./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ae3736aabcb020d122100864e41791456e1f94490735ab1a93eef5c54883fe7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:44:15,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:44:15,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:44:15,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:44:15,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:44:15,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:44:15,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:44:15,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:44:15,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:44:15,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:44:15,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:44:15,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:44:15,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:44:15,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:44:15,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:44:15,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:44:15,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:44:15,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:44:15,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:44:15,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:44:15,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:44:15,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:44:15,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:44:15,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:44:15,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:44:15,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:44:15,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:44:15,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:44:15,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:44:15,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:44:15,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:44:15,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:44:15,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:44:15,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:44:15,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:44:15,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:44:15,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:44:15,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:44:15,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:44:15,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:44:15,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:44:15,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:44:15,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:44:15,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:44:15,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:44:15,453 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:44:15,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:44:15,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:44:15,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:44:15,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:44:15,455 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:44:15,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:44:15,456 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:44:15,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:44:15,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:44:15,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:44:15,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:44:15,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:44:15,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:44:15,458 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:44:15,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:44:15,458 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:44:15,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:44:15,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:44:15,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:44:15,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:44:15,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:44:15,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:44:15,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:44:15,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:44:15,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:44:15,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:44:15,462 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:44:15,462 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:44:15,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:44:15,463 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_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae3736aabcb020d122100864e41791456e1f94490735ab1a93eef5c54883fe7 [2022-11-18 18:44:15,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:44:15,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:44:15,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:44:15,840 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:44:15,842 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:44:15,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2022-11-18 18:44:15,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/data/11eec86fb/eed33c6e427840288be457b15bcc2c78/FLAGa1a72fd41 [2022-11-18 18:44:16,401 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:44:16,402 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2022-11-18 18:44:16,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/data/11eec86fb/eed33c6e427840288be457b15bcc2c78/FLAGa1a72fd41 [2022-11-18 18:44:16,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/data/11eec86fb/eed33c6e427840288be457b15bcc2c78 [2022-11-18 18:44:16,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:44:16,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:44:16,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:44:16,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:44:16,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:44:16,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:44:16" (1/1) ... [2022-11-18 18:44:16,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7360ad3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:16, skipping insertion in model container [2022-11-18 18:44:16,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:44:16" (1/1) ... [2022-11-18 18:44:16,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:44:16,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:44:17,072 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2022-11-18 18:44:17,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:44:17,091 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:44:17,109 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2022-11-18 18:44:17,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:44:17,127 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:44:17,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17 WrapperNode [2022-11-18 18:44:17,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:44:17,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:44:17,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:44:17,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:44:17,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,162 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 115 [2022-11-18 18:44:17,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:44:17,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:44:17,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:44:17,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:44:17,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,180 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:44:17,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:44:17,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:44:17,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:44:17,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (1/1) ... [2022-11-18 18:44:17,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:44:17,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:17,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:44:17,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:44:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:44:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:44:17,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:44:17,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:44:17,335 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:44:17,337 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:44:17,587 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:44:17,592 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:44:17,593 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:44:17,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:44:17 BoogieIcfgContainer [2022-11-18 18:44:17,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:44:17,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:44:17,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:44:17,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:44:17,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:44:16" (1/3) ... [2022-11-18 18:44:17,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9886367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:44:17, skipping insertion in model container [2022-11-18 18:44:17,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:44:17" (2/3) ... [2022-11-18 18:44:17,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9886367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:44:17, skipping insertion in model container [2022-11-18 18:44:17,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:44:17" (3/3) ... [2022-11-18 18:44:17,605 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007.c.i.p+lhb-reducer.c [2022-11-18 18:44:17,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:44:17,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:44:17,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:44:17,692 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;@416dd48d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:44:17,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:44:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 27 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:17,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:44:17,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:17,720 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] [2022-11-18 18:44:17,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:17,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:17,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1745867070, now seen corresponding path program 1 times [2022-11-18 18:44:17,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:17,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464219165] [2022-11-18 18:44:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:17,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:18,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:18,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464219165] [2022-11-18 18:44:18,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464219165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:18,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:18,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:44:18,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412948906] [2022-11-18 18:44:18,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:18,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:44:18,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:18,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:44:18,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:18,103 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 27 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:18,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:18,192 INFO L93 Difference]: Finished difference Result 52 states and 90 transitions. [2022-11-18 18:44:18,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:44:18,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 18:44:18,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:18,203 INFO L225 Difference]: With dead ends: 52 [2022-11-18 18:44:18,204 INFO L226 Difference]: Without dead ends: 25 [2022-11-18 18:44:18,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:18,209 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:18,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:44:18,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-18 18:44:18,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-18 18:44:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:18,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2022-11-18 18:44:18,244 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 23 [2022-11-18 18:44:18,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:18,245 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2022-11-18 18:44:18,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2022-11-18 18:44:18,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:44:18,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:18,247 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] [2022-11-18 18:44:18,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:44:18,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:18,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash -936932661, now seen corresponding path program 1 times [2022-11-18 18:44:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:18,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221906421] [2022-11-18 18:44:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:18,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:18,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221906421] [2022-11-18 18:44:18,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221906421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:18,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:18,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:44:18,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661738624] [2022-11-18 18:44:18,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:18,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:44:18,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:18,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:44:18,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:44:18,351 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:18,437 INFO L93 Difference]: Finished difference Result 44 states and 61 transitions. [2022-11-18 18:44:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:44:18,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 18:44:18,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:18,439 INFO L225 Difference]: With dead ends: 44 [2022-11-18 18:44:18,439 INFO L226 Difference]: Without dead ends: 25 [2022-11-18 18:44:18,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:44:18,441 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:18,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 32 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:44:18,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-18 18:44:18,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-18 18:44:18,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.375) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:18,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2022-11-18 18:44:18,447 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 23 [2022-11-18 18:44:18,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:18,447 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2022-11-18 18:44:18,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:18,448 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-11-18 18:44:18,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:44:18,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:18,455 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] [2022-11-18 18:44:18,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:44:18,455 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:18,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:18,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2008089875, now seen corresponding path program 1 times [2022-11-18 18:44:18,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:18,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909582145] [2022-11-18 18:44:18,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:18,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:18,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:18,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909582145] [2022-11-18 18:44:18,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909582145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:18,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:18,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:44:18,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363791428] [2022-11-18 18:44:18,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:18,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:44:18,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:18,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:44:18,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:18,580 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:18,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:18,694 INFO L93 Difference]: Finished difference Result 54 states and 76 transitions. [2022-11-18 18:44:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:44:18,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 18:44:18,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:18,695 INFO L225 Difference]: With dead ends: 54 [2022-11-18 18:44:18,695 INFO L226 Difference]: Without dead ends: 39 [2022-11-18 18:44:18,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:18,697 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:18,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:44:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-18 18:44:18,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-18 18:44:18,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:18,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-11-18 18:44:18,705 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 23 [2022-11-18 18:44:18,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:18,719 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-11-18 18:44:18,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:18,720 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2022-11-18 18:44:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:44:18,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:18,721 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] [2022-11-18 18:44:18,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:44:18,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:18,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:18,722 INFO L85 PathProgramCache]: Analyzing trace with hash 635511084, now seen corresponding path program 1 times [2022-11-18 18:44:18,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:18,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502398117] [2022-11-18 18:44:18,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:18,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:18,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:18,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502398117] [2022-11-18 18:44:18,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502398117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:18,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:18,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:44:18,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869383143] [2022-11-18 18:44:18,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:18,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:44:18,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:18,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:44:18,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:44:18,927 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:19,017 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-11-18 18:44:19,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:44:19,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 18:44:19,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:19,019 INFO L225 Difference]: With dead ends: 52 [2022-11-18 18:44:19,019 INFO L226 Difference]: Without dead ends: 35 [2022-11-18 18:44:19,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:44:19,021 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:19,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 26 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:44:19,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-18 18:44:19,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-18 18:44:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-18 18:44:19,032 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 23 [2022-11-18 18:44:19,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:19,032 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-18 18:44:19,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-18 18:44:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:44:19,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:19,033 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] [2022-11-18 18:44:19,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:44:19,034 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:19,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:19,034 INFO L85 PathProgramCache]: Analyzing trace with hash 602818777, now seen corresponding path program 1 times [2022-11-18 18:44:19,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:19,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948165605] [2022-11-18 18:44:19,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:19,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:19,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:19,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948165605] [2022-11-18 18:44:19,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948165605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:19,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:19,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:44:19,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191659683] [2022-11-18 18:44:19,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:19,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:44:19,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:19,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:44:19,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:44:19,165 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:19,276 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2022-11-18 18:44:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:44:19,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 18:44:19,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:19,280 INFO L225 Difference]: With dead ends: 44 [2022-11-18 18:44:19,280 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 18:44:19,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:44:19,290 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:19,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 32 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:44:19,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 18:44:19,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-18 18:44:19,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-11-18 18:44:19,302 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 23 [2022-11-18 18:44:19,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:19,302 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-11-18 18:44:19,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,302 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-11-18 18:44:19,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:44:19,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:19,303 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] [2022-11-18 18:44:19,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:44:19,304 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:19,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:19,304 INFO L85 PathProgramCache]: Analyzing trace with hash -218545361, now seen corresponding path program 1 times [2022-11-18 18:44:19,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:19,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080500175] [2022-11-18 18:44:19,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:19,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:19,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:19,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080500175] [2022-11-18 18:44:19,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080500175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:19,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:19,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:44:19,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127617449] [2022-11-18 18:44:19,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:19,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:44:19,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:19,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:44:19,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:19,382 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:19,429 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-11-18 18:44:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:44:19,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 18:44:19,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:19,430 INFO L225 Difference]: With dead ends: 34 [2022-11-18 18:44:19,430 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 18:44:19,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:44:19,432 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:19,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 8 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:44:19,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 18:44:19,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-18 18:44:19,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-11-18 18:44:19,437 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 23 [2022-11-18 18:44:19,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:19,438 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-18 18:44:19,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,438 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-11-18 18:44:19,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:44:19,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:19,439 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] [2022-11-18 18:44:19,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:44:19,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:19,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:19,440 INFO L85 PathProgramCache]: Analyzing trace with hash -217919750, now seen corresponding path program 1 times [2022-11-18 18:44:19,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:19,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904413745] [2022-11-18 18:44:19,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:19,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:19,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:19,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904413745] [2022-11-18 18:44:19,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904413745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:19,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:19,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:44:19,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734993361] [2022-11-18 18:44:19,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:19,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:44:19,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:19,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:44:19,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:44:19,584 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:19,673 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-11-18 18:44:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:44:19,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 18:44:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:19,675 INFO L225 Difference]: With dead ends: 36 [2022-11-18 18:44:19,675 INFO L226 Difference]: Without dead ends: 27 [2022-11-18 18:44:19,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:44:19,677 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:19,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 14 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:44:19,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-18 18:44:19,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-18 18:44:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-11-18 18:44:19,681 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2022-11-18 18:44:19,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:19,682 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-11-18 18:44:19,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-11-18 18:44:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 18:44:19,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:19,694 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] [2022-11-18 18:44:19,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:44:19,695 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:19,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash 423767145, now seen corresponding path program 1 times [2022-11-18 18:44:19,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:19,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939441667] [2022-11-18 18:44:19,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:19,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:19,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:19,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939441667] [2022-11-18 18:44:19,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939441667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:19,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:19,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 18:44:19,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621763626] [2022-11-18 18:44:19,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:19,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:44:19,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:19,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:44:19,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:44:19,885 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:19,954 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-11-18 18:44:19,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:44:19,955 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 18:44:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:19,959 INFO L225 Difference]: With dead ends: 34 [2022-11-18 18:44:19,959 INFO L226 Difference]: Without dead ends: 29 [2022-11-18 18:44:19,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:44:19,961 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:19,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 12 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:44:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-18 18:44:19,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-18 18:44:19,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-11-18 18:44:19,984 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 25 [2022-11-18 18:44:19,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:19,985 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-11-18 18:44:19,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:19,986 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-11-18 18:44:19,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 18:44:19,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:19,989 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:19,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:44:19,994 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:19,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:19,995 INFO L85 PathProgramCache]: Analyzing trace with hash -875092666, now seen corresponding path program 1 times [2022-11-18 18:44:19,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:19,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232421104] [2022-11-18 18:44:19,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:19,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:20,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:20,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232421104] [2022-11-18 18:44:20,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232421104] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:20,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810094379] [2022-11-18 18:44:20,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:20,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:20,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:20,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:20,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:44:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:20,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 18:44:20,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:20,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:44:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:20,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810094379] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:44:20,745 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:44:20,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-18 18:44:20,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681959290] [2022-11-18 18:44:20,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:44:20,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 18:44:20,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:20,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 18:44:20,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-18 18:44:20,748 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 25 states, 25 states have (on average 2.12) internal successors, (53), 25 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:20,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:20,879 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-11-18 18:44:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 18:44:20,883 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.12) internal successors, (53), 25 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-18 18:44:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:20,884 INFO L225 Difference]: With dead ends: 58 [2022-11-18 18:44:20,884 INFO L226 Difference]: Without dead ends: 53 [2022-11-18 18:44:20,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-18 18:44:20,885 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 68 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:20,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 18 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:44:20,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-18 18:44:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-18 18:44:20,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 52 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:20,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2022-11-18 18:44:20,891 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 27 [2022-11-18 18:44:20,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:20,891 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-11-18 18:44:20,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.12) internal successors, (53), 25 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:20,892 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2022-11-18 18:44:20,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-18 18:44:20,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:20,893 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:20,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:21,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 18:44:21,094 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:21,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:21,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1668395554, now seen corresponding path program 2 times [2022-11-18 18:44:21,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:21,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622794678] [2022-11-18 18:44:21,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:21,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:21,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:21,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622794678] [2022-11-18 18:44:21,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622794678] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:21,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126418585] [2022-11-18 18:44:21,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:44:21,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:21,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:21,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:21,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:44:21,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:44:21,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:44:21,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 18:44:21,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:21,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:44:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:22,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126418585] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:44:22,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:44:22,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-11-18 18:44:22,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595478381] [2022-11-18 18:44:22,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:44:22,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-18 18:44:22,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:22,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-18 18:44:22,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 18:44:22,833 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:23,065 INFO L93 Difference]: Finished difference Result 106 states and 131 transitions. [2022-11-18 18:44:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 18:44:23,066 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-11-18 18:44:23,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:23,067 INFO L225 Difference]: With dead ends: 106 [2022-11-18 18:44:23,067 INFO L226 Difference]: Without dead ends: 101 [2022-11-18 18:44:23,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 18:44:23,069 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 99 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:23,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 18 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:44:23,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-18 18:44:23,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-11-18 18:44:23,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.02) internal successors, (102), 100 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:23,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 102 transitions. [2022-11-18 18:44:23,078 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 102 transitions. Word has length 51 [2022-11-18 18:44:23,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:23,079 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 102 transitions. [2022-11-18 18:44:23,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:23,079 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 102 transitions. [2022-11-18 18:44:23,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 18:44:23,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:23,081 INFO L195 NwaCegarLoop]: trace histogram [38, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:23,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:23,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:23,287 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:23,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:23,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1723682778, now seen corresponding path program 3 times [2022-11-18 18:44:23,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:23,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176260988] [2022-11-18 18:44:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:23,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:25,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 38 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:25,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:25,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176260988] [2022-11-18 18:44:25,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176260988] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:25,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534758449] [2022-11-18 18:44:25,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:44:25,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:25,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:25,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:25,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:44:25,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 18:44:25,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:44:25,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:44:25,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 111 proven. 1 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-11-18 18:44:25,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:44:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 111 proven. 1 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-11-18 18:44:25,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534758449] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:44:25,365 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:44:25,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 4, 4] total 53 [2022-11-18 18:44:25,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484113676] [2022-11-18 18:44:25,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:44:25,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-18 18:44:25,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:25,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-18 18:44:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 18:44:25,368 INFO L87 Difference]: Start difference. First operand 101 states and 102 transitions. Second operand has 53 states, 53 states have (on average 2.4150943396226414) internal successors, (128), 53 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:25,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:25,578 INFO L93 Difference]: Finished difference Result 113 states and 118 transitions. [2022-11-18 18:44:25,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-18 18:44:25,578 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.4150943396226414) internal successors, (128), 53 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-18 18:44:25,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:25,579 INFO L225 Difference]: With dead ends: 113 [2022-11-18 18:44:25,580 INFO L226 Difference]: Without dead ends: 108 [2022-11-18 18:44:25,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 18:44:25,582 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 111 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:25,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 23 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:44:25,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-18 18:44:25,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-11-18 18:44:25,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.0186915887850467) internal successors, (109), 107 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2022-11-18 18:44:25,592 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 99 [2022-11-18 18:44:25,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:25,593 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2022-11-18 18:44:25,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.4150943396226414) internal successors, (128), 53 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:25,593 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2022-11-18 18:44:25,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 18:44:25,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:25,595 INFO L195 NwaCegarLoop]: trace histogram [42, 38, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:25,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:25,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:25,800 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:25,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:25,801 INFO L85 PathProgramCache]: Analyzing trace with hash -640925019, now seen corresponding path program 4 times [2022-11-18 18:44:25,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:25,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515729250] [2022-11-18 18:44:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 273 proven. 1482 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 18:44:27,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:27,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515729250] [2022-11-18 18:44:27,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515729250] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:27,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249339953] [2022-11-18 18:44:27,604 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 18:44:27,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:27,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:27,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:27,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:44:27,696 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 18:44:27,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:44:27,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-18 18:44:27,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:27,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 273 proven. 1482 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 18:44:27,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:44:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 273 proven. 1482 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 18:44:29,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249339953] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:44:29,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:44:29,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 53 [2022-11-18 18:44:29,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595285454] [2022-11-18 18:44:29,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:44:29,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-18 18:44:29,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:29,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-18 18:44:29,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 18:44:29,334 INFO L87 Difference]: Start difference. First operand 108 states and 109 transitions. Second operand has 53 states, 53 states have (on average 2.452830188679245) internal successors, (130), 53 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:29,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:29,512 INFO L93 Difference]: Finished difference Result 124 states and 128 transitions. [2022-11-18 18:44:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-18 18:44:29,513 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.452830188679245) internal successors, (130), 53 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-11-18 18:44:29,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:29,514 INFO L225 Difference]: With dead ends: 124 [2022-11-18 18:44:29,514 INFO L226 Difference]: Without dead ends: 114 [2022-11-18 18:44:29,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 165 SyntacticMatches, 46 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 18:44:29,516 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 33 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:29,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 15 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:44:29,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-18 18:44:29,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-11-18 18:44:29,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.0176991150442478) internal successors, (115), 113 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:29,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2022-11-18 18:44:29,526 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 107 [2022-11-18 18:44:29,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:29,526 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2022-11-18 18:44:29,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.452830188679245) internal successors, (130), 53 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2022-11-18 18:44:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-18 18:44:29,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:29,528 INFO L195 NwaCegarLoop]: trace histogram [45, 41, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:29,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:29,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 18:44:29,734 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:29,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:29,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1058630724, now seen corresponding path program 5 times [2022-11-18 18:44:29,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:29,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664179411] [2022-11-18 18:44:29,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:29,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:31,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:31,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664179411] [2022-11-18 18:44:31,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664179411] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:31,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537117865] [2022-11-18 18:44:31,911 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 18:44:31,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:31,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:31,919 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:31,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:44:32,011 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 46 check-sat command(s) [2022-11-18 18:44:32,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:44:32,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 18:44:32,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1035 proven. 484 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-11-18 18:44:33,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:44:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1035 proven. 484 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-11-18 18:44:34,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537117865] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:44:34,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:44:34,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 25, 25] total 98 [2022-11-18 18:44:34,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472151529] [2022-11-18 18:44:34,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:44:34,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-11-18 18:44:34,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:34,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-11-18 18:44:34,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2022-11-18 18:44:34,806 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand has 98 states, 98 states have (on average 2.2653061224489797) internal successors, (222), 98 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:35,323 INFO L93 Difference]: Finished difference Result 201 states and 243 transitions. [2022-11-18 18:44:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-11-18 18:44:35,326 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 2.2653061224489797) internal successors, (222), 98 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-11-18 18:44:35,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:35,327 INFO L225 Difference]: With dead ends: 201 [2022-11-18 18:44:35,327 INFO L226 Difference]: Without dead ends: 198 [2022-11-18 18:44:35,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2022-11-18 18:44:35,331 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 155 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:35,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 17 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 18:44:35,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-18 18:44:35,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-18 18:44:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.0101522842639594) internal successors, (199), 197 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:35,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 199 transitions. [2022-11-18 18:44:35,344 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 199 transitions. Word has length 113 [2022-11-18 18:44:35,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:35,344 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 199 transitions. [2022-11-18 18:44:35,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.2653061224489797) internal successors, (222), 98 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:35,345 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 199 transitions. [2022-11-18 18:44:35,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-18 18:44:35,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:35,347 INFO L195 NwaCegarLoop]: trace histogram [87, 46, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:35,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:35,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 18:44:35,556 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:35,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:35,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1561171392, now seen corresponding path program 6 times [2022-11-18 18:44:35,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:35,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514587693] [2022-11-18 18:44:35,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:35,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:41,787 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 0 proven. 7569 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:44:41,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:41,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514587693] [2022-11-18 18:44:41,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514587693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:41,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536483079] [2022-11-18 18:44:41,788 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 18:44:41,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:41,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:41,789 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:41,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:44:41,979 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 87 check-sat command(s) [2022-11-18 18:44:41,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:44:41,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-18 18:44:41,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 3813 proven. 2116 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2022-11-18 18:44:42,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:44:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 3813 proven. 2116 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2022-11-18 18:44:45,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536483079] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:44:45,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:44:45,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 49, 49] total 102 [2022-11-18 18:44:45,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027513419] [2022-11-18 18:44:45,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:44:45,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-11-18 18:44:45,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:45,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-11-18 18:44:45,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-11-18 18:44:45,427 INFO L87 Difference]: Start difference. First operand 198 states and 199 transitions. Second operand has 102 states, 102 states have (on average 2.2254901960784315) internal successors, (227), 102 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:46,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:46,000 INFO L93 Difference]: Finished difference Result 209 states and 213 transitions. [2022-11-18 18:44:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-11-18 18:44:46,001 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 2.2254901960784315) internal successors, (227), 102 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-11-18 18:44:46,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:46,003 INFO L225 Difference]: With dead ends: 209 [2022-11-18 18:44:46,003 INFO L226 Difference]: Without dead ends: 206 [2022-11-18 18:44:46,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 347 SyntacticMatches, 44 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1078 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-11-18 18:44:46,005 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 138 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:46,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 23 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 18:44:46,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-18 18:44:46,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-11-18 18:44:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.0097560975609756) internal successors, (207), 205 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:46,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 207 transitions. [2022-11-18 18:44:46,015 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 207 transitions. Word has length 197 [2022-11-18 18:44:46,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:46,016 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 207 transitions. [2022-11-18 18:44:46,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.2254901960784315) internal successors, (227), 102 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 207 transitions. [2022-11-18 18:44:46,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-18 18:44:46,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:46,019 INFO L195 NwaCegarLoop]: trace histogram [91, 50, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:46,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:46,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 18:44:46,223 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:46,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:46,224 INFO L85 PathProgramCache]: Analyzing trace with hash 782272296, now seen corresponding path program 7 times [2022-11-18 18:44:46,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:46,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541277160] [2022-11-18 18:44:46,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:46,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 6559 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-11-18 18:44:49,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:49,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541277160] [2022-11-18 18:44:49,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541277160] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:44:49,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978777298] [2022-11-18 18:44:49,016 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 18:44:49,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:49,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:44:49,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:44:49,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 18:44:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:49,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 108 conjunts are in the unsatisfiable core [2022-11-18 18:44:49,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:44:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 6559 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-11-18 18:44:50,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:44:50,936 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 6559 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-11-18 18:44:50,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978777298] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:44:50,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:44:50,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 55 [2022-11-18 18:44:50,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715094978] [2022-11-18 18:44:50,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:44:50,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-18 18:44:50,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:50,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-18 18:44:50,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=2862, Unknown=0, NotChecked=0, Total=2970 [2022-11-18 18:44:50,941 INFO L87 Difference]: Start difference. First operand 206 states and 207 transitions. Second operand has 55 states, 55 states have (on average 2.290909090909091) internal successors, (126), 55 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:52,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:52,357 INFO L93 Difference]: Finished difference Result 212 states and 213 transitions. [2022-11-18 18:44:52,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-18 18:44:52,357 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.290909090909091) internal successors, (126), 55 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2022-11-18 18:44:52,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:52,359 INFO L225 Difference]: With dead ends: 212 [2022-11-18 18:44:52,359 INFO L226 Difference]: Without dead ends: 209 [2022-11-18 18:44:52,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 405 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=113, Invalid=2967, Unknown=0, NotChecked=0, Total=3080 [2022-11-18 18:44:52,363 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 2 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:52,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3871 Invalid, 2812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 18:44:52,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-18 18:44:52,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 208. [2022-11-18 18:44:52,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.0096618357487923) internal successors, (209), 207 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:52,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 209 transitions. [2022-11-18 18:44:52,377 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 209 transitions. Word has length 205 [2022-11-18 18:44:52,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:52,377 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 209 transitions. [2022-11-18 18:44:52,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 2.290909090909091) internal successors, (126), 55 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:52,378 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 209 transitions. [2022-11-18 18:44:52,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-18 18:44:52,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:44:52,380 INFO L195 NwaCegarLoop]: trace histogram [92, 51, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:52,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:44:52,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:44:52,586 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:44:52,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:44:52,587 INFO L85 PathProgramCache]: Analyzing trace with hash 136861218, now seen corresponding path program 8 times [2022-11-18 18:44:52,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:44:52,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795062848] [2022-11-18 18:44:52,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:44:52,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:44:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:44:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 6742 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-11-18 18:44:54,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:44:54,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795062848] [2022-11-18 18:44:54,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795062848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:44:54,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:44:54,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-11-18 18:44:54,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252485116] [2022-11-18 18:44:54,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:44:54,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-18 18:44:54,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:44:54,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-18 18:44:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2022-11-18 18:44:54,822 INFO L87 Difference]: Start difference. First operand 208 states and 209 transitions. Second operand has 52 states, 52 states have (on average 2.423076923076923) internal successors, (126), 52 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:55,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:44:55,220 INFO L93 Difference]: Finished difference Result 208 states and 209 transitions. [2022-11-18 18:44:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-18 18:44:55,221 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.423076923076923) internal successors, (126), 52 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2022-11-18 18:44:55,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:44:55,221 INFO L225 Difference]: With dead ends: 208 [2022-11-18 18:44:55,221 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 18:44:55,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2022-11-18 18:44:55,223 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:44:55,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 18:44:55,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 18:44:55,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 18:44:55,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:55,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 18:44:55,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2022-11-18 18:44:55,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:44:55,224 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:44:55,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.423076923076923) internal successors, (126), 52 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:44:55,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:44:55,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 18:44:55,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:44:55,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:44:55,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 18:44:57,166 INFO L895 garLoopResultBuilder]: At program point L159(lines 43 160) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__x~0#1| 5) (<= |ULTIMATE.start_main_~main__y~0#1| 50) (<= 50 |ULTIMATE.start_main_~main__y~0#1|)) [2022-11-18 18:44:57,166 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 208) no Hoare annotation was computed. [2022-11-18 18:44:57,167 INFO L895 garLoopResultBuilder]: At program point L135(lines 55 136) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__y~0#1| 50) (<= 50 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 7)) [2022-11-18 18:44:57,167 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 103) no Hoare annotation was computed. [2022-11-18 18:44:57,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 18:44:57,167 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 124) no Hoare annotation was computed. [2022-11-18 18:44:57,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 18:44:57,169 INFO L895 garLoopResultBuilder]: At program point L111(lines 67 112) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~main__x~0#1| 86) (<= 86 |ULTIMATE.start_main_~main__x~0#1|) (<= 86 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 86)) (and (<= 70 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 70) (<= |ULTIMATE.start_main_~main__x~0#1| 70) (<= 70 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= 94 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 94) (<= 94 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 94)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 75) (<= 75 |ULTIMATE.start_main_~main__x~0#1|) (<= 75 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 75)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 55) (<= |ULTIMATE.start_main_~main__x~0#1| 55) (<= 55 |ULTIMATE.start_main_~main__y~0#1|) (<= 55 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 80) (<= 80 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 80) (<= 80 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= 64 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 64) (<= 64 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 64)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 58) (<= |ULTIMATE.start_main_~main__y~0#1| 58) (<= 58 |ULTIMATE.start_main_~main__x~0#1|) (<= 58 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= 99 |ULTIMATE.start_main_~main__y~0#1|) (<= 99 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 99) (< |ULTIMATE.start_main_~main__x~0#1| 100)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 81) (<= |ULTIMATE.start_main_~main__x~0#1| 81) (<= 81 |ULTIMATE.start_main_~main__x~0#1|) (<= 81 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 50) (<= |ULTIMATE.start_main_~main__y~0#1| 50) (<= 50 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 74) (<= 74 |ULTIMATE.start_main_~main__x~0#1|) (<= 74 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 74)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 62) (<= 62 |ULTIMATE.start_main_~main__y~0#1|) (<= 62 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 62)) (and (<= 92 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 92) (<= 92 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 92)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 90) (<= |ULTIMATE.start_main_~main__y~0#1| 90) (<= 90 |ULTIMATE.start_main_~main__y~0#1|) (<= 90 |ULTIMATE.start_main_~main__x~0#1|)) (and (< 99 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 100) (<= 100 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= 71 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 71) (<= 71 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 71)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 89) (<= 89 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 89) (<= 89 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 82) (<= 82 |ULTIMATE.start_main_~main__y~0#1|) (<= 82 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 82)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 57) (<= |ULTIMATE.start_main_~main__y~0#1| 57) (<= 57 |ULTIMATE.start_main_~main__x~0#1|) (<= 57 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= 77 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 77) (<= 77 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 77)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 93) (<= 93 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 93) (<= 93 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 69) (<= 69 |ULTIMATE.start_main_~main__y~0#1|) (<= 69 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 69)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 68) (<= 68 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 68) (<= 68 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= 72 |ULTIMATE.start_main_~main__y~0#1|) (<= 72 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 72) (<= |ULTIMATE.start_main_~main__x~0#1| 72)) (and (<= 56 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 56) (<= 56 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 56)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 73) (<= 73 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 73) (<= 73 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 52) (<= 52 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 52) (<= 52 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= 88 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 88) (<= 88 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 88)) (and (<= 65 |ULTIMATE.start_main_~main__y~0#1|) (<= 65 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 65) (<= |ULTIMATE.start_main_~main__x~0#1| 65)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 53) (<= 53 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 53) (<= 53 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 59) (<= 59 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 59) (<= 59 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= 84 |ULTIMATE.start_main_~main__y~0#1|) (<= 84 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 84) (<= |ULTIMATE.start_main_~main__y~0#1| 84)) (and (<= 67 |ULTIMATE.start_main_~main__y~0#1|) (<= 67 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 67) (<= |ULTIMATE.start_main_~main__y~0#1| 67)) (and (<= 51 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 51) (<= 51 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 51)) (and (<= 83 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 83) (<= |ULTIMATE.start_main_~main__x~0#1| 83) (<= 83 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= 85 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 85) (<= 85 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 85)) (and (< |ULTIMATE.start_main_~main__x~0#1| 99) (<= 98 |ULTIMATE.start_main_~main__x~0#1|) (<= 98 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 98)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 97) (< |ULTIMATE.start_main_~main__x~0#1| 98) (<= 97 |ULTIMATE.start_main_~main__y~0#1|) (<= 97 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= 79 |ULTIMATE.start_main_~main__x~0#1|) (<= 79 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 79) (<= |ULTIMATE.start_main_~main__y~0#1| 79)) (and (<= 63 |ULTIMATE.start_main_~main__y~0#1|) (<= 63 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 63) (<= |ULTIMATE.start_main_~main__y~0#1| 63)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 60) (<= 60 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 60) (<= 60 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 66) (<= |ULTIMATE.start_main_~main__y~0#1| 66) (<= 66 |ULTIMATE.start_main_~main__y~0#1|) (<= 66 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= 61 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 61) (<= 61 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 61)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 78) (<= 78 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 78) (<= 78 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 87) (<= 87 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 87) (<= 87 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= 91 |ULTIMATE.start_main_~main__x~0#1|) (<= 91 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 91) (<= |ULTIMATE.start_main_~main__y~0#1| 91)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 96) (<= |ULTIMATE.start_main_~main__y~0#1| 96) (<= 96 |ULTIMATE.start_main_~main__y~0#1|) (<= 96 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 54) (<= |ULTIMATE.start_main_~main__x~0#1| 54) (<= 54 |ULTIMATE.start_main_~main__y~0#1|) (<= 54 |ULTIMATE.start_main_~main__x~0#1|)) (and (<= |ULTIMATE.start_main_~main__y~0#1| 76) (<= 76 |ULTIMATE.start_main_~main__x~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 76) (<= 76 |ULTIMATE.start_main_~main__y~0#1|)) (and (<= |ULTIMATE.start_main_~main__x~0#1| 95) (<= 95 |ULTIMATE.start_main_~main__x~0#1|) (<= 95 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__y~0#1| 95))) [2022-11-18 18:44:57,169 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 172) no Hoare annotation was computed. [2022-11-18 18:44:57,169 INFO L895 garLoopResultBuilder]: At program point L195(lines 25 196) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__x~0#1| 2) (<= |ULTIMATE.start_main_~main__y~0#1| 50) (<= 50 |ULTIMATE.start_main_~main__y~0#1|)) [2022-11-18 18:44:57,170 INFO L899 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2022-11-18 18:44:57,170 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 136) no Hoare annotation was computed. [2022-11-18 18:44:57,170 INFO L902 garLoopResultBuilder]: At program point L212(lines 13 214) the Hoare annotation is: true [2022-11-18 18:44:57,170 INFO L895 garLoopResultBuilder]: At program point L171(lines 37 172) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__y~0#1| 50) (<= |ULTIMATE.start_main_~main__x~0#1| 4) (<= 50 |ULTIMATE.start_main_~main__y~0#1|)) [2022-11-18 18:44:57,170 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 184) no Hoare annotation was computed. [2022-11-18 18:44:57,170 INFO L895 garLoopResultBuilder]: At program point L147(lines 49 148) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__y~0#1| 50) (<= 50 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 6)) [2022-11-18 18:44:57,171 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 18:44:57,171 INFO L895 garLoopResultBuilder]: At program point L123(lines 61 124) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__x~0#1| 8) (<= |ULTIMATE.start_main_~main__y~0#1| 50) (<= 50 |ULTIMATE.start_main_~main__y~0#1|)) [2022-11-18 18:44:57,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2022-11-18 18:44:57,171 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 148) no Hoare annotation was computed. [2022-11-18 18:44:57,171 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 85) no Hoare annotation was computed. [2022-11-18 18:44:57,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 18:44:57,172 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 196) no Hoare annotation was computed. [2022-11-18 18:44:57,172 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 213) no Hoare annotation was computed. [2022-11-18 18:44:57,172 INFO L895 garLoopResultBuilder]: At program point L207(lines 19 208) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__y~0#1| 50) (<= 50 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 1)) [2022-11-18 18:44:57,172 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 112) no Hoare annotation was computed. [2022-11-18 18:44:57,172 INFO L895 garLoopResultBuilder]: At program point L183(lines 31 184) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__y~0#1| 50) (<= 50 |ULTIMATE.start_main_~main__y~0#1|) (<= |ULTIMATE.start_main_~main__x~0#1| 3)) [2022-11-18 18:44:57,172 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 160) no Hoare annotation was computed. [2022-11-18 18:44:57,176 INFO L444 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:44:57,178 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:44:57,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:44:57 BoogieIcfgContainer [2022-11-18 18:44:57,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:44:57,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:44:57,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:44:57,217 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:44:57,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:44:17" (3/4) ... [2022-11-18 18:44:57,221 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:44:57,231 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-18 18:44:57,231 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 18:44:57,232 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 18:44:57,232 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:44:57,277 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:44:57,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:44:57,278 INFO L158 Benchmark]: Toolchain (without parser) took 40498.69ms. Allocated memory was 130.0MB in the beginning and 339.7MB in the end (delta: 209.7MB). Free memory was 96.7MB in the beginning and 306.7MB in the end (delta: -210.0MB). Peak memory consumption was 137.2kB. Max. memory is 16.1GB. [2022-11-18 18:44:57,278 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 49.6MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:44:57,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.36ms. Allocated memory is still 130.0MB. Free memory was 96.4MB in the beginning and 105.0MB in the end (delta: -8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 18:44:57,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.97ms. Allocated memory is still 130.0MB. Free memory was 105.0MB in the beginning and 103.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:44:57,279 INFO L158 Benchmark]: Boogie Preprocessor took 19.86ms. Allocated memory is still 130.0MB. Free memory was 103.4MB in the beginning and 102.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:44:57,279 INFO L158 Benchmark]: RCFGBuilder took 411.59ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 89.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 18:44:57,280 INFO L158 Benchmark]: TraceAbstraction took 39619.17ms. Allocated memory was 130.0MB in the beginning and 339.7MB in the end (delta: 209.7MB). Free memory was 89.5MB in the beginning and 309.8MB in the end (delta: -220.3MB). Peak memory consumption was 189.8MB. Max. memory is 16.1GB. [2022-11-18 18:44:57,280 INFO L158 Benchmark]: Witness Printer took 60.53ms. Allocated memory is still 339.7MB. Free memory was 309.8MB in the beginning and 306.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:44:57,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 49.6MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.36ms. Allocated memory is still 130.0MB. Free memory was 96.4MB in the beginning and 105.0MB in the end (delta: -8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.97ms. Allocated memory is still 130.0MB. Free memory was 105.0MB in the beginning and 103.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.86ms. Allocated memory is still 130.0MB. Free memory was 103.4MB in the beginning and 102.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.59ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 89.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 39619.17ms. Allocated memory was 130.0MB in the beginning and 339.7MB in the end (delta: 209.7MB). Free memory was 89.5MB in the beginning and 309.8MB in the end (delta: -220.3MB). Peak memory consumption was 189.8MB. Max. memory is 16.1GB. * Witness Printer took 60.53ms. Allocated memory is still 339.7MB. Free memory was 309.8MB in the beginning and 306.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 96]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.5s, OverallIterations: 16, TraceHistogramMax: 92, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.1s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 674 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 674 mSDsluCounter, 4206 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3925 mSDsCounter, 935 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4778 IncrementalHoareTripleChecker+Invalid, 5713 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 935 mSolverCounterUnsat, 281 mSDtfsCounter, 4778 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2034 GetRequests, 1434 SyntacticMatches, 94 SemanticMatches, 506 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2521 ImplicationChecksByTransitivity, 19.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=15, InterpolantAutomatonStates: 533, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 111 NumberOfFragments, 739 HoareAnnotationTreeSize, 10 FomulaSimplifications, 477 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 10 FomulaSimplificationsInter, 410 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 29.7s InterpolantComputationTime, 1991 NumberOfCodeBlocks, 1919 NumberOfCodeBlocksAsserted, 159 NumberOfCheckSat, 2760 ConstructedInterpolants, 0 QuantifiedInterpolants, 9058 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1885 ConjunctsInSsa, 271 ConjunctsInUnsatCore, 30 InterpolantComputations, 9 PerfectInterpolantSequences, 31437/72314 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (main__y <= 50 && 50 <= main__y) && main__x <= 3 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((main__x <= 86 && 86 <= main__x) && 86 <= main__y) && main__y <= 86) || (((70 <= main__x && main__y <= 70) && main__x <= 70) && 70 <= main__y)) || (((94 <= main__y && main__y <= 94) && 94 <= main__x) && main__x <= 94)) || (((main__x <= 75 && 75 <= main__x) && 75 <= main__y) && main__y <= 75)) || (((main__y <= 55 && main__x <= 55) && 55 <= main__y) && 55 <= main__x)) || (((main__x <= 80 && 80 <= main__x) && main__y <= 80) && 80 <= main__y)) || (((64 <= main__x && main__y <= 64) && 64 <= main__y) && main__x <= 64)) || (((main__x <= 58 && main__y <= 58) && 58 <= main__x) && 58 <= main__y)) || (((99 <= main__y && 99 <= main__x) && main__y <= 99) && main__x < 100)) || (((main__y <= 81 && main__x <= 81) && 81 <= main__x) && 81 <= main__y)) || ((main__x <= 50 && main__y <= 50) && 50 <= main__y)) || (((main__y <= 74 && 74 <= main__x) && 74 <= main__y) && main__x <= 74)) || (((main__y <= 62 && 62 <= main__y) && 62 <= main__x) && main__x <= 62)) || (((92 <= main__y && main__x <= 92) && 92 <= main__x) && main__y <= 92)) || (((main__x <= 90 && main__y <= 90) && 90 <= main__y) && 90 <= main__x)) || ((99 < main__y && main__y <= 100) && 100 <= main__x)) || (((71 <= main__x && main__y <= 71) && 71 <= main__y) && main__x <= 71)) || (((main__y <= 89 && 89 <= main__y) && main__x <= 89) && 89 <= main__x)) || (((main__y <= 82 && 82 <= main__y) && 82 <= main__x) && main__x <= 82)) || (((main__x <= 57 && main__y <= 57) && 57 <= main__x) && 57 <= main__y)) || (((77 <= main__x && main__y <= 77) && 77 <= main__y) && main__x <= 77)) || (((main__y <= 93 && 93 <= main__x) && main__x <= 93) && 93 <= main__y)) || (((main__x <= 69 && 69 <= main__y) && 69 <= main__x) && main__y <= 69)) || (((main__y <= 68 && 68 <= main__y) && main__x <= 68) && 68 <= main__x)) || (((72 <= main__y && 72 <= main__x) && main__y <= 72) && main__x <= 72)) || (((56 <= main__x && main__x <= 56) && 56 <= main__y) && main__y <= 56)) || (((main__x <= 73 && 73 <= main__y) && main__y <= 73) && 73 <= main__x)) || (((main__x <= 52 && 52 <= main__y) && main__y <= 52) && 52 <= main__x)) || (((88 <= main__x && main__x <= 88) && 88 <= main__y) && main__y <= 88)) || (((65 <= main__y && 65 <= main__x) && main__y <= 65) && main__x <= 65)) || (((main__y <= 53 && 53 <= main__x) && main__x <= 53) && 53 <= main__y)) || (((main__x <= 59 && 59 <= main__y) && main__y <= 59) && 59 <= main__x)) || (((84 <= main__y && 84 <= main__x) && main__x <= 84) && main__y <= 84)) || (((67 <= main__y && 67 <= main__x) && main__x <= 67) && main__y <= 67)) || (((51 <= main__y && main__y <= 51) && 51 <= main__x) && main__x <= 51)) || (((83 <= main__y && main__y <= 83) && main__x <= 83) && 83 <= main__x)) || (((85 <= main__y && main__x <= 85) && 85 <= main__x) && main__y <= 85)) || (((main__x < 99 && 98 <= main__x) && 98 <= main__y) && main__y <= 98)) || (((main__y <= 97 && main__x < 98) && 97 <= main__y) && 97 <= main__x)) || (((79 <= main__x && 79 <= main__y) && main__x <= 79) && main__y <= 79)) || (((63 <= main__y && 63 <= main__x) && main__x <= 63) && main__y <= 63)) || (((main__x <= 60 && 60 <= main__y) && main__y <= 60) && 60 <= main__x)) || (((main__x <= 66 && main__y <= 66) && 66 <= main__y) && 66 <= main__x)) || (((61 <= main__y && main__x <= 61) && 61 <= main__x) && main__y <= 61)) || (((main__x <= 78 && 78 <= main__x) && main__y <= 78) && 78 <= main__y)) || (((main__x <= 87 && 87 <= main__y) && main__y <= 87) && 87 <= main__x)) || (((91 <= main__x && 91 <= main__y) && main__x <= 91) && main__y <= 91)) || (((main__x <= 96 && main__y <= 96) && 96 <= main__y) && 96 <= main__x)) || (((main__y <= 54 && main__x <= 54) && 54 <= main__y) && 54 <= main__x)) || (((main__y <= 76 && 76 <= main__x) && main__x <= 76) && 76 <= main__y)) || (((main__x <= 95 && 95 <= main__x) && 95 <= main__y) && main__y <= 95) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: (main__y <= 50 && 50 <= main__y) && main__x <= 7 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (main__y <= 50 && 50 <= main__y) && main__x <= 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (main__x <= 2 && main__y <= 50) && 50 <= main__y - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: (main__x <= 8 && main__y <= 50) && 50 <= main__y - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (main__x <= 5 && main__y <= 50) && 50 <= main__y - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (main__y <= 50 && 50 <= main__y) && main__x <= 6 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (main__y <= 50 && main__x <= 4) && 50 <= main__y RESULT: Ultimate proved your program to be correct! [2022-11-18 18:44:57,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c73123e-425a-4f7f-8d26-766187c2c9f6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE