./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbc8b86e86cd6737c503bef017b2b1abd25895fb1927b426e7290e477fc0b63c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:10:34,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:10:34,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:10:34,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:10:34,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:10:34,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:10:34,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:10:34,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:10:34,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:10:34,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:10:34,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:10:34,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:10:34,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:10:34,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:10:34,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:10:34,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:10:34,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:10:34,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:10:34,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:10:35,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:10:35,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:10:35,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:10:35,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:10:35,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:10:35,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:10:35,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:10:35,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:10:35,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:10:35,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:10:35,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:10:35,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:10:35,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:10:35,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:10:35,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:10:35,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:10:35,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:10:35,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:10:35,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:10:35,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:10:35,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:10:35,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:10:35,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:10:35,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:10:35,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:10:35,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:10:35,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:10:35,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:10:35,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:10:35,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:10:35,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:10:35,058 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:10:35,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:10:35,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:10:35,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:10:35,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:10:35,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:10:35,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:10:35,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:10:35,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:10:35,061 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:10:35,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:10:35,061 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:10:35,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:10:35,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:10:35,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:10:35,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:10:35,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:10:35,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:10:35,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:10:35,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:10:35,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:10:35,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:10:35,064 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:10:35,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:10:35,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:10:35,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbc8b86e86cd6737c503bef017b2b1abd25895fb1927b426e7290e477fc0b63c [2022-11-21 16:10:35,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:10:35,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:10:35,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:10:35,369 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:10:35,370 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:10:35,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/eca-rers2012/Problem14_label04.c [2022-11-21 16:10:38,442 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:10:38,774 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:10:38,774 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/sv-benchmarks/c/eca-rers2012/Problem14_label04.c [2022-11-21 16:10:38,786 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/data/485bdcda2/2c3de394735241e4befb2d46beaf835b/FLAGa9096d9d9 [2022-11-21 16:10:38,805 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/data/485bdcda2/2c3de394735241e4befb2d46beaf835b [2022-11-21 16:10:38,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:10:38,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:10:38,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:10:38,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:10:38,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:10:38,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:10:38" (1/1) ... [2022-11-21 16:10:38,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f83d1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:38, skipping insertion in model container [2022-11-21 16:10:38,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:10:38" (1/1) ... [2022-11-21 16:10:38,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:10:38,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:10:39,098 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_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/sv-benchmarks/c/eca-rers2012/Problem14_label04.c[5382,5395] [2022-11-21 16:10:39,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:10:39,310 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:10:39,338 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_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/sv-benchmarks/c/eca-rers2012/Problem14_label04.c[5382,5395] [2022-11-21 16:10:39,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:10:39,543 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:10:39,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39 WrapperNode [2022-11-21 16:10:39,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:10:39,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:10:39,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:10:39,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:10:39,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,657 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-11-21 16:10:39,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:10:39,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:10:39,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:10:39,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:10:39,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,744 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:10:39,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:10:39,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:10:39,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:10:39,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (1/1) ... [2022-11-21 16:10:39,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:10:39,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:10:39,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:10:39,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:10:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:10:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:10:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:10:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:10:39,997 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:10:39,999 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:10:41,375 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:10:41,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:10:41,398 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:10:41,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:10:41 BoogieIcfgContainer [2022-11-21 16:10:41,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:10:41,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:10:41,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:10:41,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:10:41,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:10:38" (1/3) ... [2022-11-21 16:10:41,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2bf740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:10:41, skipping insertion in model container [2022-11-21 16:10:41,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:10:39" (2/3) ... [2022-11-21 16:10:41,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a2bf740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:10:41, skipping insertion in model container [2022-11-21 16:10:41,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:10:41" (3/3) ... [2022-11-21 16:10:41,414 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label04.c [2022-11-21 16:10:41,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:10:41,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:10:41,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:10:41,502 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;@6fae3ea7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:10:41,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:10:41,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:41,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-21 16:10:41,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:41,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:41,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:41,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:41,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1382487458, now seen corresponding path program 1 times [2022-11-21 16:10:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:41,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503624407] [2022-11-21 16:10:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:41,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:42,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:42,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:42,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503624407] [2022-11-21 16:10:42,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503624407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:42,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:42,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:10:42,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466335167] [2022-11-21 16:10:42,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:42,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:10:42,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:42,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:10:42,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:10:42,208 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:44,314 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2022-11-21 16:10:44,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:10:44,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2022-11-21 16:10:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:44,332 INFO L225 Difference]: With dead ends: 850 [2022-11-21 16:10:44,332 INFO L226 Difference]: Without dead ends: 538 [2022-11-21 16:10:44,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:10:44,339 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 485 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:44,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 194 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-21 16:10:44,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-21 16:10:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-11-21 16:10:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:44,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2022-11-21 16:10:44,408 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 52 [2022-11-21 16:10:44,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:44,409 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2022-11-21 16:10:44,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2022-11-21 16:10:44,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-21 16:10:44,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:44,413 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:44,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:10:44,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:44,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:44,415 INFO L85 PathProgramCache]: Analyzing trace with hash 327314734, now seen corresponding path program 1 times [2022-11-21 16:10:44,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:44,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609791483] [2022-11-21 16:10:44,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:44,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:44,797 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:44,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:44,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609791483] [2022-11-21 16:10:44,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609791483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:44,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:44,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:10:44,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173919920] [2022-11-21 16:10:44,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:44,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:10:44,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:44,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:10:44,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:10:44,802 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:45,923 INFO L93 Difference]: Finished difference Result 1281 states and 1978 transitions. [2022-11-21 16:10:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:10:45,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 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 132 [2022-11-21 16:10:45,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:45,928 INFO L225 Difference]: With dead ends: 1281 [2022-11-21 16:10:45,928 INFO L226 Difference]: Without dead ends: 894 [2022-11-21 16:10:45,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:10:45,931 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 118 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:45,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 119 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 16:10:45,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-11-21 16:10:45,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 716. [2022-11-21 16:10:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.220979020979021) internal successors, (873), 715 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:45,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 873 transitions. [2022-11-21 16:10:45,968 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 873 transitions. Word has length 132 [2022-11-21 16:10:45,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:45,969 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 873 transitions. [2022-11-21 16:10:45,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:45,969 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 873 transitions. [2022-11-21 16:10:45,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-21 16:10:45,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:45,978 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:45,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:10:45,978 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:45,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash 138717315, now seen corresponding path program 1 times [2022-11-21 16:10:45,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:45,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415883543] [2022-11-21 16:10:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:45,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 99 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:46,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:46,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415883543] [2022-11-21 16:10:46,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415883543] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:10:46,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948979566] [2022-11-21 16:10:46,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:46,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:10:46,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:10:46,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:10:46,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:10:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:46,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:10:46,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:10:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-21 16:10:46,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:10:46,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948979566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:46,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:10:46,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-21 16:10:46,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219590666] [2022-11-21 16:10:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:46,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:10:46,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:46,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:10:46,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:10:46,864 INFO L87 Difference]: Start difference. First operand 716 states and 873 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:47,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:47,643 INFO L93 Difference]: Finished difference Result 1608 states and 2071 transitions. [2022-11-21 16:10:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:10:47,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 223 [2022-11-21 16:10:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:47,652 INFO L225 Difference]: With dead ends: 1608 [2022-11-21 16:10:47,653 INFO L226 Difference]: Without dead ends: 1072 [2022-11-21 16:10:47,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:10:47,658 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 131 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:47,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 85 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 16:10:47,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-11-21 16:10:47,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2022-11-21 16:10:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.211646136618141) internal successors, (1082), 893 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1082 transitions. [2022-11-21 16:10:47,694 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1082 transitions. Word has length 223 [2022-11-21 16:10:47,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:47,697 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1082 transitions. [2022-11-21 16:10:47,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:47,698 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1082 transitions. [2022-11-21 16:10:47,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-21 16:10:47,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:47,714 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:47,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:10:47,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:10:47,922 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:47,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:47,922 INFO L85 PathProgramCache]: Analyzing trace with hash 880914236, now seen corresponding path program 1 times [2022-11-21 16:10:47,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:47,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680691840] [2022-11-21 16:10:47,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:47,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:10:48,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:48,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680691840] [2022-11-21 16:10:48,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680691840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:48,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:48,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:10:48,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566367564] [2022-11-21 16:10:48,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:48,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:10:48,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:48,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:10:48,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:10:48,235 INFO L87 Difference]: Start difference. First operand 894 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:48,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:48,855 INFO L93 Difference]: Finished difference Result 1964 states and 2415 transitions. [2022-11-21 16:10:48,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:10:48,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 226 [2022-11-21 16:10:48,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:48,861 INFO L225 Difference]: With dead ends: 1964 [2022-11-21 16:10:48,861 INFO L226 Difference]: Without dead ends: 1250 [2022-11-21 16:10:48,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:10:48,869 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:48,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 58 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:10:48,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-11-21 16:10:48,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2022-11-21 16:10:48,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.1753402722177742) internal successors, (1468), 1249 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:48,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1468 transitions. [2022-11-21 16:10:48,931 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1468 transitions. Word has length 226 [2022-11-21 16:10:48,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:48,932 INFO L495 AbstractCegarLoop]: Abstraction has 1250 states and 1468 transitions. [2022-11-21 16:10:48,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:48,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1468 transitions. [2022-11-21 16:10:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-11-21 16:10:48,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:48,943 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-21 16:10:48,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:10:48,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:48,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:48,945 INFO L85 PathProgramCache]: Analyzing trace with hash 142603424, now seen corresponding path program 1 times [2022-11-21 16:10:48,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:48,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640036308] [2022-11-21 16:10:48,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:48,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:49,634 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 228 proven. 130 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-21 16:10:49,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:49,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640036308] [2022-11-21 16:10:49,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640036308] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:10:49,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156705294] [2022-11-21 16:10:49,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:49,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:10:49,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:10:49,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:10:49,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:10:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:49,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:10:49,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:10:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 16:10:50,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:10:50,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156705294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:50,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:10:50,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 16:10:50,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863873921] [2022-11-21 16:10:50,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:50,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:10:50,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:50,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:10:50,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:10:50,447 INFO L87 Difference]: Start difference. First operand 1250 states and 1468 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:51,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:51,158 INFO L93 Difference]: Finished difference Result 2854 states and 3498 transitions. [2022-11-21 16:10:51,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:10:51,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 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 386 [2022-11-21 16:10:51,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:51,166 INFO L225 Difference]: With dead ends: 2854 [2022-11-21 16:10:51,166 INFO L226 Difference]: Without dead ends: 1962 [2022-11-21 16:10:51,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:10:51,169 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 65 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:51,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 16:10:51,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-11-21 16:10:51,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2022-11-21 16:10:51,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1662417134115248) internal successors, (2287), 1961 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2287 transitions. [2022-11-21 16:10:51,215 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2287 transitions. Word has length 386 [2022-11-21 16:10:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:51,216 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 2287 transitions. [2022-11-21 16:10:51,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:51,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2287 transitions. [2022-11-21 16:10:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-21 16:10:51,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:51,225 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:51,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:10:51,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:10:51,433 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:51,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:51,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1255761555, now seen corresponding path program 1 times [2022-11-21 16:10:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:51,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735180783] [2022-11-21 16:10:51,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:51,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 16:10:52,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:52,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735180783] [2022-11-21 16:10:52,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735180783] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:10:52,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580231538] [2022-11-21 16:10:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:52,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:10:52,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:10:52,041 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:10:52,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:10:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:52,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:10:52,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:10:52,929 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2022-11-21 16:10:52,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:10:52,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580231538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:52,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:10:52,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-11-21 16:10:52,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115269174] [2022-11-21 16:10:52,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:52,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:10:52,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:52,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:10:52,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:10:52,931 INFO L87 Difference]: Start difference. First operand 1962 states and 2287 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:53,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:53,552 INFO L93 Difference]: Finished difference Result 2854 states and 3290 transitions. [2022-11-21 16:10:53,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:10:53,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 432 [2022-11-21 16:10:53,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:53,563 INFO L225 Difference]: With dead ends: 2854 [2022-11-21 16:10:53,563 INFO L226 Difference]: Without dead ends: 2852 [2022-11-21 16:10:53,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:10:53,565 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:53,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 28 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:10:53,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-11-21 16:10:53,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1784. [2022-11-21 16:10:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1402131239484015) internal successors, (2033), 1783 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:53,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2033 transitions. [2022-11-21 16:10:53,616 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2033 transitions. Word has length 432 [2022-11-21 16:10:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:53,617 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 2033 transitions. [2022-11-21 16:10:53,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:53,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2033 transitions. [2022-11-21 16:10:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2022-11-21 16:10:53,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:53,626 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:53,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:10:53,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:10:53,832 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:53,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:53,833 INFO L85 PathProgramCache]: Analyzing trace with hash -35807260, now seen corresponding path program 1 times [2022-11-21 16:10:53,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:53,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323361140] [2022-11-21 16:10:53,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:53,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-11-21 16:10:54,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:54,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323361140] [2022-11-21 16:10:54,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323361140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:54,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:54,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:10:54,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246127438] [2022-11-21 16:10:54,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:54,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:10:54,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:54,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:10:54,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:10:54,301 INFO L87 Difference]: Start difference. First operand 1784 states and 2033 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:55,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:55,115 INFO L93 Difference]: Finished difference Result 3417 states and 3936 transitions. [2022-11-21 16:10:55,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:10:55,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 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 434 [2022-11-21 16:10:55,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:55,123 INFO L225 Difference]: With dead ends: 3417 [2022-11-21 16:10:55,123 INFO L226 Difference]: Without dead ends: 1962 [2022-11-21 16:10:55,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:10:55,127 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:55,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-21 16:10:55,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-11-21 16:10:55,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2022-11-21 16:10:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.089736399326977) internal successors, (1943), 1783 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1943 transitions. [2022-11-21 16:10:55,180 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1943 transitions. Word has length 434 [2022-11-21 16:10:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:55,181 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 1943 transitions. [2022-11-21 16:10:55,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:55,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1943 transitions. [2022-11-21 16:10:55,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-11-21 16:10:55,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:55,196 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:55,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:10:55,197 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:55,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:55,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1854062487, now seen corresponding path program 1 times [2022-11-21 16:10:55,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:55,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081618651] [2022-11-21 16:10:55,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:55,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 16:10:55,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:55,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081618651] [2022-11-21 16:10:55,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081618651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:55,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:55,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:10:55,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785925815] [2022-11-21 16:10:55,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:55,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:10:55,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:55,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:10:55,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:10:55,728 INFO L87 Difference]: Start difference. First operand 1784 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:56,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:56,359 INFO L93 Difference]: Finished difference Result 3922 states and 4347 transitions. [2022-11-21 16:10:56,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:10:56,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 445 [2022-11-21 16:10:56,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:56,368 INFO L225 Difference]: With dead ends: 3922 [2022-11-21 16:10:56,368 INFO L226 Difference]: Without dead ends: 2496 [2022-11-21 16:10:56,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:10:56,372 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:56,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:10:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-11-21 16:10:56,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2022-11-21 16:10:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.092184368737475) internal successors, (2725), 2495 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:56,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2725 transitions. [2022-11-21 16:10:56,423 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2725 transitions. Word has length 445 [2022-11-21 16:10:56,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:56,424 INFO L495 AbstractCegarLoop]: Abstraction has 2496 states and 2725 transitions. [2022-11-21 16:10:56,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:56,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2725 transitions. [2022-11-21 16:10:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-11-21 16:10:56,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:56,429 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:56,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:10:56,430 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:56,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:56,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1718197722, now seen corresponding path program 1 times [2022-11-21 16:10:56,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:56,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180045536] [2022-11-21 16:10:56,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:56,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:56,886 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 16:10:56,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:56,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180045536] [2022-11-21 16:10:56,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180045536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:56,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:56,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:10:56,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714079729] [2022-11-21 16:10:56,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:56,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:10:56,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:56,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:10:56,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:10:56,893 INFO L87 Difference]: Start difference. First operand 2496 states and 2725 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:57,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:57,512 INFO L93 Difference]: Finished difference Result 5880 states and 6513 transitions. [2022-11-21 16:10:57,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:10:57,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 486 [2022-11-21 16:10:57,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:57,525 INFO L225 Difference]: With dead ends: 5880 [2022-11-21 16:10:57,525 INFO L226 Difference]: Without dead ends: 3742 [2022-11-21 16:10:57,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:10:57,530 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:57,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 50 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:10:57,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-11-21 16:10:57,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2022-11-21 16:10:57,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0828655439722) internal successors, (4051), 3741 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:57,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4051 transitions. [2022-11-21 16:10:57,609 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4051 transitions. Word has length 486 [2022-11-21 16:10:57,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:57,610 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4051 transitions. [2022-11-21 16:10:57,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4051 transitions. [2022-11-21 16:10:57,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2022-11-21 16:10:57,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:57,616 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:57,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:10:57,616 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:57,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:57,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1589037133, now seen corresponding path program 1 times [2022-11-21 16:10:57,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:57,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176949916] [2022-11-21 16:10:57,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:57,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:58,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-21 16:10:58,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:58,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176949916] [2022-11-21 16:10:58,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176949916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:10:58,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:10:58,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:10:58,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979880508] [2022-11-21 16:10:58,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:10:58,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:10:58,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:10:58,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:10:58,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:10:58,201 INFO L87 Difference]: Start difference. First operand 3742 states and 4051 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:58,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:10:58,894 INFO L93 Difference]: Finished difference Result 6948 states and 7546 transitions. [2022-11-21 16:10:58,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:10:58,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 522 [2022-11-21 16:10:58,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:10:58,906 INFO L225 Difference]: With dead ends: 6948 [2022-11-21 16:10:58,906 INFO L226 Difference]: Without dead ends: 3564 [2022-11-21 16:10:58,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:10:58,911 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:10:58,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 242 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:10:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2022-11-21 16:10:58,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2022-11-21 16:10:58,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.078578110383536) internal successors, (3459), 3207 states have internal predecessors, (3459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:58,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3459 transitions. [2022-11-21 16:10:58,999 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3459 transitions. Word has length 522 [2022-11-21 16:10:59,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:10:59,000 INFO L495 AbstractCegarLoop]: Abstraction has 3208 states and 3459 transitions. [2022-11-21 16:10:59,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:10:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3459 transitions. [2022-11-21 16:10:59,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2022-11-21 16:10:59,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:10:59,009 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:10:59,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:10:59,010 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:10:59,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:10:59,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1310836641, now seen corresponding path program 1 times [2022-11-21 16:10:59,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:10:59,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028330557] [2022-11-21 16:10:59,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:59,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:10:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 16:10:59,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:10:59,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028330557] [2022-11-21 16:10:59,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028330557] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:10:59,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542398038] [2022-11-21 16:10:59,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:10:59,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:10:59,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:10:59,625 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:10:59,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:10:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:10:59,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:10:59,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:11:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 16:11:00,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:11:00,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 16:11:00,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542398038] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:11:00,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:11:00,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-21 16:11:00,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868651577] [2022-11-21 16:11:00,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:11:00,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:11:00,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:00,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:11:00,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:00,683 INFO L87 Difference]: Start difference. First operand 3208 states and 3459 transitions. Second operand has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:01,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:01,959 INFO L93 Difference]: Finished difference Result 7482 states and 8139 transitions. [2022-11-21 16:11:01,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:11:01,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 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 641 [2022-11-21 16:11:01,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:01,973 INFO L225 Difference]: With dead ends: 7482 [2022-11-21 16:11:01,973 INFO L226 Difference]: Without dead ends: 4632 [2022-11-21 16:11:01,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1284 GetRequests, 1280 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:01,977 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 361 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:01,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 64 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-21 16:11:01,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2022-11-21 16:11:02,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4276. [2022-11-21 16:11:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0776608187134502) internal successors, (4607), 4275 states have internal predecessors, (4607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4607 transitions. [2022-11-21 16:11:02,057 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4607 transitions. Word has length 641 [2022-11-21 16:11:02,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:02,058 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 4607 transitions. [2022-11-21 16:11:02,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:02,059 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4607 transitions. [2022-11-21 16:11:02,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2022-11-21 16:11:02,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:02,065 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:02,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:11:02,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-21 16:11:02,272 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:02,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:02,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2043682623, now seen corresponding path program 1 times [2022-11-21 16:11:02,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:02,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110557344] [2022-11-21 16:11:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:02,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:02,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1038 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2022-11-21 16:11:02,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:02,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110557344] [2022-11-21 16:11:02,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110557344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:02,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:02,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:11:02,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162096251] [2022-11-21 16:11:02,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:02,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:02,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:02,822 INFO L87 Difference]: Start difference. First operand 4276 states and 4607 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:03,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:03,417 INFO L93 Difference]: Finished difference Result 9618 states and 10448 transitions. [2022-11-21 16:11:03,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:03,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 713 [2022-11-21 16:11:03,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:03,444 INFO L225 Difference]: With dead ends: 9618 [2022-11-21 16:11:03,449 INFO L226 Difference]: Without dead ends: 5700 [2022-11-21 16:11:03,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:03,455 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:03,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 37 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:11:03,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-11-21 16:11:03,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5344. [2022-11-21 16:11:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.078420363091896) internal successors, (5762), 5343 states have internal predecessors, (5762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:03,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5762 transitions. [2022-11-21 16:11:03,572 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5762 transitions. Word has length 713 [2022-11-21 16:11:03,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:03,573 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5762 transitions. [2022-11-21 16:11:03,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:03,574 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5762 transitions. [2022-11-21 16:11:03,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2022-11-21 16:11:03,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:03,580 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:03,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:11:03,581 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:03,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:03,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1828962068, now seen corresponding path program 1 times [2022-11-21 16:11:03,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:03,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104158042] [2022-11-21 16:11:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:03,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1146 proven. 93 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-11-21 16:11:04,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:04,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104158042] [2022-11-21 16:11:04,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104158042] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:04,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782845445] [2022-11-21 16:11:04,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:04,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:04,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:04,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:11:04,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:11:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:04,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:11:04,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:11:05,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1239 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-11-21 16:11:05,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:11:05,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782845445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:05,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:11:05,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-21 16:11:05,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417746407] [2022-11-21 16:11:05,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:05,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:05,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:05,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:05,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:05,574 INFO L87 Difference]: Start difference. First operand 5344 states and 5762 transitions. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:06,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:06,158 INFO L93 Difference]: Finished difference Result 10864 states and 11716 transitions. [2022-11-21 16:11:06,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:06,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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 731 [2022-11-21 16:11:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:06,176 INFO L225 Difference]: With dead ends: 10864 [2022-11-21 16:11:06,177 INFO L226 Difference]: Without dead ends: 5878 [2022-11-21 16:11:06,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:06,183 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:06,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 64 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:11:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-11-21 16:11:06,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5522. [2022-11-21 16:11:06,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0760731751494295) internal successors, (5941), 5521 states have internal predecessors, (5941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5941 transitions. [2022-11-21 16:11:06,278 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5941 transitions. Word has length 731 [2022-11-21 16:11:06,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:06,279 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5941 transitions. [2022-11-21 16:11:06,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:06,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5941 transitions. [2022-11-21 16:11:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2022-11-21 16:11:06,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:06,287 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:06,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:11:06,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:06,498 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:06,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:06,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1867062169, now seen corresponding path program 1 times [2022-11-21 16:11:06,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:06,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313274748] [2022-11-21 16:11:06,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:06,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:07,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1758 backedges. 1071 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2022-11-21 16:11:07,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:07,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313274748] [2022-11-21 16:11:07,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313274748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:07,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:07,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:11:07,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187733353] [2022-11-21 16:11:07,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:07,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:07,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:07,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:07,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:07,505 INFO L87 Difference]: Start difference. First operand 5522 states and 5941 transitions. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:08,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:08,127 INFO L93 Difference]: Finished difference Result 10864 states and 11735 transitions. [2022-11-21 16:11:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:08,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 758 [2022-11-21 16:11:08,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:08,140 INFO L225 Difference]: With dead ends: 10864 [2022-11-21 16:11:08,140 INFO L226 Difference]: Without dead ends: 5700 [2022-11-21 16:11:08,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:08,146 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:08,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 227 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:11:08,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-11-21 16:11:08,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2022-11-21 16:11:08,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0701877522372345) internal successors, (6099), 5699 states have internal predecessors, (6099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:08,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6099 transitions. [2022-11-21 16:11:08,236 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6099 transitions. Word has length 758 [2022-11-21 16:11:08,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:08,237 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 6099 transitions. [2022-11-21 16:11:08,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6099 transitions. [2022-11-21 16:11:08,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2022-11-21 16:11:08,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:08,245 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:08,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:11:08,246 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:08,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:08,246 INFO L85 PathProgramCache]: Analyzing trace with hash -540711606, now seen corresponding path program 1 times [2022-11-21 16:11:08,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:08,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22798501] [2022-11-21 16:11:08,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:08,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 1215 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-11-21 16:11:10,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:10,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22798501] [2022-11-21 16:11:10,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22798501] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:10,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343981295] [2022-11-21 16:11:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:10,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:10,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:10,250 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:11:10,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:11:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:10,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:11:10,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:11:11,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 928 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2022-11-21 16:11:11,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:11:11,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343981295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:11,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:11:11,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-21 16:11:11,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193135485] [2022-11-21 16:11:11,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:11,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:11:11,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:11,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:11:11,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:11:11,575 INFO L87 Difference]: Start difference. First operand 5700 states and 6099 transitions. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:12,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:12,795 INFO L93 Difference]: Finished difference Result 12466 states and 13394 transitions. [2022-11-21 16:11:12,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:11:12,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 808 [2022-11-21 16:11:12,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:12,808 INFO L225 Difference]: With dead ends: 12466 [2022-11-21 16:11:12,808 INFO L226 Difference]: Without dead ends: 7124 [2022-11-21 16:11:12,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:11:12,816 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 206 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:12,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 60 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 16:11:12,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-21 16:11:12,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6768. [2022-11-21 16:11:12,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0704891384660855) internal successors, (7244), 6767 states have internal predecessors, (7244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:12,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7244 transitions. [2022-11-21 16:11:12,954 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7244 transitions. Word has length 808 [2022-11-21 16:11:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:12,956 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 7244 transitions. [2022-11-21 16:11:12,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7244 transitions. [2022-11-21 16:11:12,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2022-11-21 16:11:12,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:12,964 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:12,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:11:13,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:13,171 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:13,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:13,171 INFO L85 PathProgramCache]: Analyzing trace with hash -172725225, now seen corresponding path program 1 times [2022-11-21 16:11:13,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:13,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707319145] [2022-11-21 16:11:13,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:13,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 837 proven. 2 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-11-21 16:11:14,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:14,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707319145] [2022-11-21 16:11:14,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707319145] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:14,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092994439] [2022-11-21 16:11:14,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:14,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:14,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:14,753 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:11:14,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 16:11:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:15,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:11:15,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:11:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 839 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-11-21 16:11:15,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:11:15,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092994439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:15,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:11:15,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-21 16:11:15,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248628490] [2022-11-21 16:11:15,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:15,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:15,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:15,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:15,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:15,250 INFO L87 Difference]: Start difference. First operand 6768 states and 7244 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:15,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:15,888 INFO L93 Difference]: Finished difference Result 13534 states and 14498 transitions. [2022-11-21 16:11:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:15,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 810 [2022-11-21 16:11:15,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:15,901 INFO L225 Difference]: With dead ends: 13534 [2022-11-21 16:11:15,901 INFO L226 Difference]: Without dead ends: 7124 [2022-11-21 16:11:15,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:15,908 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:15,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 245 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:11:15,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-21 16:11:15,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6590. [2022-11-21 16:11:16,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0628319927151313) internal successors, (7003), 6589 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 7003 transitions. [2022-11-21 16:11:16,013 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 7003 transitions. Word has length 810 [2022-11-21 16:11:16,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:16,015 INFO L495 AbstractCegarLoop]: Abstraction has 6590 states and 7003 transitions. [2022-11-21 16:11:16,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:16,015 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 7003 transitions. [2022-11-21 16:11:16,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2022-11-21 16:11:16,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:16,024 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:16,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:11:16,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 16:11:16,236 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:16,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:16,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2108387026, now seen corresponding path program 1 times [2022-11-21 16:11:16,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:16,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251970886] [2022-11-21 16:11:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:16,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 1251 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-11-21 16:11:18,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:18,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251970886] [2022-11-21 16:11:18,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251970886] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:18,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818381014] [2022-11-21 16:11:18,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:18,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:18,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:18,274 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:11:18,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 16:11:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:18,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:11:18,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:11:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 964 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2022-11-21 16:11:19,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:11:19,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818381014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:19,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:11:19,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-21 16:11:19,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661087237] [2022-11-21 16:11:19,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:19,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:11:19,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:19,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:11:19,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:11:19,430 INFO L87 Difference]: Start difference. First operand 6590 states and 7003 transitions. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:20,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:20,530 INFO L93 Difference]: Finished difference Result 13712 states and 14593 transitions. [2022-11-21 16:11:20,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:11:20,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 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 841 [2022-11-21 16:11:20,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:20,542 INFO L225 Difference]: With dead ends: 13712 [2022-11-21 16:11:20,543 INFO L226 Difference]: Without dead ends: 7480 [2022-11-21 16:11:20,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:11:20,549 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 174 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:20,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 59 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-21 16:11:20,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2022-11-21 16:11:20,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 6590. [2022-11-21 16:11:20,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0628319927151313) internal successors, (7003), 6589 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 7003 transitions. [2022-11-21 16:11:20,652 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 7003 transitions. Word has length 841 [2022-11-21 16:11:20,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:20,653 INFO L495 AbstractCegarLoop]: Abstraction has 6590 states and 7003 transitions. [2022-11-21 16:11:20,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:20,654 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 7003 transitions. [2022-11-21 16:11:20,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2022-11-21 16:11:20,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:20,662 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:20,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:11:20,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 16:11:20,869 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:20,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:20,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1692043947, now seen corresponding path program 1 times [2022-11-21 16:11:20,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:20,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665007755] [2022-11-21 16:11:20,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:20,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 1252 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-11-21 16:11:22,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:22,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665007755] [2022-11-21 16:11:22,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665007755] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:22,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369729772] [2022-11-21 16:11:22,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:22,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:22,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:22,777 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:11:22,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 16:11:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:23,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:11:23,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:11:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 1340 proven. 537 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-11-21 16:11:25,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:11:37,977 WARN L233 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 35 DAG size of output: 31 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:11:40,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 1324 proven. 0 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-11-21 16:11:40,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369729772] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:40,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:11:40,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 13 [2022-11-21 16:11:40,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75803270] [2022-11-21 16:11:40,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:40,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:11:40,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:40,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:11:40,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=99, Unknown=1, NotChecked=0, Total=156 [2022-11-21 16:11:40,479 INFO L87 Difference]: Start difference. First operand 6590 states and 7003 transitions. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:41,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:41,548 INFO L93 Difference]: Finished difference Result 13356 states and 14227 transitions. [2022-11-21 16:11:41,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:11:41,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 842 [2022-11-21 16:11:41,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:41,561 INFO L225 Difference]: With dead ends: 13356 [2022-11-21 16:11:41,562 INFO L226 Difference]: Without dead ends: 7124 [2022-11-21 16:11:41,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1687 GetRequests, 1676 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=56, Invalid=99, Unknown=1, NotChecked=0, Total=156 [2022-11-21 16:11:41,568 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 366 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:41,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 10 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-21 16:11:41,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-21 16:11:41,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6234. [2022-11-21 16:11:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.062730627306273) internal successors, (6624), 6233 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6624 transitions. [2022-11-21 16:11:41,683 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6624 transitions. Word has length 842 [2022-11-21 16:11:41,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:41,685 INFO L495 AbstractCegarLoop]: Abstraction has 6234 states and 6624 transitions. [2022-11-21 16:11:41,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6624 transitions. [2022-11-21 16:11:41,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2022-11-21 16:11:41,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:41,694 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:41,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:11:41,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-21 16:11:41,901 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:41,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:41,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1454235833, now seen corresponding path program 1 times [2022-11-21 16:11:41,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:41,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163175836] [2022-11-21 16:11:41,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:41,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2382 backedges. 1388 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2022-11-21 16:11:42,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:42,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163175836] [2022-11-21 16:11:42,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163175836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:42,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:42,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:11:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949448532] [2022-11-21 16:11:42,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:42,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:42,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:42,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:42,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:42,823 INFO L87 Difference]: Start difference. First operand 6234 states and 6624 transitions. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:43,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:43,624 INFO L93 Difference]: Finished difference Result 12288 states and 13077 transitions. [2022-11-21 16:11:43,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:43,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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 875 [2022-11-21 16:11:43,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:43,634 INFO L225 Difference]: With dead ends: 12288 [2022-11-21 16:11:43,634 INFO L226 Difference]: Without dead ends: 6412 [2022-11-21 16:11:43,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:11:43,639 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:43,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 226 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 16:11:43,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2022-11-21 16:11:43,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 6234. [2022-11-21 16:11:43,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.0580779720840687) internal successors, (6595), 6233 states have internal predecessors, (6595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6595 transitions. [2022-11-21 16:11:43,747 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6595 transitions. Word has length 875 [2022-11-21 16:11:43,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:43,748 INFO L495 AbstractCegarLoop]: Abstraction has 6234 states and 6595 transitions. [2022-11-21 16:11:43,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6595 transitions. [2022-11-21 16:11:43,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2022-11-21 16:11:43,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:43,758 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:43,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:11:43,758 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:43,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1755066193, now seen corresponding path program 1 times [2022-11-21 16:11:43,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:43,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378014044] [2022-11-21 16:11:43,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:43,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2884 backedges. 1002 proven. 0 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2022-11-21 16:11:44,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:44,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378014044] [2022-11-21 16:11:44,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378014044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:44,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:44,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:11:44,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682894122] [2022-11-21 16:11:44,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:44,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:11:44,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:44,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:11:44,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:11:44,682 INFO L87 Difference]: Start difference. First operand 6234 states and 6595 transitions. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:45,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:45,988 INFO L93 Difference]: Finished difference Result 12082 states and 12789 transitions. [2022-11-21 16:11:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:11:45,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 6 states have internal predecessors, (323), 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 899 [2022-11-21 16:11:45,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:45,996 INFO L225 Difference]: With dead ends: 12082 [2022-11-21 16:11:45,996 INFO L226 Difference]: Without dead ends: 6156 [2022-11-21 16:11:46,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:11:46,001 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 94 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:46,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 33 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-21 16:11:46,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6156 states. [2022-11-21 16:11:46,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6156 to 6106. [2022-11-21 16:11:46,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6105 states have (on average 1.0496314496314496) internal successors, (6408), 6105 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:46,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 6408 transitions. [2022-11-21 16:11:46,107 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 6408 transitions. Word has length 899 [2022-11-21 16:11:46,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:46,108 INFO L495 AbstractCegarLoop]: Abstraction has 6106 states and 6408 transitions. [2022-11-21 16:11:46,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:46,108 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 6408 transitions. [2022-11-21 16:11:46,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2022-11-21 16:11:46,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:46,118 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:46,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:11:46,118 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:46,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:46,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1130662458, now seen corresponding path program 1 times [2022-11-21 16:11:46,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:46,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363666419] [2022-11-21 16:11:46,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:46,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 573 proven. 390 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2022-11-21 16:11:47,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:47,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363666419] [2022-11-21 16:11:47,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363666419] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:47,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731285985] [2022-11-21 16:11:47,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:47,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:47,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:47,493 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:11:47,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 16:11:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:47,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:11:47,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:11:47,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 2296 trivial. 0 not checked. [2022-11-21 16:11:47,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:11:47,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731285985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:47,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:11:47,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-21 16:11:47,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895369648] [2022-11-21 16:11:47,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:47,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:47,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:47,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:47,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:11:47,942 INFO L87 Difference]: Start difference. First operand 6106 states and 6408 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:48,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:48,614 INFO L93 Difference]: Finished difference Result 7176 states and 7498 transitions. [2022-11-21 16:11:48,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:48,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 949 [2022-11-21 16:11:48,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:48,621 INFO L225 Difference]: With dead ends: 7176 [2022-11-21 16:11:48,621 INFO L226 Difference]: Without dead ends: 7174 [2022-11-21 16:11:48,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 953 GetRequests, 948 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:11:48,623 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 150 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:48,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 11 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:11:48,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2022-11-21 16:11:48,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 5928. [2022-11-21 16:11:48,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5927 states have (on average 1.0507845453011642) internal successors, (6228), 5927 states have internal predecessors, (6228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:48,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 6228 transitions. [2022-11-21 16:11:48,728 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 6228 transitions. Word has length 949 [2022-11-21 16:11:48,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:48,729 INFO L495 AbstractCegarLoop]: Abstraction has 5928 states and 6228 transitions. [2022-11-21 16:11:48,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:48,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 6228 transitions. [2022-11-21 16:11:48,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2022-11-21 16:11:48,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:48,740 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:48,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 16:11:48,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-21 16:11:48,952 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:48,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:48,953 INFO L85 PathProgramCache]: Analyzing trace with hash 360428800, now seen corresponding path program 1 times [2022-11-21 16:11:48,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:48,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269062560] [2022-11-21 16:11:48,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:48,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:50,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2750 backedges. 999 proven. 0 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-11-21 16:11:50,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:50,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269062560] [2022-11-21 16:11:50,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269062560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:50,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:11:50,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:11:50,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915043406] [2022-11-21 16:11:50,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:50,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:11:50,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:50,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:11:50,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:11:50,341 INFO L87 Difference]: Start difference. First operand 5928 states and 6228 transitions. Second operand has 5 states, 5 states have (on average 67.4) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:51,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:51,640 INFO L93 Difference]: Finished difference Result 7810 states and 8269 transitions. [2022-11-21 16:11:51,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:11:51,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 4 states have internal predecessors, (337), 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 968 [2022-11-21 16:11:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:51,649 INFO L225 Difference]: With dead ends: 7810 [2022-11-21 16:11:51,649 INFO L226 Difference]: Without dead ends: 7758 [2022-11-21 16:11:51,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:11:51,652 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 176 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:51,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 20 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-21 16:11:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7758 states. [2022-11-21 16:11:51,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7758 to 7352. [2022-11-21 16:11:51,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7352 states, 7351 states have (on average 1.0608080533260782) internal successors, (7798), 7351 states have internal predecessors, (7798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:51,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 7798 transitions. [2022-11-21 16:11:51,782 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 7798 transitions. Word has length 968 [2022-11-21 16:11:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:51,783 INFO L495 AbstractCegarLoop]: Abstraction has 7352 states and 7798 transitions. [2022-11-21 16:11:51,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:51,783 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 7798 transitions. [2022-11-21 16:11:51,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2022-11-21 16:11:51,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:51,795 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:51,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 16:11:51,795 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:51,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:51,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1652977608, now seen corresponding path program 1 times [2022-11-21 16:11:51,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:51,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376158305] [2022-11-21 16:11:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:51,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 762 proven. 339 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-11-21 16:11:52,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:52,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376158305] [2022-11-21 16:11:52,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376158305] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:52,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937314188] [2022-11-21 16:11:52,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:52,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:52,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:52,665 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:11:52,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 16:11:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:52,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:11:52,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:11:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1101 proven. 0 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-11-21 16:11:53,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:11:53,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937314188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:53,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:11:53,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-21 16:11:53,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515757510] [2022-11-21 16:11:53,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:53,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:53,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:53,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:53,239 INFO L87 Difference]: Start difference. First operand 7352 states and 7798 transitions. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:53,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:53,917 INFO L93 Difference]: Finished difference Result 14524 states and 15415 transitions. [2022-11-21 16:11:53,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:53,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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 1001 [2022-11-21 16:11:53,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:53,925 INFO L225 Difference]: With dead ends: 14524 [2022-11-21 16:11:53,926 INFO L226 Difference]: Without dead ends: 7352 [2022-11-21 16:11:53,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 1000 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:11:53,930 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 36 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:53,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 232 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:11:53,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2022-11-21 16:11:54,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 6818. [2022-11-21 16:11:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 6817 states have (on average 1.047968314507848) internal successors, (7144), 6817 states have internal predecessors, (7144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 7144 transitions. [2022-11-21 16:11:54,059 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 7144 transitions. Word has length 1001 [2022-11-21 16:11:54,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:54,060 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 7144 transitions. [2022-11-21 16:11:54,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:54,061 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 7144 transitions. [2022-11-21 16:11:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2022-11-21 16:11:54,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:54,073 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:54,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 16:11:54,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:54,281 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:54,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:54,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1433860886, now seen corresponding path program 1 times [2022-11-21 16:11:54,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:54,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185223625] [2022-11-21 16:11:54,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:54,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:55,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3281 backedges. 1077 proven. 390 refuted. 0 times theorem prover too weak. 1814 trivial. 0 not checked. [2022-11-21 16:11:55,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:55,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185223625] [2022-11-21 16:11:55,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185223625] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:55,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068359166] [2022-11-21 16:11:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:55,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:55,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:55,489 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:11:55,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 16:11:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:55,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:11:55,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:11:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3281 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 2882 trivial. 0 not checked. [2022-11-21 16:11:55,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:11:55,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068359166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:11:55,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:11:55,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-21 16:11:55,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442864375] [2022-11-21 16:11:55,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:11:55,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:11:55,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:11:55,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:11:55,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:11:55,961 INFO L87 Difference]: Start difference. First operand 6818 states and 7144 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:56,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:11:56,621 INFO L93 Difference]: Finished difference Result 7710 states and 8052 transitions. [2022-11-21 16:11:56,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:11:56,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 1036 [2022-11-21 16:11:56,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:11:56,627 INFO L225 Difference]: With dead ends: 7710 [2022-11-21 16:11:56,628 INFO L226 Difference]: Without dead ends: 7708 [2022-11-21 16:11:56,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 1035 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:11:56,630 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 150 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:11:56,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 11 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:11:56,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2022-11-21 16:11:56,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 6640. [2022-11-21 16:11:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6640 states, 6639 states have (on average 1.0486519054074408) internal successors, (6962), 6639 states have internal predecessors, (6962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:56,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 6962 transitions. [2022-11-21 16:11:56,739 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 6962 transitions. Word has length 1036 [2022-11-21 16:11:56,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:11:56,740 INFO L495 AbstractCegarLoop]: Abstraction has 6640 states and 6962 transitions. [2022-11-21 16:11:56,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:11:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 6962 transitions. [2022-11-21 16:11:56,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2022-11-21 16:11:56,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:11:56,753 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:11:56,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-21 16:11:56,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:56,960 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:11:56,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:11:56,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1021024288, now seen corresponding path program 1 times [2022-11-21 16:11:56,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:11:56,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257763990] [2022-11-21 16:11:56,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:56,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:11:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 1280 proven. 390 refuted. 0 times theorem prover too weak. 1814 trivial. 0 not checked. [2022-11-21 16:11:58,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:11:58,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257763990] [2022-11-21 16:11:58,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257763990] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:11:58,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930330042] [2022-11-21 16:11:58,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:11:58,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:11:58,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:11:58,061 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:11:58,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-21 16:11:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:11:58,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:11:58,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:12:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 1041 proven. 0 refuted. 0 times theorem prover too weak. 2443 trivial. 0 not checked. [2022-11-21 16:12:00,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:12:00,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930330042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:00,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:12:00,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-21 16:12:00,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373661187] [2022-11-21 16:12:00,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:00,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:00,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:00,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:00,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:12:00,059 INFO L87 Difference]: Start difference. First operand 6640 states and 6962 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:00,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:12:00,732 INFO L93 Difference]: Finished difference Result 14880 states and 15564 transitions. [2022-11-21 16:12:00,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 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 1065 [2022-11-21 16:12:00,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:12:00,738 INFO L225 Difference]: With dead ends: 14880 [2022-11-21 16:12:00,739 INFO L226 Difference]: Without dead ends: 8420 [2022-11-21 16:12:00,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1069 GetRequests, 1064 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:12:00,745 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:12:00,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 52 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:12:00,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8420 states. [2022-11-21 16:12:00,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8420 to 6996. [2022-11-21 16:12:00,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6996 states, 6995 states have (on average 1.0470335954253038) internal successors, (7324), 6995 states have internal predecessors, (7324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:00,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6996 states to 6996 states and 7324 transitions. [2022-11-21 16:12:00,912 INFO L78 Accepts]: Start accepts. Automaton has 6996 states and 7324 transitions. Word has length 1065 [2022-11-21 16:12:00,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:12:00,913 INFO L495 AbstractCegarLoop]: Abstraction has 6996 states and 7324 transitions. [2022-11-21 16:12:00,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:00,913 INFO L276 IsEmpty]: Start isEmpty. Operand 6996 states and 7324 transitions. [2022-11-21 16:12:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1195 [2022-11-21 16:12:00,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:12:00,928 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:00,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-21 16:12:01,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:12:01,138 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:12:01,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1602313078, now seen corresponding path program 1 times [2022-11-21 16:12:01,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:01,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18166065] [2022-11-21 16:12:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:01,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4779 backedges. 2081 proven. 0 refuted. 0 times theorem prover too weak. 2698 trivial. 0 not checked. [2022-11-21 16:12:01,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:01,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18166065] [2022-11-21 16:12:01,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18166065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:01,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:01,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:12:01,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806238106] [2022-11-21 16:12:01,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:01,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:01,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:01,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:01,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:01,944 INFO L87 Difference]: Start difference. First operand 6996 states and 7324 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:02,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:12:02,586 INFO L93 Difference]: Finished difference Result 13990 states and 14646 transitions. [2022-11-21 16:12:02,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:02,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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 1194 [2022-11-21 16:12:02,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:12:02,592 INFO L225 Difference]: With dead ends: 13990 [2022-11-21 16:12:02,592 INFO L226 Difference]: Without dead ends: 7174 [2022-11-21 16:12:02,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:02,595 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 71 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:12:02,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 239 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:12:02,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2022-11-21 16:12:02,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 6818. [2022-11-21 16:12:02,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 6817 states have (on average 1.0469414698547748) internal successors, (7137), 6817 states have internal predecessors, (7137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 7137 transitions. [2022-11-21 16:12:02,674 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 7137 transitions. Word has length 1194 [2022-11-21 16:12:02,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:12:02,674 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 7137 transitions. [2022-11-21 16:12:02,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 7137 transitions. [2022-11-21 16:12:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1401 [2022-11-21 16:12:02,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:12:02,690 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:02,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-21 16:12:02,690 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:12:02,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:02,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1320783353, now seen corresponding path program 1 times [2022-11-21 16:12:02,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:02,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262035276] [2022-11-21 16:12:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:02,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 6065 backedges. 1489 proven. 0 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-11-21 16:12:03,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:03,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262035276] [2022-11-21 16:12:03,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262035276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:03,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:03,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:12:03,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685864979] [2022-11-21 16:12:03,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:03,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:12:03,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:03,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:12:03,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:12:03,735 INFO L87 Difference]: Start difference. First operand 6818 states and 7137 transitions. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:04,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:12:04,986 INFO L93 Difference]: Finished difference Result 13480 states and 14117 transitions. [2022-11-21 16:12:04,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:12:04,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 4 states have internal predecessors, (339), 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 1400 [2022-11-21 16:12:04,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:12:04,992 INFO L225 Difference]: With dead ends: 13480 [2022-11-21 16:12:04,992 INFO L226 Difference]: Without dead ends: 6818 [2022-11-21 16:12:04,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:12:04,996 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 105 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:12:04,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 23 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-21 16:12:05,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6818 states. [2022-11-21 16:12:05,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6818 to 6818. [2022-11-21 16:12:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 6817 states have (on average 1.0454745489218131) internal successors, (7127), 6817 states have internal predecessors, (7127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:05,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 7127 transitions. [2022-11-21 16:12:05,077 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 7127 transitions. Word has length 1400 [2022-11-21 16:12:05,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:12:05,078 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 7127 transitions. [2022-11-21 16:12:05,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:05,078 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 7127 transitions. [2022-11-21 16:12:05,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1519 [2022-11-21 16:12:05,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:12:05,091 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:05,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-21 16:12:05,091 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:12:05,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:05,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1702784966, now seen corresponding path program 1 times [2022-11-21 16:12:05,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:05,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679493840] [2022-11-21 16:12:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:05,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:06,113 INFO L134 CoverageAnalysis]: Checked inductivity of 7302 backedges. 906 proven. 819 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2022-11-21 16:12:06,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:06,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679493840] [2022-11-21 16:12:06,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679493840] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:12:06,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571655061] [2022-11-21 16:12:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:06,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:12:06,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:12:06,117 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:12:06,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-21 16:12:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:06,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:12:06,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:12:06,875 INFO L134 CoverageAnalysis]: Checked inductivity of 7302 backedges. 1725 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2022-11-21 16:12:06,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:12:06,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571655061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:06,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:12:06,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-21 16:12:06,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91573612] [2022-11-21 16:12:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:06,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:06,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:06,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:06,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:12:06,879 INFO L87 Difference]: Start difference. First operand 6818 states and 7127 transitions. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:07,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:12:07,559 INFO L93 Difference]: Finished difference Result 14702 states and 15332 transitions. [2022-11-21 16:12:07,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:07,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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 1518 [2022-11-21 16:12:07,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:12:07,564 INFO L225 Difference]: With dead ends: 14702 [2022-11-21 16:12:07,564 INFO L226 Difference]: Without dead ends: 5394 [2022-11-21 16:12:07,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1521 GetRequests, 1517 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:12:07,568 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:12:07,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 233 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:12:07,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5394 states. [2022-11-21 16:12:07,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5394 to 4860. [2022-11-21 16:12:07,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4860 states, 4859 states have (on average 1.0310763531590863) internal successors, (5010), 4859 states have internal predecessors, (5010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4860 states to 4860 states and 5010 transitions. [2022-11-21 16:12:07,649 INFO L78 Accepts]: Start accepts. Automaton has 4860 states and 5010 transitions. Word has length 1518 [2022-11-21 16:12:07,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:12:07,650 INFO L495 AbstractCegarLoop]: Abstraction has 4860 states and 5010 transitions. [2022-11-21 16:12:07,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:07,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4860 states and 5010 transitions. [2022-11-21 16:12:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1762 [2022-11-21 16:12:07,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:12:07,686 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:07,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-21 16:12:07,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-21 16:12:07,892 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:12:07,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2098800823, now seen corresponding path program 1 times [2022-11-21 16:12:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:07,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371270702] [2022-11-21 16:12:07,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:07,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 10019 backedges. 3218 proven. 0 refuted. 0 times theorem prover too weak. 6801 trivial. 0 not checked. [2022-11-21 16:12:09,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:09,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371270702] [2022-11-21 16:12:09,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371270702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:09,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:09,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:12:09,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297480814] [2022-11-21 16:12:09,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:09,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:12:09,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:09,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:12:09,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:12:09,265 INFO L87 Difference]: Start difference. First operand 4860 states and 5010 transitions. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:09,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:12:09,943 INFO L93 Difference]: Finished difference Result 9562 states and 9863 transitions. [2022-11-21 16:12:09,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:12:09,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 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 1761 [2022-11-21 16:12:09,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:12:09,949 INFO L225 Difference]: With dead ends: 9562 [2022-11-21 16:12:09,950 INFO L226 Difference]: Without dead ends: 5038 [2022-11-21 16:12:09,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:12:09,953 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 20 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:12:09,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 17 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 16:12:09,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5038 states. [2022-11-21 16:12:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5038 to 4860. [2022-11-21 16:12:10,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4860 states, 4859 states have (on average 1.0296357275159498) internal successors, (5003), 4859 states have internal predecessors, (5003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:10,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4860 states to 4860 states and 5003 transitions. [2022-11-21 16:12:10,023 INFO L78 Accepts]: Start accepts. Automaton has 4860 states and 5003 transitions. Word has length 1761 [2022-11-21 16:12:10,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:12:10,024 INFO L495 AbstractCegarLoop]: Abstraction has 4860 states and 5003 transitions. [2022-11-21 16:12:10,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand 4860 states and 5003 transitions. [2022-11-21 16:12:10,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1840 [2022-11-21 16:12:10,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:12:10,041 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:10,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-21 16:12:10,041 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:12:10,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:10,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1181327325, now seen corresponding path program 1 times [2022-11-21 16:12:10,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:10,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288350572] [2022-11-21 16:12:10,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:10,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 11219 backedges. 6341 proven. 0 refuted. 0 times theorem prover too weak. 4878 trivial. 0 not checked. [2022-11-21 16:12:11,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:11,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288350572] [2022-11-21 16:12:11,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288350572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:11,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:11,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:12:11,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17886285] [2022-11-21 16:12:11,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:11,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:11,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:11,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:11,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:11,036 INFO L87 Difference]: Start difference. First operand 4860 states and 5003 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:11,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:12:11,578 INFO L93 Difference]: Finished difference Result 8954 states and 9214 transitions. [2022-11-21 16:12:11,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:11,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 1839 [2022-11-21 16:12:11,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:12:11,580 INFO L225 Difference]: With dead ends: 8954 [2022-11-21 16:12:11,580 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:12:11,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:11,584 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:12:11,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 201 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:12:11,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:12:11,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:12:11,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:11,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:12:11,585 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1839 [2022-11-21 16:12:11,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:12:11,586 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:12:11,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:11,586 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:12:11,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:12:11,589 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:12:11,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-21 16:12:11,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 16:12:23,927 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-11-21 16:12:23,927 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-11-21 16:12:23,928 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-11-21 16:12:23,929 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-11-21 16:12:23,929 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-11-21 16:12:23,929 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-11-21 16:12:23,929 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-11-21 16:12:23,929 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,929 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,930 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,930 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-11-21 16:12:23,930 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-11-21 16:12:23,930 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-11-21 16:12:23,930 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-21 16:12:23,930 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-11-21 16:12:23,930 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-11-21 16:12:23,931 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-11-21 16:12:23,931 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-11-21 16:12:23,931 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-11-21 16:12:23,931 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,931 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,931 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,931 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-11-21 16:12:23,932 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-11-21 16:12:23,932 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-11-21 16:12:23,932 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-11-21 16:12:23,932 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-11-21 16:12:23,932 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-11-21 16:12:23,932 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-11-21 16:12:23,933 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,933 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,933 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,933 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-11-21 16:12:23,933 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-11-21 16:12:23,933 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-11-21 16:12:23,933 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-11-21 16:12:23,934 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-11-21 16:12:23,934 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-11-21 16:12:23,934 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-11-21 16:12:23,934 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-11-21 16:12:23,934 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,934 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,935 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,935 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-11-21 16:12:23,935 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-11-21 16:12:23,935 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-11-21 16:12:23,935 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-11-21 16:12:23,935 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-11-21 16:12:23,935 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-11-21 16:12:23,936 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-11-21 16:12:23,936 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-11-21 16:12:23,936 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,936 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,936 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,936 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-11-21 16:12:23,936 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,937 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,938 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-11-21 16:12:23,938 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-11-21 16:12:23,938 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-11-21 16:12:23,938 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-11-21 16:12:23,938 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-11-21 16:12:23,938 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-11-21 16:12:23,938 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-11-21 16:12:23,938 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-11-21 16:12:23,939 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-11-21 16:12:23,940 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-11-21 16:12:23,940 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-11-21 16:12:23,940 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,940 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,940 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,940 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-11-21 16:12:23,940 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-11-21 16:12:23,941 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-11-21 16:12:23,941 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-11-21 16:12:23,941 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-11-21 16:12:23,941 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-11-21 16:12:23,941 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-11-21 16:12:23,941 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-11-21 16:12:23,941 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,942 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,942 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,942 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-11-21 16:12:23,942 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-11-21 16:12:23,942 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-11-21 16:12:23,942 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 16:12:23,942 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-11-21 16:12:23,942 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 170) no Hoare annotation was computed. [2022-11-21 16:12:23,942 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-11-21 16:12:23,943 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-11-21 16:12:23,944 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,945 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,945 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,945 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-11-21 16:12:23,945 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-11-21 16:12:23,945 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-11-21 16:12:23,945 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-11-21 16:12:23,945 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-21 16:12:23,946 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-11-21 16:12:23,946 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-11-21 16:12:23,946 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-11-21 16:12:23,946 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,946 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,946 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,946 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-11-21 16:12:23,947 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-11-21 16:12:23,947 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-11-21 16:12:23,947 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-11-21 16:12:23,947 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-11-21 16:12:23,947 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-11-21 16:12:23,947 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-11-21 16:12:23,947 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-11-21 16:12:23,948 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,948 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,948 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,948 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-11-21 16:12:23,948 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-11-21 16:12:23,948 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-11-21 16:12:23,948 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-11-21 16:12:23,948 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-11-21 16:12:23,949 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-11-21 16:12:23,949 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-11-21 16:12:23,949 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-11-21 16:12:23,949 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,949 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,949 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-11-21 16:12:23,949 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-11-21 16:12:23,950 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-11-21 16:12:23,950 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-11-21 16:12:23,950 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-11-21 16:12:23,950 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-11-21 16:12:23,950 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-11-21 16:12:23,950 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-11-21 16:12:23,950 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,951 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,952 INFO L895 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse23 (div (* ~a12~0 9) 10))) (let ((.cse22 (div (+ (- 562768) .cse23) 5)) (.cse24 (+ ~a12~0 43))) (let ((.cse8 (<= 9 ~a21~0)) (.cse11 (<= ~a21~0 9)) (.cse7 (<= .cse24 0)) (.cse5 (<= ~a15~0 7)) (.cse10 (<= 6 ~a15~0)) (.cse2 (<= ~a15~0 8)) (.cse15 (<= ~a21~0 6)) (.cse16 (< 0 .cse24)) (.cse1 (<= 7 ~a21~0)) (.cse3 (<= ~a21~0 7)) (.cse13 (<= 9 ~a15~0)) (.cse19 (<= ~a12~0 225871)) (.cse17 (<= ~a12~0 73282)) (.cse6 (<= 8 ~a21~0)) (.cse20 (<= ~a21~0 8)) (.cse4 (<= 0 (+ ~a12~0 42))) (.cse21 (= ~a15~0 8)) (.cse14 (<= 7 ~a15~0)) (.cse9 (or (= (mod (+ 2 .cse23) 5) 0) (< (+ .cse22 43) 0))) (.cse0 (= ~a24~0 1)) (.cse12 (< (+ .cse22 42) 0)) (.cse18 (<= 10 ~a21~0))) (or (and (<= ~a12~0 11) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= ~a12~0 76) .cse5 .cse3 .cse4) (and .cse0 .cse6 (not .cse7) (not (< 80 ~a12~0))) (and .cse8 .cse9 .cse10 .cse11 .cse0 .cse5 .cse12) (and .cse9 .cse0 .cse1 .cse13 .cse12 .cse4) (and .cse9 .cse0 (= 5 ~a15~0) (= ~a21~0 6) .cse12 (<= 526013 ~a12~0)) (and .cse14 .cse9 .cse0 .cse2 .cse15 .cse12 .cse16) (and .cse8 .cse11 .cse7 .cse0 .cse2) (and .cse17 .cse0 .cse18 .cse4) (and .cse14 .cse9 .cse0 .cse5 .cse12) (and .cse7 .cse2 .cse15 .cse5) (and .cse10 .cse0 .cse2 .cse15 .cse16 .cse19) (and .cse0 .cse13 (exists ((v_~a12~0_439 Int)) (and (<= (+ 558346 ~a12~0) (div (* 9 v_~a12~0_439) 10)) (<= v_~a12~0_439 73282) (< 80 v_~a12~0_439))) .cse6 .cse20) (and .cse0 .cse1 .cse3 (<= (+ 49 ~a12~0) 0) .cse21) (and .cse0 .cse13 .cse4 .cse19) (and .cse17 .cse0 .cse6 .cse20 .cse4 .cse21) (and .cse14 .cse9 .cse0 .cse12 .cse18))))) [2022-11-21 16:12:23,952 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-11-21 16:12:23,953 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-11-21 16:12:23,953 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-11-21 16:12:23,953 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-11-21 16:12:23,953 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-11-21 16:12:23,953 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-11-21 16:12:23,953 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-11-21 16:12:23,953 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-11-21 16:12:23,954 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,954 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,954 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-11-21 16:12:23,954 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-11-21 16:12:23,954 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-11-21 16:12:23,954 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-11-21 16:12:23,954 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-11-21 16:12:23,955 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-11-21 16:12:23,955 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-11-21 16:12:23,955 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-11-21 16:12:23,955 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,955 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,955 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 16:12:23,955 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-11-21 16:12:23,956 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-11-21 16:12:23,956 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-11-21 16:12:23,956 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-11-21 16:12:23,956 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-11-21 16:12:23,956 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-11-21 16:12:23,956 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,956 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,957 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-11-21 16:12:23,957 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,957 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-11-21 16:12:23,957 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse23 (div (* ~a12~0 9) 10))) (let ((.cse22 (div (+ (- 562768) .cse23) 5)) (.cse24 (+ ~a12~0 43))) (let ((.cse8 (<= 9 ~a21~0)) (.cse11 (<= ~a21~0 9)) (.cse7 (<= .cse24 0)) (.cse5 (<= ~a15~0 7)) (.cse10 (<= 6 ~a15~0)) (.cse2 (<= ~a15~0 8)) (.cse15 (<= ~a21~0 6)) (.cse16 (< 0 .cse24)) (.cse1 (<= 7 ~a21~0)) (.cse3 (<= ~a21~0 7)) (.cse13 (<= 9 ~a15~0)) (.cse19 (<= ~a12~0 225871)) (.cse17 (<= ~a12~0 73282)) (.cse6 (<= 8 ~a21~0)) (.cse20 (<= ~a21~0 8)) (.cse4 (<= 0 (+ ~a12~0 42))) (.cse21 (= ~a15~0 8)) (.cse14 (<= 7 ~a15~0)) (.cse9 (or (= (mod (+ 2 .cse23) 5) 0) (< (+ .cse22 43) 0))) (.cse0 (= ~a24~0 1)) (.cse12 (< (+ .cse22 42) 0)) (.cse18 (<= 10 ~a21~0))) (or (and (<= ~a12~0 11) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= ~a12~0 76) .cse5 .cse3 .cse4) (and .cse0 .cse6 (not .cse7) (not (< 80 ~a12~0))) (and .cse8 .cse9 .cse10 .cse11 .cse0 .cse5 .cse12) (and .cse9 .cse0 .cse1 .cse13 .cse12 .cse4) (and .cse9 .cse0 (= 5 ~a15~0) (= ~a21~0 6) .cse12 (<= 526013 ~a12~0)) (and .cse14 .cse9 .cse0 .cse2 .cse15 .cse12 .cse16) (and .cse8 .cse11 .cse7 .cse0 .cse2) (and .cse17 .cse0 .cse18 .cse4) (and .cse14 .cse9 .cse0 .cse5 .cse12) (and .cse7 .cse2 .cse15 .cse5) (and .cse10 .cse0 .cse2 .cse15 .cse16 .cse19) (and .cse0 .cse13 (exists ((v_~a12~0_439 Int)) (and (<= (+ 558346 ~a12~0) (div (* 9 v_~a12~0_439) 10)) (<= v_~a12~0_439 73282) (< 80 v_~a12~0_439))) .cse6 .cse20) (and .cse0 .cse1 .cse3 (<= (+ 49 ~a12~0) 0) .cse21) (and .cse0 .cse13 .cse4 .cse19) (and .cse17 .cse0 .cse6 .cse20 .cse4 .cse21) (and .cse14 .cse9 .cse0 .cse12 .cse18))))) [2022-11-21 16:12:23,958 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-11-21 16:12:23,958 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-11-21 16:12:23,958 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-11-21 16:12:23,958 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-11-21 16:12:23,958 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-21 16:12:23,958 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-11-21 16:12:23,959 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-11-21 16:12:23,959 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-11-21 16:12:23,959 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-11-21 16:12:23,959 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,959 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,959 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 16:12:23,959 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-11-21 16:12:23,959 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-11-21 16:12:23,960 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-11-21 16:12:23,960 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-21 16:12:23,963 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:23,965 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:12:23,975 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:23,976 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:23,976 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:23,986 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:23,987 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:23,987 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:23,991 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,005 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,005 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,007 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,007 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,008 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:12:24 BoogieIcfgContainer [2022-11-21 16:12:24,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:12:24,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:12:24,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:12:24,011 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:12:24,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:10:41" (3/4) ... [2022-11-21 16:12:24,014 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:12:24,050 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 16:12:24,059 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 16:12:24,060 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:12:24,061 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:12:24,087 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) && 0 <= a12 + 42) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || (((a24 == 1 && 8 <= a21) && !(a12 + 43 <= 0)) && !(80 < a12))) || ((((((9 <= a21 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && 6 <= a15) && a21 <= 9) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 <= a12 + 42)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 5 == a15) && a21 == 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 526013 <= a12)) || ((((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 8) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a12 <= 73282 && a24 == 1) && 10 <= a21) && 0 <= a12 + 42)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || (((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 <= 225871)) || ((((a24 == 1 && 9 <= a15) && (\exists v_~a12~0_439 : int :: (558346 + a12 <= 9 * v_~a12~0_439 / 10 && v_~a12~0_439 <= 73282) && 80 < v_~a12~0_439)) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 10 <= a21) [2022-11-21 16:12:24,090 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) && 0 <= a12 + 42) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || (((a24 == 1 && 8 <= a21) && !(a12 + 43 <= 0)) && !(80 < a12))) || ((((((9 <= a21 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && 6 <= a15) && a21 <= 9) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 <= a12 + 42)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 5 == a15) && a21 == 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 526013 <= a12)) || ((((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 8) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a12 <= 73282 && a24 == 1) && 10 <= a21) && 0 <= a12 + 42)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || (((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 <= 225871)) || ((((a24 == 1 && 9 <= a15) && (\exists v_~a12~0_439 : int :: (558346 + a12 <= 9 * v_~a12~0_439 / 10 && v_~a12~0_439 <= 73282) && 80 < v_~a12~0_439)) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 10 <= a21) [2022-11-21 16:12:24,202 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:12:24,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:12:24,204 INFO L158 Benchmark]: Toolchain (without parser) took 105394.95ms. Allocated memory was 146.8MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 113.4MB in the beginning and 1.1GB in the end (delta: -957.5MB). Peak memory consumption was 201.7MB. Max. memory is 16.1GB. [2022-11-21 16:12:24,204 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:12:24,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 734.94ms. Allocated memory is still 146.8MB. Free memory was 113.4MB in the beginning and 80.9MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-21 16:12:24,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.25ms. Allocated memory is still 146.8MB. Free memory was 80.9MB in the beginning and 70.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:12:24,207 INFO L158 Benchmark]: Boogie Preprocessor took 114.89ms. Allocated memory is still 146.8MB. Free memory was 70.9MB in the beginning and 65.1MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:12:24,209 INFO L158 Benchmark]: RCFGBuilder took 1627.76ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 65.1MB in the beginning and 127.6MB in the end (delta: -62.5MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2022-11-21 16:12:24,215 INFO L158 Benchmark]: TraceAbstraction took 102603.91ms. Allocated memory was 186.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 126.6MB in the beginning and 1.1GB in the end (delta: -956.9MB). Peak memory consumption was 822.5MB. Max. memory is 16.1GB. [2022-11-21 16:12:24,215 INFO L158 Benchmark]: Witness Printer took 192.71ms. Allocated memory is still 1.3GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:12:24,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 734.94ms. Allocated memory is still 146.8MB. Free memory was 113.4MB in the beginning and 80.9MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.25ms. Allocated memory is still 146.8MB. Free memory was 80.9MB in the beginning and 70.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.89ms. Allocated memory is still 146.8MB. Free memory was 70.9MB in the beginning and 65.1MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1627.76ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 65.1MB in the beginning and 127.6MB in the end (delta: -62.5MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * TraceAbstraction took 102603.91ms. Allocated memory was 186.6MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 126.6MB in the beginning and 1.1GB in the end (delta: -956.9MB). Peak memory consumption was 822.5MB. Max. memory is 16.1GB. * Witness Printer took 192.71ms. Allocated memory is still 1.3GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] * 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: 170]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 102.5s, OverallIterations: 30, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 26.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3584 SdHoareTripleChecker+Valid, 23.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3584 mSDsluCounter, 3106 SdHoareTripleChecker+Invalid, 19.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 195 mSDsCounter, 1684 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17436 IncrementalHoareTripleChecker+Invalid, 19120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1684 mSolverCounterUnsat, 2911 mSDtfsCounter, 17436 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12871 GetRequests, 12773 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7352occurred in iteration=22, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 30 MinimizatonAttempts, 11670 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 98 NumberOfFragments, 1053 HoareAnnotationTreeSize, 3 FomulaSimplifications, 37774 FormulaSimplificationTreeSizeReduction, 5.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 92128 FormulaSimplificationTreeSizeReductionInter, 7.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 50.0s InterpolantComputationTime, 35270 NumberOfCodeBlocks, 35270 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 36707 ConstructedInterpolants, 222 QuantifiedInterpolants, 131829 SizeOfPredicates, 3 NumberOfNonLiveVariables, 14148 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 46 InterpolantComputations, 29 PerfectInterpolantSequences, 111704/115554 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: 30]: Loop Invariant [2022-11-21 16:12:24,234 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,241 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,241 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,243 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,243 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,243 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] Derived loop invariant: ((((((((((((((((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) && 0 <= a12 + 42) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || (((a24 == 1 && 8 <= a21) && !(a12 + 43 <= 0)) && !(80 < a12))) || ((((((9 <= a21 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && 6 <= a15) && a21 <= 9) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 <= a12 + 42)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 5 == a15) && a21 == 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 526013 <= a12)) || ((((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 8) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a12 <= 73282 && a24 == 1) && 10 <= a21) && 0 <= a12 + 42)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || (((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 <= 225871)) || ((((a24 == 1 && 9 <= a15) && (\exists v_~a12~0_439 : int :: (558346 + a12 <= 9 * v_~a12~0_439 / 10 && v_~a12~0_439 <= 73282) && 80 < v_~a12~0_439)) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 10 <= a21) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant [2022-11-21 16:12:24,245 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,245 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,245 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,247 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,255 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-11-21 16:12:24,256 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] Derived loop invariant: ((((((((((((((((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) && 0 <= a12 + 42) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || (((a24 == 1 && 8 <= a21) && !(a12 + 43 <= 0)) && !(80 < a12))) || ((((((9 <= a21 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && 6 <= a15) && a21 <= 9) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 <= a12 + 42)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 5 == a15) && a21 == 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 526013 <= a12)) || ((((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 8) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a12 <= 73282 && a24 == 1) && 10 <= a21) && 0 <= a12 + 42)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || (((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 <= 225871)) || ((((a24 == 1 && 9 <= a15) && (\exists v_~a12~0_439 : int :: (558346 + a12 <= 9 * v_~a12~0_439 / 10 && v_~a12~0_439 <= 73282) && 80 < v_~a12~0_439)) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 10 <= a21) RESULT: Ultimate proved your program to be correct! [2022-11-21 16:12:24,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_454bd6ff-b7d1-4a83-b2b9-86eb1fdc1e5a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE