./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 2329fc70 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_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/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_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 13:09:21,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:09:21,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:09:21,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:09:21,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:09:21,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:09:21,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:09:21,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:09:21,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:09:21,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:09:21,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:09:21,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:09:21,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:09:21,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:09:21,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:09:21,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:09:21,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:09:21,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:09:21,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:09:21,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:09:21,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:09:21,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:09:21,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:09:21,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:09:21,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:09:21,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:09:21,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:09:21,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:09:21,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:09:21,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:09:21,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:09:21,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:09:21,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:09:21,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:09:21,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:09:21,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:09:21,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:09:21,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:09:21,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:09:21,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:09:21,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:09:21,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:09:21,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:09:21,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:09:21,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:09:21,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:09:21,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:09:21,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:09:21,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:09:21,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:09:21,399 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:09:21,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:09:21,399 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:09:21,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:09:21,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:09:21,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:09:21,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:09:21,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:09:21,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:09:21,401 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:09:21,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:09:21,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:09:21,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:09:21,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:09:21,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:09:21,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:09:21,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:09:21,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:09:21,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:09:21,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:09:21,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:09:21,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:09:21,403 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:09:21,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:09:21,403 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:09:21,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:09:21,403 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:09:21,403 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ae3736aabcb020d122100864e41791456e1f94490735ab1a93eef5c54883fe7 [2022-12-13 13:09:21,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:09:21,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:09:21,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:09:21,606 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:09:21,606 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:09:21,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2022-12-13 13:09:24,197 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:09:24,362 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:09:24,362 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2022-12-13 13:09:24,367 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/data/133d4d56a/4ba01282e1f24fcbbe6c8c67e71e03f3/FLAG5fcacf905 [2022-12-13 13:09:24,377 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/data/133d4d56a/4ba01282e1f24fcbbe6c8c67e71e03f3 [2022-12-13 13:09:24,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:09:24,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:09:24,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:09:24,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:09:24,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:09:24,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0c20ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24, skipping insertion in model container [2022-12-13 13:09:24,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:09:24,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:09:24,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2022-12-13 13:09:24,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:09:24,572 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:09:24,584 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2022-12-13 13:09:24,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:09:24,598 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:09:24,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24 WrapperNode [2022-12-13 13:09:24,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:09:24,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:09:24,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:09:24,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:09:24,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,622 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 115 [2022-12-13 13:09:24,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:09:24,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:09:24,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:09:24,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:09:24,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,636 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:09:24,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:09:24,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:09:24,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:09:24,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (1/1) ... [2022-12-13 13:09:24,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:09:24,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:09:24,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:09:24,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:09:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:09:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:09:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:09:24,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:09:24,748 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:09:24,749 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:09:24,872 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:09:24,876 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:09:24,876 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:09:24,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:09:24 BoogieIcfgContainer [2022-12-13 13:09:24,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:09:24,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:09:24,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:09:24,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:09:24,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:09:24" (1/3) ... [2022-12-13 13:09:24,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38653783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:09:24, skipping insertion in model container [2022-12-13 13:09:24,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:09:24" (2/3) ... [2022-12-13 13:09:24,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38653783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:09:24, skipping insertion in model container [2022-12-13 13:09:24,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:09:24" (3/3) ... [2022-12-13 13:09:24,884 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007.c.i.p+lhb-reducer.c [2022-12-13 13:09:24,898 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:09:24,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:09:24,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:09:24,939 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;@1ab48b00, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:09:24,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:09:24,943 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) [2022-12-13 13:09:24,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 13:09:24,948 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:24,948 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] [2022-12-13 13:09:24,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:24,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:24,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1745867070, now seen corresponding path program 1 times [2022-12-13 13:09:24,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:24,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421304392] [2022-12-13 13:09:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:24,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:25,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:25,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421304392] [2022-12-13 13:09:25,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421304392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:09:25,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:09:25,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:09:25,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611338185] [2022-12-13 13:09:25,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:09:25,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:09:25,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:25,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:09:25,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:09:25,172 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) [2022-12-13 13:09:25,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:25,246 INFO L93 Difference]: Finished difference Result 52 states and 90 transitions. [2022-12-13 13:09:25,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:09:25,248 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 [2022-12-13 13:09:25,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:25,256 INFO L225 Difference]: With dead ends: 52 [2022-12-13 13:09:25,257 INFO L226 Difference]: Without dead ends: 25 [2022-12-13 13:09:25,259 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 [2022-12-13 13:09:25,263 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-12-13 13:09:25,264 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] [2022-12-13 13:09:25,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-13 13:09:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-13 13:09:25,289 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) [2022-12-13 13:09:25,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2022-12-13 13:09:25,290 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 23 [2022-12-13 13:09:25,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:25,290 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2022-12-13 13:09:25,290 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) [2022-12-13 13:09:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2022-12-13 13:09:25,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 13:09:25,291 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:25,291 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] [2022-12-13 13:09:25,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:09:25,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:25,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:25,292 INFO L85 PathProgramCache]: Analyzing trace with hash -936932661, now seen corresponding path program 1 times [2022-12-13 13:09:25,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:25,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028080743] [2022-12-13 13:09:25,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:25,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:25,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:25,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028080743] [2022-12-13 13:09:25,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028080743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:09:25,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:09:25,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:09:25,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738462331] [2022-12-13 13:09:25,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:09:25,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:09:25,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:25,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:09:25,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:09:25,375 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) [2022-12-13 13:09:25,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:25,417 INFO L93 Difference]: Finished difference Result 44 states and 61 transitions. [2022-12-13 13:09:25,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:09:25,417 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 [2022-12-13 13:09:25,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:25,418 INFO L225 Difference]: With dead ends: 44 [2022-12-13 13:09:25,418 INFO L226 Difference]: Without dead ends: 25 [2022-12-13 13:09:25,419 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 [2022-12-13 13:09:25,420 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:25,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:09:25,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-13 13:09:25,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-13 13:09:25,423 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) [2022-12-13 13:09:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2022-12-13 13:09:25,424 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 23 [2022-12-13 13:09:25,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:25,424 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2022-12-13 13:09:25,424 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) [2022-12-13 13:09:25,424 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-12-13 13:09:25,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 13:09:25,425 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:25,425 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] [2022-12-13 13:09:25,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:09:25,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:25,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:25,426 INFO L85 PathProgramCache]: Analyzing trace with hash -2008089875, now seen corresponding path program 1 times [2022-12-13 13:09:25,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:25,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303551402] [2022-12-13 13:09:25,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:25,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:25,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:25,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:25,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303551402] [2022-12-13 13:09:25,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303551402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:09:25,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:09:25,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:09:25,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679591089] [2022-12-13 13:09:25,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:09:25,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:09:25,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:25,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:09:25,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:09:25,468 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) [2022-12-13 13:09:25,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:25,527 INFO L93 Difference]: Finished difference Result 54 states and 76 transitions. [2022-12-13 13:09:25,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:09:25,528 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 [2022-12-13 13:09:25,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:25,529 INFO L225 Difference]: With dead ends: 54 [2022-12-13 13:09:25,529 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 13:09:25,529 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 [2022-12-13 13:09:25,531 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:25,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:09:25,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 13:09:25,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-13 13:09:25,535 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) [2022-12-13 13:09:25,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2022-12-13 13:09:25,536 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 23 [2022-12-13 13:09:25,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:25,536 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-12-13 13:09:25,536 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) [2022-12-13 13:09:25,537 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2022-12-13 13:09:25,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 13:09:25,537 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:25,538 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] [2022-12-13 13:09:25,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:09:25,538 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:25,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:25,539 INFO L85 PathProgramCache]: Analyzing trace with hash 635511084, now seen corresponding path program 1 times [2022-12-13 13:09:25,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:25,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759006795] [2022-12-13 13:09:25,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:25,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:25,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:25,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759006795] [2022-12-13 13:09:25,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759006795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:09:25,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:09:25,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:09:25,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374167368] [2022-12-13 13:09:25,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:09:25,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:09:25,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:25,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:09:25,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:09:25,610 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) [2022-12-13 13:09:25,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:25,643 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-12-13 13:09:25,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:09:25,643 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 [2022-12-13 13:09:25,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:25,644 INFO L225 Difference]: With dead ends: 52 [2022-12-13 13:09:25,644 INFO L226 Difference]: Without dead ends: 35 [2022-12-13 13:09:25,644 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 [2022-12-13 13:09:25,645 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:25,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:09:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-13 13:09:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-12-13 13:09:25,649 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) [2022-12-13 13:09:25,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-12-13 13:09:25,649 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 23 [2022-12-13 13:09:25,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:25,649 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-12-13 13:09:25,650 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) [2022-12-13 13:09:25,650 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-12-13 13:09:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 13:09:25,651 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:25,651 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] [2022-12-13 13:09:25,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:09:25,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:25,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:25,652 INFO L85 PathProgramCache]: Analyzing trace with hash 602818777, now seen corresponding path program 1 times [2022-12-13 13:09:25,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:25,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825398642] [2022-12-13 13:09:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:25,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:25,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:25,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825398642] [2022-12-13 13:09:25,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825398642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:09:25,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:09:25,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:09:25,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407652515] [2022-12-13 13:09:25,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:09:25,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:09:25,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:25,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:09:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:09:25,725 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) [2022-12-13 13:09:25,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:25,772 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2022-12-13 13:09:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:09:25,772 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 [2022-12-13 13:09:25,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:25,773 INFO L225 Difference]: With dead ends: 44 [2022-12-13 13:09:25,773 INFO L226 Difference]: Without dead ends: 31 [2022-12-13 13:09:25,773 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 [2022-12-13 13:09:25,774 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:25,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:09:25,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-13 13:09:25,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-13 13:09:25,777 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) [2022-12-13 13:09:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-12-13 13:09:25,778 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 23 [2022-12-13 13:09:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:25,778 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-12-13 13:09:25,778 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) [2022-12-13 13:09:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-12-13 13:09:25,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 13:09:25,779 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:25,779 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] [2022-12-13 13:09:25,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:09:25,779 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash -218545361, now seen corresponding path program 1 times [2022-12-13 13:09:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:25,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441202906] [2022-12-13 13:09:25,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:25,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:25,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:25,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:25,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441202906] [2022-12-13 13:09:25,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441202906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:09:25,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:09:25,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:09:25,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813688762] [2022-12-13 13:09:25,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:09:25,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:09:25,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:25,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:09:25,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:09:25,806 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) [2022-12-13 13:09:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:25,838 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-12-13 13:09:25,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:09:25,838 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 [2022-12-13 13:09:25,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:25,839 INFO L225 Difference]: With dead ends: 34 [2022-12-13 13:09:25,839 INFO L226 Difference]: Without dead ends: 31 [2022-12-13 13:09:25,839 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 [2022-12-13 13:09:25,840 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 [2022-12-13 13:09:25,840 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] [2022-12-13 13:09:25,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-13 13:09:25,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-13 13:09:25,843 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) [2022-12-13 13:09:25,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-12-13 13:09:25,843 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 23 [2022-12-13 13:09:25,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:25,844 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-12-13 13:09:25,844 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) [2022-12-13 13:09:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-12-13 13:09:25,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 13:09:25,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:25,844 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] [2022-12-13 13:09:25,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:09:25,845 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:25,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:25,845 INFO L85 PathProgramCache]: Analyzing trace with hash -217919750, now seen corresponding path program 1 times [2022-12-13 13:09:25,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:25,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213154001] [2022-12-13 13:09:25,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:25,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:25,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:25,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:25,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213154001] [2022-12-13 13:09:25,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213154001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:09:25,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:09:25,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 13:09:25,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349724660] [2022-12-13 13:09:25,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:09:25,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 13:09:25,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:25,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 13:09:25,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:09:25,951 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) [2022-12-13 13:09:25,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:25,988 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-12-13 13:09:25,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:09:25,988 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 [2022-12-13 13:09:25,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:25,989 INFO L225 Difference]: With dead ends: 36 [2022-12-13 13:09:25,989 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 13:09:25,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:09:25,990 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:25,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:09:25,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 13:09:25,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-13 13:09:25,994 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) [2022-12-13 13:09:25,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-12-13 13:09:25,994 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2022-12-13 13:09:25,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:25,994 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-12-13 13:09:25,995 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) [2022-12-13 13:09:25,995 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-12-13 13:09:25,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 13:09:25,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:25,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:09:25,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:09:25,996 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:25,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:25,996 INFO L85 PathProgramCache]: Analyzing trace with hash 423767145, now seen corresponding path program 1 times [2022-12-13 13:09:25,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:25,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940890244] [2022-12-13 13:09:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:25,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:26,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:26,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940890244] [2022-12-13 13:09:26,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940890244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:09:26,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:09:26,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 13:09:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758274723] [2022-12-13 13:09:26,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:09:26,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:09:26,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:09:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:09:26,115 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) [2022-12-13 13:09:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:26,150 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-12-13 13:09:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 13:09:26,151 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 [2022-12-13 13:09:26,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:26,152 INFO L225 Difference]: With dead ends: 34 [2022-12-13 13:09:26,152 INFO L226 Difference]: Without dead ends: 29 [2022-12-13 13:09:26,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:09:26,153 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:26,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:09:26,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-13 13:09:26,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-13 13:09:26,155 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) [2022-12-13 13:09:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-12-13 13:09:26,156 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 25 [2022-12-13 13:09:26,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:26,156 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-12-13 13:09:26,156 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) [2022-12-13 13:09:26,156 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-12-13 13:09:26,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 13:09:26,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:26,157 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] [2022-12-13 13:09:26,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:09:26,157 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:26,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:26,157 INFO L85 PathProgramCache]: Analyzing trace with hash -875092666, now seen corresponding path program 1 times [2022-12-13 13:09:26,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:26,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977062283] [2022-12-13 13:09:26,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:26,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:26,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:26,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977062283] [2022-12-13 13:09:26,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977062283] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:09:26,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335803721] [2022-12-13 13:09:26,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:26,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:26,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:09:26,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:09:26,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:09:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:26,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 13:09:26,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:09:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:26,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:09:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:26,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335803721] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:09:26,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:09:26,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-12-13 13:09:26,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972217322] [2022-12-13 13:09:26,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:09:26,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 13:09:26,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:26,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 13:09:26,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-12-13 13:09:26,565 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) [2022-12-13 13:09:26,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:26,633 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-12-13 13:09:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 13:09:26,634 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 [2022-12-13 13:09:26,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:26,634 INFO L225 Difference]: With dead ends: 58 [2022-12-13 13:09:26,634 INFO L226 Difference]: Without dead ends: 53 [2022-12-13 13:09:26,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-12-13 13:09:26,636 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 33 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:26,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 18 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:09:26,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-13 13:09:26,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-13 13:09:26,642 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) [2022-12-13 13:09:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2022-12-13 13:09:26,643 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 27 [2022-12-13 13:09:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:26,643 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-12-13 13:09:26,643 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) [2022-12-13 13:09:26,643 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2022-12-13 13:09:26,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 13:09:26,644 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:26,644 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] [2022-12-13 13:09:26,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:09:26,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-13 13:09:26,845 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:26,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:26,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1668395554, now seen corresponding path program 2 times [2022-12-13 13:09:26,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:26,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246612333] [2022-12-13 13:09:26,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:26,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:27,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:27,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246612333] [2022-12-13 13:09:27,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246612333] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:09:27,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547612492] [2022-12-13 13:09:27,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:09:27,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:27,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:09:27,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:09:27,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:09:27,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:09:27,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:09:27,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 13:09:27,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:09:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:27,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:09:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:27,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547612492] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:09:27,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:09:27,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-12-13 13:09:27,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187769288] [2022-12-13 13:09:27,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:09:27,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-13 13:09:27,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:27,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-13 13:09:27,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-12-13 13:09:27,782 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) [2022-12-13 13:09:27,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:27,922 INFO L93 Difference]: Finished difference Result 106 states and 131 transitions. [2022-12-13 13:09:27,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-13 13:09:27,923 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 [2022-12-13 13:09:27,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:27,924 INFO L225 Difference]: With dead ends: 106 [2022-12-13 13:09:27,924 INFO L226 Difference]: Without dead ends: 101 [2022-12-13 13:09:27,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-12-13 13:09:27,925 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:27,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 18 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:09:27,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-12-13 13:09:27,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-12-13 13:09:27,934 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) [2022-12-13 13:09:27,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 102 transitions. [2022-12-13 13:09:27,935 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 102 transitions. Word has length 51 [2022-12-13 13:09:27,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:27,935 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 102 transitions. [2022-12-13 13:09:27,936 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) [2022-12-13 13:09:27,936 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 102 transitions. [2022-12-13 13:09:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 13:09:27,938 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:27,938 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] [2022-12-13 13:09:27,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:09:28,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 13:09:28,141 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:28,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:28,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1723682778, now seen corresponding path program 3 times [2022-12-13 13:09:28,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:28,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593026978] [2022-12-13 13:09:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:28,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:29,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 38 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:29,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:29,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593026978] [2022-12-13 13:09:29,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593026978] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:09:29,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828600415] [2022-12-13 13:09:29,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:09:29,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:29,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:09:29,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:09:29,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:09:29,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-13 13:09:29,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:09:29,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:09:29,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:09:29,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 111 proven. 1 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-12-13 13:09:29,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:09:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 111 proven. 1 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-12-13 13:09:29,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828600415] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:09:29,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:09:29,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 4, 4] total 53 [2022-12-13 13:09:29,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857757585] [2022-12-13 13:09:29,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:09:29,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-13 13:09:29,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:29,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-13 13:09:29,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-12-13 13:09:29,238 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) [2022-12-13 13:09:29,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:29,364 INFO L93 Difference]: Finished difference Result 113 states and 118 transitions. [2022-12-13 13:09:29,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-13 13:09:29,364 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 [2022-12-13 13:09:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:29,365 INFO L225 Difference]: With dead ends: 113 [2022-12-13 13:09:29,365 INFO L226 Difference]: Without dead ends: 108 [2022-12-13 13:09:29,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-12-13 13:09:29,367 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:29,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:09:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-12-13 13:09:29,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-12-13 13:09:29,375 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) [2022-12-13 13:09:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2022-12-13 13:09:29,376 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 99 [2022-12-13 13:09:29,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:29,376 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2022-12-13 13:09:29,376 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) [2022-12-13 13:09:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2022-12-13 13:09:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-13 13:09:29,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:29,378 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] [2022-12-13 13:09:29,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:09:29,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:29,579 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:29,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash -640925019, now seen corresponding path program 4 times [2022-12-13 13:09:29,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:29,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171526937] [2022-12-13 13:09:29,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:29,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:30,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 273 proven. 1482 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 13:09:30,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:30,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171526937] [2022-12-13 13:09:30,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171526937] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:09:30,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22121687] [2022-12-13 13:09:30,588 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:09:30,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:30,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:09:30,590 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:09:30,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:09:30,638 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:09:30,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:09:30,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-13 13:09:30,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:09:30,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 273 proven. 1482 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 13:09:30,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:09:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 273 proven. 1482 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 13:09:31,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22121687] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:09:31,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:09:31,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 53 [2022-12-13 13:09:31,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493220059] [2022-12-13 13:09:31,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:09:31,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-13 13:09:31,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:31,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-13 13:09:31,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-12-13 13:09:31,505 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) [2022-12-13 13:09:31,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:31,589 INFO L93 Difference]: Finished difference Result 124 states and 128 transitions. [2022-12-13 13:09:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-13 13:09:31,589 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 [2022-12-13 13:09:31,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:31,590 INFO L225 Difference]: With dead ends: 124 [2022-12-13 13:09:31,590 INFO L226 Difference]: Without dead ends: 114 [2022-12-13 13:09:31,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 165 SyntacticMatches, 46 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-12-13 13:09:31,592 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:31,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:09:31,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-13 13:09:31,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-12-13 13:09:31,599 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) [2022-12-13 13:09:31,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2022-12-13 13:09:31,600 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 107 [2022-12-13 13:09:31,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:31,600 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2022-12-13 13:09:31,600 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) [2022-12-13 13:09:31,600 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2022-12-13 13:09:31,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-13 13:09:31,602 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:31,602 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] [2022-12-13 13:09:31,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:09:31,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:31,803 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:31,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1058630724, now seen corresponding path program 5 times [2022-12-13 13:09:31,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:31,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489757616] [2022-12-13 13:09:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:31,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:32,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:32,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489757616] [2022-12-13 13:09:32,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489757616] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:09:32,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374140876] [2022-12-13 13:09:32,853 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 13:09:32,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:32,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:09:32,854 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:09:32,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:09:32,916 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 46 check-sat command(s) [2022-12-13 13:09:32,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:09:32,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 13:09:32,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:09:33,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1035 proven. 484 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-12-13 13:09:33,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:09:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1035 proven. 484 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-12-13 13:09:34,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374140876] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:09:34,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:09:34,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 25, 25] total 98 [2022-12-13 13:09:34,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70253727] [2022-12-13 13:09:34,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:09:34,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-12-13 13:09:34,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:34,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-12-13 13:09:34,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2022-12-13 13:09:34,621 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) [2022-12-13 13:09:34,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:34,832 INFO L93 Difference]: Finished difference Result 201 states and 243 transitions. [2022-12-13 13:09:34,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-12-13 13:09:34,833 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 [2022-12-13 13:09:34,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:34,833 INFO L225 Difference]: With dead ends: 201 [2022-12-13 13:09:34,833 INFO L226 Difference]: Without dead ends: 198 [2022-12-13 13:09:34,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2022-12-13 13:09:34,835 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:34,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:09:34,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-12-13 13:09:34,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-12-13 13:09:34,841 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) [2022-12-13 13:09:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 199 transitions. [2022-12-13 13:09:34,842 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 199 transitions. Word has length 113 [2022-12-13 13:09:34,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:34,842 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 199 transitions. [2022-12-13 13:09:34,842 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) [2022-12-13 13:09:34,842 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 199 transitions. [2022-12-13 13:09:34,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-12-13 13:09:34,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:34,844 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] [2022-12-13 13:09:34,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 13:09:35,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:35,046 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:35,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:35,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1561171392, now seen corresponding path program 6 times [2022-12-13 13:09:35,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:35,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984723549] [2022-12-13 13:09:35,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:35,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 0 proven. 7569 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:09:38,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:38,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984723549] [2022-12-13 13:09:38,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984723549] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:09:38,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83882168] [2022-12-13 13:09:38,338 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 13:09:38,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:38,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:09:38,339 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:09:38,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 13:09:38,475 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 87 check-sat command(s) [2022-12-13 13:09:38,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:09:38,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-13 13:09:38,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:09:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 3813 proven. 2116 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2022-12-13 13:09:38,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:09:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 3813 proven. 2116 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2022-12-13 13:09:40,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83882168] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:09:40,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:09:40,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 49, 49] total 102 [2022-12-13 13:09:40,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352967111] [2022-12-13 13:09:40,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:09:40,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-12-13 13:09:40,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:40,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-12-13 13:09:40,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-12-13 13:09:40,396 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) [2022-12-13 13:09:40,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:40,651 INFO L93 Difference]: Finished difference Result 209 states and 213 transitions. [2022-12-13 13:09:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-12-13 13:09:40,652 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 [2022-12-13 13:09:40,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:40,653 INFO L225 Difference]: With dead ends: 209 [2022-12-13 13:09:40,654 INFO L226 Difference]: Without dead ends: 206 [2022-12-13 13:09:40,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 347 SyntacticMatches, 44 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1078 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-12-13 13:09:40,657 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:40,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 23 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:09:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-13 13:09:40,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-12-13 13:09:40,662 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) [2022-12-13 13:09:40,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 207 transitions. [2022-12-13 13:09:40,662 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 207 transitions. Word has length 197 [2022-12-13 13:09:40,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:40,663 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 207 transitions. [2022-12-13 13:09:40,663 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) [2022-12-13 13:09:40,663 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 207 transitions. [2022-12-13 13:09:40,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-12-13 13:09:40,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:40,664 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] [2022-12-13 13:09:40,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 13:09:40,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 13:09:40,866 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:40,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:40,867 INFO L85 PathProgramCache]: Analyzing trace with hash 782272296, now seen corresponding path program 7 times [2022-12-13 13:09:40,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:40,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552432118] [2022-12-13 13:09:40,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:40,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 6559 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-12-13 13:09:42,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:42,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552432118] [2022-12-13 13:09:42,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552432118] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:09:42,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449354159] [2022-12-13 13:09:42,376 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 13:09:42,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:09:42,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:09:42,377 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:09:42,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 13:09:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:42,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 108 conjunts are in the unsatisfiable core [2022-12-13 13:09:42,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:09:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 6559 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-12-13 13:09:42,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:09:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 6559 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-12-13 13:09:43,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449354159] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:09:43,412 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:09:43,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 55 [2022-12-13 13:09:43,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531695002] [2022-12-13 13:09:43,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:09:43,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-12-13 13:09:43,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:43,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-12-13 13:09:43,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=2862, Unknown=0, NotChecked=0, Total=2970 [2022-12-13 13:09:43,414 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) [2022-12-13 13:09:44,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:44,156 INFO L93 Difference]: Finished difference Result 212 states and 213 transitions. [2022-12-13 13:09:44,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-13 13:09:44,156 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 [2022-12-13 13:09:44,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:44,158 INFO L225 Difference]: With dead ends: 212 [2022-12-13 13:09:44,158 INFO L226 Difference]: Without dead ends: 209 [2022-12-13 13:09:44,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 405 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=113, Invalid=2967, Unknown=0, NotChecked=0, Total=3080 [2022-12-13 13:09:44,160 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 2 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:44,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3871 Invalid, 2812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:09:44,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-12-13 13:09:44,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 208. [2022-12-13 13:09:44,166 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) [2022-12-13 13:09:44,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 209 transitions. [2022-12-13 13:09:44,167 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 209 transitions. Word has length 205 [2022-12-13 13:09:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:44,167 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 209 transitions. [2022-12-13 13:09:44,167 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) [2022-12-13 13:09:44,167 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 209 transitions. [2022-12-13 13:09:44,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-12-13 13:09:44,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:09:44,169 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] [2022-12-13 13:09:44,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 13:09:44,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 13:09:44,371 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:09:44,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:09:44,372 INFO L85 PathProgramCache]: Analyzing trace with hash 136861218, now seen corresponding path program 8 times [2022-12-13 13:09:44,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:09:44,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101467795] [2022-12-13 13:09:44,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:09:44,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:09:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:09:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 6742 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-12-13 13:09:45,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:09:45,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101467795] [2022-12-13 13:09:45,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101467795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:09:45,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:09:45,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-12-13 13:09:45,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073581964] [2022-12-13 13:09:45,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:09:45,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-13 13:09:45,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:09:45,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-13 13:09:45,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2022-12-13 13:09:45,675 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) [2022-12-13 13:09:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:09:45,837 INFO L93 Difference]: Finished difference Result 208 states and 209 transitions. [2022-12-13 13:09:45,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-13 13:09:45,838 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 [2022-12-13 13:09:45,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:09:45,838 INFO L225 Difference]: With dead ends: 208 [2022-12-13 13:09:45,838 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 13:09:45,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2022-12-13 13:09:45,839 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:09:45,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:09:45,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 13:09:45,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 13:09:45,840 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) [2022-12-13 13:09:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 13:09:45,840 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2022-12-13 13:09:45,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:09:45,840 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:09:45,840 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) [2022-12-13 13:09:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 13:09:45,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 13:09:45,842 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 13:09:45,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 13:09:45,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 13:09:46,979 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 208) no Hoare annotation was computed. [2022-12-13 13:09:46,980 INFO L895 garLoopResultBuilder]: At program point $Ultimate##38(lines 72 105) 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))) [2022-12-13 13:09:46,980 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 13 214) the Hoare annotation is: true [2022-12-13 13:09:46,980 INFO L895 garLoopResultBuilder]: At program point $Ultimate##30(lines 59 129) 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)) [2022-12-13 13:09:46,980 INFO L895 garLoopResultBuilder]: At program point $Ultimate##34(lines 65 117) 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|)) [2022-12-13 13:09:46,980 INFO L895 garLoopResultBuilder]: At program point $Ultimate##6(lines 23 201) 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)) [2022-12-13 13:09:46,980 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 103) no Hoare annotation was computed. [2022-12-13 13:09:46,980 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 124) no Hoare annotation was computed. [2022-12-13 13:09:46,980 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 13:09:46,980 INFO L895 garLoopResultBuilder]: At program point $Ultimate##26(lines 53 141) 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)) [2022-12-13 13:09:46,980 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 172) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L895 garLoopResultBuilder]: At program point $Ultimate##22(lines 47 153) 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|)) [2022-12-13 13:09:46,981 INFO L895 garLoopResultBuilder]: At program point $Ultimate##18(lines 41 165) 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|)) [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L895 garLoopResultBuilder]: At program point $Ultimate##10(lines 29 189) 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|)) [2022-12-13 13:09:46,981 INFO L895 garLoopResultBuilder]: At program point $Ultimate##14(lines 35 177) 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)) [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 136) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 184) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 148) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 85) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 196) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 213) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 112) no Hoare annotation was computed. [2022-12-13 13:09:46,981 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 160) no Hoare annotation was computed. [2022-12-13 13:09:46,983 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:09:46,985 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:09:47,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:09:47 BoogieIcfgContainer [2022-12-13 13:09:47,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:09:47,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:09:47,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:09:47,001 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:09:47,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:09:24" (3/4) ... [2022-12-13 13:09:47,003 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:09:47,011 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-13 13:09:47,011 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 13:09:47,011 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 13:09:47,011 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:09:47,036 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:09:47,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:09:47,037 INFO L158 Benchmark]: Toolchain (without parser) took 22656.33ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 103.3MB in the beginning and 44.3MB in the end (delta: 59.0MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. [2022-12-13 13:09:47,037 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:09:47,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.10ms. Allocated memory is still 138.4MB. Free memory was 102.8MB in the beginning and 91.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 13:09:47,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.80ms. Allocated memory is still 138.4MB. Free memory was 91.3MB in the beginning and 89.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:09:47,037 INFO L158 Benchmark]: Boogie Preprocessor took 14.41ms. Allocated memory is still 138.4MB. Free memory was 89.9MB in the beginning and 88.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:09:47,037 INFO L158 Benchmark]: RCFGBuilder took 239.69ms. Allocated memory is still 138.4MB. Free memory was 88.7MB in the beginning and 76.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:09:47,038 INFO L158 Benchmark]: TraceAbstraction took 22121.48ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 75.7MB in the beginning and 47.5MB in the end (delta: 28.2MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2022-12-13 13:09:47,038 INFO L158 Benchmark]: Witness Printer took 35.30ms. Allocated memory is still 169.9MB. Free memory was 47.5MB in the beginning and 44.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:09:47,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.10ms. Allocated memory is still 138.4MB. Free memory was 102.8MB in the beginning and 91.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.80ms. Allocated memory is still 138.4MB. Free memory was 91.3MB in the beginning and 89.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.41ms. Allocated memory is still 138.4MB. Free memory was 89.9MB in the beginning and 88.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 239.69ms. Allocated memory is still 138.4MB. Free memory was 88.7MB in the beginning and 76.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 22121.48ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 75.7MB in the beginning and 47.5MB in the end (delta: 28.2MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * Witness Printer took 35.30ms. Allocated memory is still 169.9MB. Free memory was 47.5MB in the beginning and 44.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 22.1s, OverallIterations: 16, TraceHistogramMax: 92, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 4206 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3925 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4778 IncrementalHoareTripleChecker+Invalid, 4970 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 281 mSDtfsCounter, 4778 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2034 GetRequests, 1434 SyntacticMatches, 94 SemanticMatches, 506 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2521 ImplicationChecksByTransitivity, 10.6s 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, 0.2s HoareSimplificationTime, 10 FomulaSimplificationsInter, 410 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 16.0s 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: 72]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (main__y <= 50 && 50 <= main__y) && main__x <= 3 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (main__x <= 5 && main__y <= 50) && 50 <= main__y - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (main__x <= 8 && main__y <= 50) && 50 <= main__y - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (main__x <= 2 && main__y <= 50) && 50 <= main__y - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (main__y <= 50 && main__x <= 4) && 50 <= main__y - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: (main__y <= 50 && 50 <= main__y) && main__x <= 7 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (main__y <= 50 && 50 <= main__y) && main__x <= 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (main__y <= 50 && 50 <= main__y) && main__x <= 6 RESULT: Ultimate proved your program to be correct! [2022-12-13 13:09:47,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87730097-da5d-41bd-8934-f027149d43af/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE