./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label48.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label48.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1479ddd90ec2fcde77d063083da596ee818d8098bb47b0581d7cfb4606042d51 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:03:10,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:03:10,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:03:10,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:03:10,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:03:10,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:03:10,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:03:10,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:03:10,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:03:11,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:03:11,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:03:11,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:03:11,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:03:11,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:03:11,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:03:11,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:03:11,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:03:11,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:03:11,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:03:11,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:03:11,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:03:11,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:03:11,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:03:11,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:03:11,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:03:11,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:03:11,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:03:11,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:03:11,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:03:11,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:03:11,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:03:11,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:03:11,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:03:11,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:03:11,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:03:11,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:03:11,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:03:11,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:03:11,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:03:11,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:03:11,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:03:11,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:03:11,087 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:03:11,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:03:11,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:03:11,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:03:11,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:03:11,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:03:11,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:03:11,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:03:11,090 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:03:11,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:03:11,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:03:11,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:03:11,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:03:11,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:03:11,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:03:11,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:03:11,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:03:11,092 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:03:11,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:03:11,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:03:11,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:03:11,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:03:11,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:03:11,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:03:11,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:03:11,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:03:11,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:03:11,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:03:11,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:03:11,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:03:11,095 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:03:11,095 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:03:11,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:03:11,095 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_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1479ddd90ec2fcde77d063083da596ee818d8098bb47b0581d7cfb4606042d51 [2022-11-18 20:03:11,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:03:11,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:03:11,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:03:11,411 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:03:11,412 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:03:11,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/eca-rers2012/Problem01_label48.c [2022-11-18 20:03:11,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/data/14790e09f/a9a3e73103474398ba12677a9e14852c/FLAGff987a0bb [2022-11-18 20:03:12,003 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:03:12,004 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/sv-benchmarks/c/eca-rers2012/Problem01_label48.c [2022-11-18 20:03:12,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/data/14790e09f/a9a3e73103474398ba12677a9e14852c/FLAGff987a0bb [2022-11-18 20:03:12,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/data/14790e09f/a9a3e73103474398ba12677a9e14852c [2022-11-18 20:03:12,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:03:12,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:03:12,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:03:12,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:03:12,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:03:12,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:12,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8d871c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12, skipping insertion in model container [2022-11-18 20:03:12,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:12,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:03:12,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:03:12,772 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/sv-benchmarks/c/eca-rers2012/Problem01_label48.c[20593,20606] [2022-11-18 20:03:12,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:03:12,813 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:03:12,900 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/sv-benchmarks/c/eca-rers2012/Problem01_label48.c[20593,20606] [2022-11-18 20:03:12,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:03:12,921 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:03:12,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12 WrapperNode [2022-11-18 20:03:12,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:03:12,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:03:12,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:03:12,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:03:12,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:12,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,005 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2022-11-18 20:03:13,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:03:13,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:03:13,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:03:13,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:03:13,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:03:13,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:03:13,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:03:13,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:03:13,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (1/1) ... [2022-11-18 20:03:13,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:03:13,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:13,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:03:13,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:03:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:03:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:03:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:03:13,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:03:13,306 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:03:13,310 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:03:14,558 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:03:14,572 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:03:14,572 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:03:14,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:03:14 BoogieIcfgContainer [2022-11-18 20:03:14,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:03:14,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:03:14,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:03:14,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:03:14,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:03:12" (1/3) ... [2022-11-18 20:03:14,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20648912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:03:14, skipping insertion in model container [2022-11-18 20:03:14,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:12" (2/3) ... [2022-11-18 20:03:14,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20648912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:03:14, skipping insertion in model container [2022-11-18 20:03:14,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:03:14" (3/3) ... [2022-11-18 20:03:14,587 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label48.c [2022-11-18 20:03:14,607 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:03:14,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:03:14,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:03:14,707 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;@1376eff5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:03:14,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:03:14,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:14,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-18 20:03:14,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:14,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:14,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:14,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:14,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1763883850, now seen corresponding path program 1 times [2022-11-18 20:03:14,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:14,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036873881] [2022-11-18 20:03:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:14,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:03:15,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:15,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036873881] [2022-11-18 20:03:15,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036873881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:15,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:15,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:03:15,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429793200] [2022-11-18 20:03:15,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:15,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:03:15,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:15,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:03:15,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:03:15,435 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:16,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:16,214 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2022-11-18 20:03:16,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:03:16,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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 121 [2022-11-18 20:03:16,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:16,231 INFO L225 Difference]: With dead ends: 528 [2022-11-18 20:03:16,232 INFO L226 Difference]: Without dead ends: 266 [2022-11-18 20:03:16,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:03:16,239 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 51 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:16,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 84 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:03:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-18 20:03:16,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-11-18 20:03:16,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:16,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2022-11-18 20:03:16,293 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 121 [2022-11-18 20:03:16,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:16,294 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2022-11-18 20:03:16,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2022-11-18 20:03:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-18 20:03:16,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:16,299 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:16,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:03:16,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:16,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:16,301 INFO L85 PathProgramCache]: Analyzing trace with hash 982355587, now seen corresponding path program 1 times [2022-11-18 20:03:16,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:16,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304755006] [2022-11-18 20:03:16,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:16,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:16,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:03:16,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:16,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304755006] [2022-11-18 20:03:16,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304755006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:16,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:16,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:03:16,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054355575] [2022-11-18 20:03:16,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:16,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:03:16,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:16,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:03:16,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:03:16,479 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:16,998 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2022-11-18 20:03:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:03:16,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 127 [2022-11-18 20:03:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:17,001 INFO L225 Difference]: With dead ends: 792 [2022-11-18 20:03:17,001 INFO L226 Difference]: Without dead ends: 528 [2022-11-18 20:03:17,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:03:17,004 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:17,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:03:17,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-11-18 20:03:17,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-11-18 20:03:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3453510436432639) internal successors, (709), 527 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:17,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2022-11-18 20:03:17,073 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 127 [2022-11-18 20:03:17,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:17,074 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2022-11-18 20:03:17,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:17,074 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2022-11-18 20:03:17,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-18 20:03:17,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:17,080 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:17,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:03:17,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:17,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:17,081 INFO L85 PathProgramCache]: Analyzing trace with hash -569986173, now seen corresponding path program 1 times [2022-11-18 20:03:17,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:17,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434457184] [2022-11-18 20:03:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:17,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:17,620 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:03:17,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:17,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434457184] [2022-11-18 20:03:17,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434457184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:17,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:17,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:03:17,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420367308] [2022-11-18 20:03:17,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:17,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:03:17,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:17,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:03:17,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:03:17,627 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:18,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:18,370 INFO L93 Difference]: Finished difference Result 1411 states and 1882 transitions. [2022-11-18 20:03:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:03:18,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2022-11-18 20:03:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:18,375 INFO L225 Difference]: With dead ends: 1411 [2022-11-18 20:03:18,375 INFO L226 Difference]: Without dead ends: 790 [2022-11-18 20:03:18,377 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 [2022-11-18 20:03:18,378 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 130 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:18,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 81 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:03:18,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-11-18 20:03:18,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2022-11-18 20:03:18,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.1634980988593155) internal successors, (918), 789 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:18,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 918 transitions. [2022-11-18 20:03:18,405 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 918 transitions. Word has length 128 [2022-11-18 20:03:18,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:18,406 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 918 transitions. [2022-11-18 20:03:18,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:18,406 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 918 transitions. [2022-11-18 20:03:18,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-18 20:03:18,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:18,412 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:18,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:03:18,413 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:18,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:18,413 INFO L85 PathProgramCache]: Analyzing trace with hash -866278320, now seen corresponding path program 1 times [2022-11-18 20:03:18,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:18,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258440499] [2022-11-18 20:03:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:18,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:03:18,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:18,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258440499] [2022-11-18 20:03:18,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258440499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:18,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:18,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:03:18,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35961221] [2022-11-18 20:03:18,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:18,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:03:18,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:18,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:03:18,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:03:18,629 INFO L87 Difference]: Start difference. First operand 790 states and 918 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:19,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:19,029 INFO L93 Difference]: Finished difference Result 1578 states and 1859 transitions. [2022-11-18 20:03:19,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:03:19,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 133 [2022-11-18 20:03:19,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:19,034 INFO L225 Difference]: With dead ends: 1578 [2022-11-18 20:03:19,034 INFO L226 Difference]: Without dead ends: 921 [2022-11-18 20:03:19,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:03:19,048 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:19,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 45 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:03:19,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-11-18 20:03:19,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2022-11-18 20:03:19,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.1532608695652173) internal successors, (1061), 920 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1061 transitions. [2022-11-18 20:03:19,073 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1061 transitions. Word has length 133 [2022-11-18 20:03:19,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:19,073 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1061 transitions. [2022-11-18 20:03:19,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:19,074 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1061 transitions. [2022-11-18 20:03:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-18 20:03:19,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:19,083 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:19,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:03:19,084 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:19,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:19,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1513060814, now seen corresponding path program 1 times [2022-11-18 20:03:19,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:19,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403386151] [2022-11-18 20:03:19,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:19,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 20:03:19,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:19,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403386151] [2022-11-18 20:03:19,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403386151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:19,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:19,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:03:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701819794] [2022-11-18 20:03:19,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:19,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:03:19,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:19,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:03:19,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:03:19,238 INFO L87 Difference]: Start difference. First operand 921 states and 1061 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:19,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:19,724 INFO L93 Difference]: Finished difference Result 2364 states and 2732 transitions. [2022-11-18 20:03:19,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:03:19,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 142 [2022-11-18 20:03:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:19,732 INFO L225 Difference]: With dead ends: 2364 [2022-11-18 20:03:19,733 INFO L226 Difference]: Without dead ends: 1576 [2022-11-18 20:03:19,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:03:19,740 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:19,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 19 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:03:19,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-11-18 20:03:19,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1183. [2022-11-18 20:03:19,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.1505922165820643) internal successors, (1360), 1182 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:19,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1360 transitions. [2022-11-18 20:03:19,778 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1360 transitions. Word has length 142 [2022-11-18 20:03:19,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:19,779 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1360 transitions. [2022-11-18 20:03:19,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:19,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1360 transitions. [2022-11-18 20:03:19,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-18 20:03:19,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:19,786 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:19,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:03:19,787 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:19,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1611413025, now seen corresponding path program 1 times [2022-11-18 20:03:19,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:19,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885124764] [2022-11-18 20:03:19,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:19,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:03:20,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:20,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885124764] [2022-11-18 20:03:20,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885124764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:20,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:20,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:03:20,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58055033] [2022-11-18 20:03:20,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:20,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:03:20,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:20,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:03:20,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:03:20,012 INFO L87 Difference]: Start difference. First operand 1183 states and 1360 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:20,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:20,694 INFO L93 Difference]: Finished difference Result 2495 states and 2925 transitions. [2022-11-18 20:03:20,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:03:20,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 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 148 [2022-11-18 20:03:20,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:20,700 INFO L225 Difference]: With dead ends: 2495 [2022-11-18 20:03:20,700 INFO L226 Difference]: Without dead ends: 1445 [2022-11-18 20:03:20,701 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 [2022-11-18 20:03:20,703 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 263 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:20,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 34 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:03:20,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2022-11-18 20:03:20,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2022-11-18 20:03:20,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.144736842105263) internal successors, (1653), 1444 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:20,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1653 transitions. [2022-11-18 20:03:20,737 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1653 transitions. Word has length 148 [2022-11-18 20:03:20,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:20,738 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1653 transitions. [2022-11-18 20:03:20,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:20,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1653 transitions. [2022-11-18 20:03:20,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-18 20:03:20,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:20,742 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:20,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:03:20,743 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:20,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:20,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1437264732, now seen corresponding path program 1 times [2022-11-18 20:03:20,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:20,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109384833] [2022-11-18 20:03:20,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:20,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 20:03:21,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:21,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109384833] [2022-11-18 20:03:21,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109384833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:21,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:21,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:03:21,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539935743] [2022-11-18 20:03:21,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:21,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:03:21,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:21,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:03:21,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:03:21,093 INFO L87 Difference]: Start difference. First operand 1445 states and 1653 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:21,773 INFO L93 Difference]: Finished difference Result 3281 states and 3775 transitions. [2022-11-18 20:03:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:03:21,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 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 162 [2022-11-18 20:03:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:21,779 INFO L225 Difference]: With dead ends: 3281 [2022-11-18 20:03:21,780 INFO L226 Difference]: Without dead ends: 1969 [2022-11-18 20:03:21,781 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 [2022-11-18 20:03:21,782 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 374 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:21,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 42 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:03:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2022-11-18 20:03:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2022-11-18 20:03:21,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.136091453456723) internal successors, (2087), 1837 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:21,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2087 transitions. [2022-11-18 20:03:21,828 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2087 transitions. Word has length 162 [2022-11-18 20:03:21,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:21,828 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2087 transitions. [2022-11-18 20:03:21,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:21,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2087 transitions. [2022-11-18 20:03:21,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-18 20:03:21,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:21,833 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:21,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:03:21,833 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:21,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1659319423, now seen corresponding path program 1 times [2022-11-18 20:03:21,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:21,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500305019] [2022-11-18 20:03:21,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:21,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 20:03:22,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:22,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500305019] [2022-11-18 20:03:22,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500305019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:22,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:22,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:03:22,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558813837] [2022-11-18 20:03:22,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:22,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:03:22,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:22,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:03:22,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:03:22,132 INFO L87 Difference]: Start difference. First operand 1838 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:22,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:22,750 INFO L93 Difference]: Finished difference Result 3805 states and 4312 transitions. [2022-11-18 20:03:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:03:22,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 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 179 [2022-11-18 20:03:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:22,757 INFO L225 Difference]: With dead ends: 3805 [2022-11-18 20:03:22,757 INFO L226 Difference]: Without dead ends: 2100 [2022-11-18 20:03:22,760 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 [2022-11-18 20:03:22,761 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 279 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:22,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 33 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:03:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-11-18 20:03:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2022-11-18 20:03:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1295590636908002) internal successors, (2075), 1837 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2075 transitions. [2022-11-18 20:03:22,822 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2075 transitions. Word has length 179 [2022-11-18 20:03:22,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:22,824 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2075 transitions. [2022-11-18 20:03:22,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:22,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2075 transitions. [2022-11-18 20:03:22,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-18 20:03:22,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:22,829 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:22,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:03:22,831 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:22,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:22,831 INFO L85 PathProgramCache]: Analyzing trace with hash -593095199, now seen corresponding path program 1 times [2022-11-18 20:03:22,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:22,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128056268] [2022-11-18 20:03:22,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:22,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 20:03:23,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:23,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128056268] [2022-11-18 20:03:23,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128056268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:23,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:03:23,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:03:23,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421546827] [2022-11-18 20:03:23,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:23,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:03:23,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:23,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:03:23,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:03:23,116 INFO L87 Difference]: Start difference. First operand 1838 states and 2075 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:23,586 INFO L93 Difference]: Finished difference Result 3936 states and 4452 transitions. [2022-11-18 20:03:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:03:23,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2022-11-18 20:03:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:23,593 INFO L225 Difference]: With dead ends: 3936 [2022-11-18 20:03:23,593 INFO L226 Difference]: Without dead ends: 2231 [2022-11-18 20:03:23,595 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 [2022-11-18 20:03:23,598 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:23,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 180 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:03:23,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-11-18 20:03:23,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2100. [2022-11-18 20:03:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.120057170080991) internal successors, (2351), 2099 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2351 transitions. [2022-11-18 20:03:23,647 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2351 transitions. Word has length 222 [2022-11-18 20:03:23,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:23,648 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2351 transitions. [2022-11-18 20:03:23,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:23,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2351 transitions. [2022-11-18 20:03:23,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-18 20:03:23,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:23,653 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:23,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:03:23,653 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:23,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:23,659 INFO L85 PathProgramCache]: Analyzing trace with hash -997547212, now seen corresponding path program 1 times [2022-11-18 20:03:23,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:23,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891914505] [2022-11-18 20:03:23,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:23,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 57 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:03:24,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:24,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891914505] [2022-11-18 20:03:24,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891914505] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:03:24,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236638002] [2022-11-18 20:03:24,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:24,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:24,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:24,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:03:24,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:03:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:24,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:03:24,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-11-18 20:03:24,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:03:24,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236638002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:24,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:03:24,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-18 20:03:24,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130653752] [2022-11-18 20:03:24,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:24,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:03:24,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:24,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:03:24,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:03:24,980 INFO L87 Difference]: Start difference. First operand 2100 states and 2351 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:25,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:25,413 INFO L93 Difference]: Finished difference Result 4198 states and 4700 transitions. [2022-11-18 20:03:25,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:03:25,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 225 [2022-11-18 20:03:25,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:25,422 INFO L225 Difference]: With dead ends: 4198 [2022-11-18 20:03:25,422 INFO L226 Difference]: Without dead ends: 2100 [2022-11-18 20:03:25,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:03:25,427 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 23 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:25,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 170 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:03:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-11-18 20:03:25,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2022-11-18 20:03:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.100609756097561) internal successors, (2166), 1968 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2166 transitions. [2022-11-18 20:03:25,476 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2166 transitions. Word has length 225 [2022-11-18 20:03:25,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:25,476 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 2166 transitions. [2022-11-18 20:03:25,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:25,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2166 transitions. [2022-11-18 20:03:25,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-18 20:03:25,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:25,481 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:25,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:03:25,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:03:25,689 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:25,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:25,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1379691512, now seen corresponding path program 1 times [2022-11-18 20:03:25,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:25,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734427820] [2022-11-18 20:03:25,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:25,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:26,386 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 64 proven. 119 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 20:03:26,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:26,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734427820] [2022-11-18 20:03:26,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734427820] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:03:26,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849622730] [2022-11-18 20:03:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:26,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:26,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:26,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:03:26,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:03:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:26,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:03:26,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:26,774 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-18 20:03:26,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:03:26,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849622730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:26,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:03:26,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-18 20:03:26,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17730573] [2022-11-18 20:03:26,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:26,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:03:26,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:26,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:03:26,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:03:26,777 INFO L87 Difference]: Start difference. First operand 1969 states and 2166 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:27,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:27,194 INFO L93 Difference]: Finished difference Result 4460 states and 4887 transitions. [2022-11-18 20:03:27,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:03:27,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 244 [2022-11-18 20:03:27,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:27,201 INFO L225 Difference]: With dead ends: 4460 [2022-11-18 20:03:27,201 INFO L226 Difference]: Without dead ends: 1969 [2022-11-18 20:03:27,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:03:27,204 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 20 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:27,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 173 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:03:27,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2022-11-18 20:03:27,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2022-11-18 20:03:27,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.0691344583560152) internal successors, (1964), 1837 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:27,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1964 transitions. [2022-11-18 20:03:27,251 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1964 transitions. Word has length 244 [2022-11-18 20:03:27,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:27,251 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 1964 transitions. [2022-11-18 20:03:27,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:27,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1964 transitions. [2022-11-18 20:03:27,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-18 20:03:27,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:27,257 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:27,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:03:27,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:03:27,468 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:27,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:27,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1452501502, now seen corresponding path program 1 times [2022-11-18 20:03:27,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:27,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348723482] [2022-11-18 20:03:27,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:27,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 69 proven. 124 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 20:03:28,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:28,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348723482] [2022-11-18 20:03:28,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348723482] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:03:28,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259612398] [2022-11-18 20:03:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:28,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:28,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:28,160 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:03:28,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:03:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:28,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:03:28,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:28,519 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-18 20:03:28,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:03:28,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259612398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:28,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:03:28,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-18 20:03:28,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677440785] [2022-11-18 20:03:28,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:28,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:03:28,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:28,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:03:28,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:03:28,522 INFO L87 Difference]: Start difference. First operand 1838 states and 1964 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:28,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:28,962 INFO L93 Difference]: Finished difference Result 3674 states and 3944 transitions. [2022-11-18 20:03:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:03:28,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 249 [2022-11-18 20:03:28,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:28,968 INFO L225 Difference]: With dead ends: 3674 [2022-11-18 20:03:28,969 INFO L226 Difference]: Without dead ends: 1969 [2022-11-18 20:03:28,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:03:28,971 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 16 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:28,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 164 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:03:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2022-11-18 20:03:29,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2022-11-18 20:03:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.0627198124267292) internal successors, (1813), 1706 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:29,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1813 transitions. [2022-11-18 20:03:29,006 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1813 transitions. Word has length 249 [2022-11-18 20:03:29,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:29,007 INFO L495 AbstractCegarLoop]: Abstraction has 1707 states and 1813 transitions. [2022-11-18 20:03:29,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1813 transitions. [2022-11-18 20:03:29,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-18 20:03:29,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:03:29,013 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:29,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:03:29,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:03:29,218 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:03:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:03:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1606170497, now seen corresponding path program 1 times [2022-11-18 20:03:29,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:03:29,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922285454] [2022-11-18 20:03:29,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:29,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:03:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 201 proven. 127 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-18 20:03:29,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:03:29,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922285454] [2022-11-18 20:03:29,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922285454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:03:29,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780211946] [2022-11-18 20:03:29,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:03:29,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:29,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:03:29,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:03:29,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:03:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:03:30,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:03:30,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:03:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-18 20:03:30,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:03:30,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780211946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:03:30,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:03:30,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-18 20:03:30,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411442628] [2022-11-18 20:03:30,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:03:30,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:03:30,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:03:30,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:03:30,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:03:30,325 INFO L87 Difference]: Start difference. First operand 1707 states and 1813 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:03:30,785 INFO L93 Difference]: Finished difference Result 3672 states and 3915 transitions. [2022-11-18 20:03:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:03:30,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 287 [2022-11-18 20:03:30,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:03:30,786 INFO L225 Difference]: With dead ends: 3672 [2022-11-18 20:03:30,787 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:03:30,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:03:30,789 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 13 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:03:30,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 177 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:03:30,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:03:30,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:03:30,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:30,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:03:30,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2022-11-18 20:03:30,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:03:30,791 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:03:30,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:03:30,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:03:30,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:03:30,794 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:03:30,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:03:30,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:03:30,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:03:32,233 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-11-18 20:03:32,233 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-11-18 20:03:32,233 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-11-18 20:03:32,233 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-11-18 20:03:32,233 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-11-18 20:03:32,233 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-11-18 20:03:32,233 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-11-18 20:03:32,234 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,235 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-11-18 20:03:32,236 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,237 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-11-18 20:03:32,238 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-11-18 20:03:32,239 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,240 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-11-18 20:03:32,241 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-11-18 20:03:32,242 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-11-18 20:03:32,242 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-11-18 20:03:32,242 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-11-18 20:03:32,242 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-11-18 20:03:32,242 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,242 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,242 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,242 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,242 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:03:32,244 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-11-18 20:03:32,245 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-11-18 20:03:32,245 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-11-18 20:03:32,247 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-11-18 20:03:32,247 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-11-18 20:03:32,248 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-11-18 20:03:32,248 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-11-18 20:03:32,248 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-11-18 20:03:32,248 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-11-18 20:03:32,249 INFO L895 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0)) (.cse4 (<= 15 ~a8~0)) (.cse2 (<= ~a17~0 0)) (.cse5 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 5)) (.cse1 (= ~a16~0 6)) (.cse10 (= ~a12~0 8)) (.cse3 (= ~a21~0 1)) (.cse6 (= ~a17~0 1)) (.cse7 (<= ~a16~0 4)) (.cse8 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse7) (and .cse5 .cse7 .cse8) (and .cse0 .cse1 .cse3 .cse6 .cse4) (and .cse0 .cse2 .cse3 .cse9) (and .cse10 .cse3 .cse6 .cse9 .cse8 .cse4) (and .cse2 .cse3 .cse9 .cse8) (and .cse2 .cse3 .cse8 .cse4) (and .cse5 .cse6 .cse8) (and .cse0 .cse5 .cse3 .cse9) (and .cse0 .cse3 .cse6 .cse9 .cse4) (and .cse5 .cse2 .cse8) (and .cse5 .cse3 .cse9 .cse8) (and .cse10 .cse1 .cse3 .cse6 .cse8) (and .cse10 .cse3 .cse6 .cse7 .cse8))) [2022-11-18 20:03:32,249 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,249 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,249 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,250 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,250 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,250 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-11-18 20:03:32,250 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-11-18 20:03:32,250 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-11-18 20:03:32,250 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-11-18 20:03:32,250 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-11-18 20:03:32,251 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-11-18 20:03:32,251 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-11-18 20:03:32,251 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-11-18 20:03:32,251 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-11-18 20:03:32,251 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-11-18 20:03:32,251 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-11-18 20:03:32,252 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-11-18 20:03:32,252 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:03:32,252 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-11-18 20:03:32,252 INFO L902 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-11-18 20:03:32,252 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,252 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,252 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,253 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,253 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,253 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-11-18 20:03:32,253 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-11-18 20:03:32,253 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-11-18 20:03:32,253 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-11-18 20:03:32,253 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-11-18 20:03:32,254 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-11-18 20:03:32,254 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-11-18 20:03:32,254 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-11-18 20:03:32,254 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-11-18 20:03:32,254 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:03:32,254 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,255 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,255 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,255 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,255 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-11-18 20:03:32,256 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,256 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-11-18 20:03:32,256 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-11-18 20:03:32,256 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-11-18 20:03:32,256 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-11-18 20:03:32,256 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-11-18 20:03:32,256 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-11-18 20:03:32,257 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-11-18 20:03:32,257 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-11-18 20:03:32,257 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-11-18 20:03:32,257 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-11-18 20:03:32,257 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-11-18 20:03:32,257 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-11-18 20:03:32,258 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-11-18 20:03:32,258 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,258 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0)) (.cse4 (<= 15 ~a8~0)) (.cse2 (<= ~a17~0 0)) (.cse5 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 5)) (.cse1 (= ~a16~0 6)) (.cse10 (= ~a12~0 8)) (.cse3 (= ~a21~0 1)) (.cse6 (= ~a17~0 1)) (.cse7 (<= ~a16~0 4)) (.cse8 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse7) (and .cse5 .cse7 .cse8) (and .cse0 .cse1 .cse3 .cse6 .cse4) (and .cse0 .cse2 .cse3 .cse9) (and .cse10 .cse3 .cse6 .cse9 .cse8 .cse4) (and .cse2 .cse3 .cse9 .cse8) (and .cse2 .cse3 .cse8 .cse4) (and .cse5 .cse6 .cse8) (and .cse0 .cse5 .cse3 .cse9) (and .cse0 .cse3 .cse6 .cse9 .cse4) (and .cse5 .cse2 .cse8) (and .cse5 .cse3 .cse9 .cse8) (and .cse10 .cse1 .cse3 .cse6 .cse8) (and .cse10 .cse3 .cse6 .cse7 .cse8))) [2022-11-18 20:03:32,258 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,258 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,259 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,259 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,259 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-11-18 20:03:32,259 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:03:32,259 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 549) no Hoare annotation was computed. [2022-11-18 20:03:32,259 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-11-18 20:03:32,260 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-11-18 20:03:32,260 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-11-18 20:03:32,260 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-11-18 20:03:32,260 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-11-18 20:03:32,260 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-11-18 20:03:32,260 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-11-18 20:03:32,260 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,261 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,261 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,261 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,261 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-11-18 20:03:32,261 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-11-18 20:03:32,261 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-11-18 20:03:32,262 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-11-18 20:03:32,262 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-11-18 20:03:32,265 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:03:32,268 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:03:32,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:03:32 BoogieIcfgContainer [2022-11-18 20:03:32,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:03:32,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:03:32,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:03:32,313 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:03:32,313 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:03:14" (3/4) ... [2022-11-18 20:03:32,317 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:03:32,344 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 20:03:32,345 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:03:32,346 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:03:32,347 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:03:32,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:03:32,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:03:32,457 INFO L158 Benchmark]: Toolchain (without parser) took 20155.31ms. Allocated memory was 142.6MB in the beginning and 383.8MB in the end (delta: 241.2MB). Free memory was 105.3MB in the beginning and 302.3MB in the end (delta: -197.0MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2022-11-18 20:03:32,457 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 60.5MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:03:32,457 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.48ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 101.7MB in the end (delta: 3.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:03:32,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.68ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 96.1MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:03:32,458 INFO L158 Benchmark]: Boogie Preprocessor took 64.99ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 91.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:03:32,459 INFO L158 Benchmark]: RCFGBuilder took 1503.73ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 84.7MB in the end (delta: 7.1MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2022-11-18 20:03:32,459 INFO L158 Benchmark]: TraceAbstraction took 17733.43ms. Allocated memory was 142.6MB in the beginning and 383.8MB in the end (delta: 241.2MB). Free memory was 84.1MB in the beginning and 312.8MB in the end (delta: -228.7MB). Peak memory consumption was 201.7MB. Max. memory is 16.1GB. [2022-11-18 20:03:32,459 INFO L158 Benchmark]: Witness Printer took 143.64ms. Allocated memory is still 383.8MB. Free memory was 312.8MB in the beginning and 302.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:03:32,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 60.5MB in the beginning and 60.5MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.48ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 101.7MB in the end (delta: 3.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.68ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 96.1MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.99ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 91.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1503.73ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 84.7MB in the end (delta: 7.1MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * TraceAbstraction took 17733.43ms. Allocated memory was 142.6MB in the beginning and 383.8MB in the end (delta: 241.2MB). Free memory was 84.1MB in the beginning and 312.8MB in the end (delta: -228.7MB). Peak memory consumption was 201.7MB. Max. memory is 16.1GB. * Witness Printer took 143.64ms. Allocated memory is still 383.8MB. Free memory was 312.8MB in the beginning and 302.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 549]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1661 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1661 mSDsluCounter, 1238 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 732 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4852 IncrementalHoareTripleChecker+Invalid, 5584 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 732 mSolverCounterUnsat, 1154 mSDtfsCounter, 4852 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1043 GetRequests, 1012 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 1441 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 47 NumberOfFragments, 417 HoareAnnotationTreeSize, 3 FomulaSimplifications, 228 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2196 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 3372 NumberOfCodeBlocks, 3372 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3355 ConstructedInterpolants, 0 QuantifiedInterpolants, 16249 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1795 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 1820/2288 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: 593]: Loop Invariant Derived loop invariant: (((((((((((((((((a20 <= 0 && a16 == 6) && a17 <= 0) && a21 == 1) && 15 <= a8) || (((a20 <= 0 && a8 <= 13) && a17 == 1) && a16 <= 4)) || ((a8 <= 13 && a16 <= 4) && a20 == 1)) || ((((a20 <= 0 && a16 == 6) && a21 == 1) && a17 == 1) && 15 <= a8)) || (((a20 <= 0 && a17 <= 0) && a21 == 1) && a16 <= 5)) || (((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1) && 15 <= a8)) || (((a17 <= 0 && a21 == 1) && a16 <= 5) && a20 == 1)) || (((a17 <= 0 && a21 == 1) && a20 == 1) && 15 <= a8)) || ((a8 <= 13 && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a8 <= 13) && a21 == 1) && a16 <= 5)) || ((((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5) && 15 <= a8)) || ((a8 <= 13 && a17 <= 0) && a20 == 1)) || (((a8 <= 13 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((((a12 == 8 && a16 == 6) && a21 == 1) && a17 == 1) && a20 == 1)) || ((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 4) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((((((((a20 <= 0 && a16 == 6) && a17 <= 0) && a21 == 1) && 15 <= a8) || (((a20 <= 0 && a8 <= 13) && a17 == 1) && a16 <= 4)) || ((a8 <= 13 && a16 <= 4) && a20 == 1)) || ((((a20 <= 0 && a16 == 6) && a21 == 1) && a17 == 1) && 15 <= a8)) || (((a20 <= 0 && a17 <= 0) && a21 == 1) && a16 <= 5)) || (((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1) && 15 <= a8)) || (((a17 <= 0 && a21 == 1) && a16 <= 5) && a20 == 1)) || (((a17 <= 0 && a21 == 1) && a20 == 1) && 15 <= a8)) || ((a8 <= 13 && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a8 <= 13) && a21 == 1) && a16 <= 5)) || ((((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5) && 15 <= a8)) || ((a8 <= 13 && a17 <= 0) && a20 == 1)) || (((a8 <= 13 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((((a12 == 8 && a16 == 6) && a21 == 1) && a17 == 1) && a20 == 1)) || ((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 4) && a20 == 1) RESULT: Ultimate proved your program to be correct! [2022-11-18 20:03:32,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbbd989a-1746-4436-889a-6c6cf16e73f5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE