:10:02,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:02,000 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] [2022-11-21 16:10:02,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:10:02,000 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:02,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:02,001 INFO L85 PathProgramCache]: Analyzing trace with hash 466530168, now seen corresponding path program 1 times [2022-11-21 16:10:02,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:02,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060875808] [2022-11-21 16:10:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:02,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:02,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:10:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:02,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:10:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:02,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:10:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:10:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:02,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:10:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:02,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:02,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060875808] [2022-11-21 16:10:02,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060875808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:02,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:02,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:10:02,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498835115] [2022-11-21 16:10:02,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:02,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:10:02,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:02,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:10:02,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:10:02,338 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) [2022-11-21 16:10:20,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:20,594 INFO L93 Difference]: Finished difference Result 93025 states and 150812 transitions. [2022-11-21 16:10:20,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:10:20,595 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 [2022-11-21 16:10:20,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:20,860 INFO L225 Difference]: With dead ends: 93025 [2022-11-21 16:10:20,861 INFO L226 Difference]: Without dead ends: 68119 [2022-11-21 16:10:20,951 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 [2022-11-21 16:10:20,952 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5681 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3744 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 4.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:20,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5701 Valid, 22476 Invalid, 3815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3744 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-21 16:10:21,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68119 states. [2022-11-21 16:10:29,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68119 to 51689. [2022-11-21 16:10:29,766 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) [2022-11-21 16:10:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51689 states to 51689 states and 83827 transitions. [2022-11-21 16:10:29,926 INFO L78 Accepts]: Start accepts. Automaton has 51689 states and 83827 transitions. Word has length 190 [2022-11-21 16:10:29,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:29,927 INFO L495 AbstractCegarLoop]: Abstraction has 51689 states and 83827 transitions. [2022-11-21 16:10:29,927 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) [2022-11-21 16:10:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 51689 states and 83827 transitions. [2022-11-21 16:10:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:10:29,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:29,964 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] [2022-11-21 16:10:29,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:10:29,965 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:29,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:29,966 INFO L85 PathProgramCache]: Analyzing trace with hash 811358330, now seen corresponding path program 1 times [2022-11-21 16:10:29,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:29,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590056508] [2022-11-21 16:10:29,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:29,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:10:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:30,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:10:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:10:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:10:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:30,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:10:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:30,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:30,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:30,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590056508] [2022-11-21 16:10:30,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590056508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:30,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:30,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:10:30,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392488357] [2022-11-21 16:10:30,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:30,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:10:30,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:30,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:10:30,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:10:30,431 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) [2022-11-21 16:10:46,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:46,555 INFO L93 Difference]: Finished difference Result 118634 states and 194806 transitions. [2022-11-21 16:10:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:10:46,555 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 [2022-11-21 16:10:46,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:46,797 INFO L225 Difference]: With dead ends: 118634 [2022-11-21 16:10:46,797 INFO L226 Difference]: Without dead ends: 69087 [2022-11-21 16:10:46,941 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 [2022-11-21 16:10:46,941 INFO L413 NwaCegarLoop]: 4286 mSDtfsCounter, 5377 mSDsluCounter, 12687 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5398 SdHoareTripleChecker+Valid, 16973 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:46,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5398 Valid, 16973 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-21 16:10:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69087 states. [2022-11-21 16:10:54,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69087 to 51689. [2022-11-21 16:10:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51689 states, 47940 states have (on average 1.5789528577388403) internal successors, (75695), 48071 states have internal predecessors, (75695), 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) [2022-11-21 16:10:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51689 states to 51689 states and 83698 transitions. [2022-11-21 16:10:54,973 INFO L78 Accepts]: Start accepts. Automaton has 51689 states and 83698 transitions. Word has length 190 [2022-11-21 16:10:54,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:54,973 INFO L495 AbstractCegarLoop]: Abstraction has 51689 states and 83698 transitions. [2022-11-21 16:10:54,974 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) [2022-11-21 16:10:54,974 INFO L276 IsEmpty]: Start isEmpty. Operand 51689 states and 83698 transitions. [2022-11-21 16:10:55,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-21 16:10:55,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:55,010 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] [2022-11-21 16:10:55,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:10:55,011 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:55,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:55,011 INFO L85 PathProgramCache]: Analyzing trace with hash -958113284, now seen corresponding path program 1 times [2022-11-21 16:10:55,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:55,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230465984] [2022-11-21 16:10:55,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:55,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:55,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 16:10:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:55,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:10:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:55,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:10:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:10:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-21 16:10:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:55,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:55,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:55,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230465984] [2022-11-21 16:10:55,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230465984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:55,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:55,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:10:55,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452468994] [2022-11-21 16:10:55,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:55,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:10:55,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:55,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:10:55,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:10:55,324 INFO L87 Difference]: Start difference. First operand 51689 states and 83698 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)