./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fc62610a4219624ba1b65e937db0086d4a06c21628bb87b5f81a8591bf53b9b6 --- 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-5e519f3 [2022-11-03 03:31:41,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:31:41,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:31:41,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:31:42,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:31:42,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:31:42,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:31:42,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:31:42,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:31:42,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:31:42,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:31:42,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:31:42,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:31:42,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:31:42,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:31:42,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:31:42,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:31:42,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:31:42,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:31:42,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:31:42,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:31:42,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:31:42,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:31:42,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:31:42,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:31:42,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:31:42,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:31:42,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:31:42,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:31:42,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:31:42,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:31:42,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:31:42,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:31:42,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:31:42,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:31:42,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:31:42,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:31:42,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:31:42,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:31:42,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:31:42,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:31:42,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:31:42,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:31:42,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:31:42,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:31:42,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:31:42,112 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:31:42,112 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:31:42,112 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:31:42,112 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:31:42,112 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:31:42,113 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:31:42,113 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:31:42,113 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:31:42,113 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:31:42,114 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:31:42,114 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:31:42,114 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:31:42,114 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:31:42,115 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:31:42,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:31:42,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:31:42,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:31:42,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:31:42,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:31:42,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:31:42,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:31:42,117 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:31:42,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:31:42,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:31:42,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:31:42,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:42,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:31:42,119 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:31:42,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:31:42,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:31:42,119 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:31:42,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:31:42,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:31:42,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:31:42,120 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_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc62610a4219624ba1b65e937db0086d4a06c21628bb87b5f81a8591bf53b9b6 [2022-11-03 03:31:42,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:31:42,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:31:42,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:31:42,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:31:42,476 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:31:42,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2022-11-03 03:31:42,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data/6f33959ce/32143a87d5d44f1da37e9e718f7d8c13/FLAG4ede1f568 [2022-11-03 03:31:43,087 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:31:43,088 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2022-11-03 03:31:43,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data/6f33959ce/32143a87d5d44f1da37e9e718f7d8c13/FLAG4ede1f568 [2022-11-03 03:31:43,346 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data/6f33959ce/32143a87d5d44f1da37e9e718f7d8c13 [2022-11-03 03:31:43,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:31:43,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:31:43,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:43,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:31:43,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:31:43,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:43" (1/1) ... [2022-11-03 03:31:43,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76eb06e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:43, skipping insertion in model container [2022-11-03 03:31:43,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:31:43" (1/1) ... [2022-11-03 03:31:43,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:31:43,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:31:43,649 WARN L230 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_f10b5009-50fa-4888-bd5d-71ec85b327e2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1132,1145] [2022-11-03 03:31:43,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:43,913 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:31:43,925 WARN L230 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_f10b5009-50fa-4888-bd5d-71ec85b327e2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1132,1145] [2022-11-03 03:31:44,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:31:44,095 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:31:44,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44 WrapperNode [2022-11-03 03:31:44,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:31:44,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:44,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:31:44,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:31:44,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,308 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 840 [2022-11-03 03:31:44,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:31:44,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:31:44,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:31:44,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:31:44,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,449 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:31:44,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:31:44,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:31:44,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:31:44,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (1/1) ... [2022-11-03 03:31:44,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:31:44,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:44,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:31:44,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:31:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:31:44,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:31:44,548 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:31:44,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:31:44,830 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:31:44,832 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:31:53,595 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:31:55,338 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:31:55,338 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:31:55,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:55 BoogieIcfgContainer [2022-11-03 03:31:55,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:31:55,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:31:55,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:31:55,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:31:55,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:31:43" (1/3) ... [2022-11-03 03:31:55,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0cb3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:55, skipping insertion in model container [2022-11-03 03:31:55,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:31:44" (2/3) ... [2022-11-03 03:31:55,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0cb3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:31:55, skipping insertion in model container [2022-11-03 03:31:55,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:55" (3/3) ... [2022-11-03 03:31:55,352 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2022-11-03 03:31:55,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:31:55,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:31:55,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:31:55,458 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=FINITE_AUTOMATA, 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;@6b7fd35d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:31:55,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:31:55,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 03:31:55,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 03:31:55,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:55,472 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:55,473 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:55,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:55,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1282994666, now seen corresponding path program 1 times [2022-11-03 03:31:55,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:55,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325381538] [2022-11-03 03:31:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:55,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:32:03,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:32:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:32:09,396 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:32:09,398 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:32:09,399 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:32:09,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:32:09,407 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 03:32:09,413 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:32:09,497 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 03:32:09,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:32:09 BoogieIcfgContainer [2022-11-03 03:32:09,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:32:09,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:32:09,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:32:09,544 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:32:09,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:31:55" (3/4) ... [2022-11-03 03:32:09,549 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:32:09,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:32:09,551 INFO L158 Benchmark]: Toolchain (without parser) took 26200.35ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 67.6MB in the beginning and 871.8MB in the end (delta: -804.2MB). Peak memory consumption was 233.8MB. Max. memory is 16.1GB. [2022-11-03 03:32:09,551 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:32:09,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 747.99ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 67.4MB in the beginning and 90.3MB in the end (delta: -22.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 03:32:09,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 206.27ms. Allocated memory is still 138.4MB. Free memory was 90.3MB in the beginning and 105.8MB in the end (delta: -15.5MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2022-11-03 03:32:09,559 INFO L158 Benchmark]: Boogie Preprocessor took 158.61ms. Allocated memory is still 138.4MB. Free memory was 105.8MB in the beginning and 97.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 03:32:09,560 INFO L158 Benchmark]: RCFGBuilder took 10872.96ms. Allocated memory was 138.4MB in the beginning and 375.4MB in the end (delta: 237.0MB). Free memory was 97.0MB in the beginning and 197.5MB in the end (delta: -100.4MB). Peak memory consumption was 232.1MB. Max. memory is 16.1GB. [2022-11-03 03:32:09,561 INFO L158 Benchmark]: TraceAbstraction took 14198.04ms. Allocated memory was 375.4MB in the beginning and 1.1GB in the end (delta: 763.4MB). Free memory was 197.5MB in the beginning and 871.8MB in the end (delta: -674.3MB). Peak memory consumption was 368.0MB. Max. memory is 16.1GB. [2022-11-03 03:32:09,562 INFO L158 Benchmark]: Witness Printer took 6.01ms. Allocated memory is still 1.1GB. Free memory is still 871.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:32:09,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 747.99ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 67.4MB in the beginning and 90.3MB in the end (delta: -22.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 206.27ms. Allocated memory is still 138.4MB. Free memory was 90.3MB in the beginning and 105.8MB in the end (delta: -15.5MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 158.61ms. Allocated memory is still 138.4MB. Free memory was 105.8MB in the beginning and 97.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 10872.96ms. Allocated memory was 138.4MB in the beginning and 375.4MB in the end (delta: 237.0MB). Free memory was 97.0MB in the beginning and 197.5MB in the end (delta: -100.4MB). Peak memory consumption was 232.1MB. Max. memory is 16.1GB. * TraceAbstraction took 14198.04ms. Allocated memory was 375.4MB in the beginning and 1.1GB in the end (delta: 763.4MB). Free memory was 197.5MB in the beginning and 871.8MB in the end (delta: -674.3MB). Peak memory consumption was 368.0MB. Max. memory is 16.1GB. * Witness Printer took 6.01ms. Allocated memory is still 1.1GB. Free memory is still 871.8MB. There was no memory consumed. 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 296, overapproximation of bitwiseAnd at line 287, overapproximation of bitwiseComplement at line 293, overapproximation of bitwiseXOr at line 555. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 31); [L29] const SORT_9 msb_SORT_9 = (SORT_9)1 << (31 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 3); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (3 - 1); [L37] const SORT_15 mask_SORT_15 = (SORT_15)-1 >> (sizeof(SORT_15) * 8 - 4); [L38] const SORT_15 msb_SORT_15 = (SORT_15)1 << (4 - 1); [L40] const SORT_17 mask_SORT_17 = (SORT_17)-1 >> (sizeof(SORT_17) * 8 - 5); [L41] const SORT_17 msb_SORT_17 = (SORT_17)1 << (5 - 1); [L43] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 6); [L44] const SORT_19 msb_SORT_19 = (SORT_19)1 << (6 - 1); [L46] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 7); [L47] const SORT_21 msb_SORT_21 = (SORT_21)1 << (7 - 1); [L49] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 8); [L50] const SORT_23 msb_SORT_23 = (SORT_23)1 << (8 - 1); [L52] const SORT_25 mask_SORT_25 = (SORT_25)-1 >> (sizeof(SORT_25) * 8 - 9); [L53] const SORT_25 msb_SORT_25 = (SORT_25)1 << (9 - 1); [L55] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 10); [L56] const SORT_27 msb_SORT_27 = (SORT_27)1 << (10 - 1); [L58] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 11); [L59] const SORT_29 msb_SORT_29 = (SORT_29)1 << (11 - 1); [L61] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 12); [L62] const SORT_31 msb_SORT_31 = (SORT_31)1 << (12 - 1); [L64] const SORT_33 mask_SORT_33 = (SORT_33)-1 >> (sizeof(SORT_33) * 8 - 13); [L65] const SORT_33 msb_SORT_33 = (SORT_33)1 << (13 - 1); [L67] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 14); [L68] const SORT_35 msb_SORT_35 = (SORT_35)1 << (14 - 1); [L70] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 15); [L71] const SORT_37 msb_SORT_37 = (SORT_37)1 << (15 - 1); [L73] const SORT_39 mask_SORT_39 = (SORT_39)-1 >> (sizeof(SORT_39) * 8 - 16); [L74] const SORT_39 msb_SORT_39 = (SORT_39)1 << (16 - 1); [L76] const SORT_41 mask_SORT_41 = (SORT_41)-1 >> (sizeof(SORT_41) * 8 - 17); [L77] const SORT_41 msb_SORT_41 = (SORT_41)1 << (17 - 1); [L79] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 18); [L80] const SORT_43 msb_SORT_43 = (SORT_43)1 << (18 - 1); [L82] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 19); [L83] const SORT_45 msb_SORT_45 = (SORT_45)1 << (19 - 1); [L85] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 20); [L86] const SORT_47 msb_SORT_47 = (SORT_47)1 << (20 - 1); [L88] const SORT_49 mask_SORT_49 = (SORT_49)-1 >> (sizeof(SORT_49) * 8 - 21); [L89] const SORT_49 msb_SORT_49 = (SORT_49)1 << (21 - 1); [L91] const SORT_51 mask_SORT_51 = (SORT_51)-1 >> (sizeof(SORT_51) * 8 - 22); [L92] const SORT_51 msb_SORT_51 = (SORT_51)1 << (22 - 1); [L94] const SORT_53 mask_SORT_53 = (SORT_53)-1 >> (sizeof(SORT_53) * 8 - 23); [L95] const SORT_53 msb_SORT_53 = (SORT_53)1 << (23 - 1); [L97] const SORT_55 mask_SORT_55 = (SORT_55)-1 >> (sizeof(SORT_55) * 8 - 24); [L98] const SORT_55 msb_SORT_55 = (SORT_55)1 << (24 - 1); [L100] const SORT_57 mask_SORT_57 = (SORT_57)-1 >> (sizeof(SORT_57) * 8 - 25); [L101] const SORT_57 msb_SORT_57 = (SORT_57)1 << (25 - 1); [L103] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 26); [L104] const SORT_59 msb_SORT_59 = (SORT_59)1 << (26 - 1); [L106] const SORT_61 mask_SORT_61 = (SORT_61)-1 >> (sizeof(SORT_61) * 8 - 27); [L107] const SORT_61 msb_SORT_61 = (SORT_61)1 << (27 - 1); [L109] const SORT_63 mask_SORT_63 = (SORT_63)-1 >> (sizeof(SORT_63) * 8 - 28); [L110] const SORT_63 msb_SORT_63 = (SORT_63)1 << (28 - 1); [L112] const SORT_65 mask_SORT_65 = (SORT_65)-1 >> (sizeof(SORT_65) * 8 - 29); [L113] const SORT_65 msb_SORT_65 = (SORT_65)1 << (29 - 1); [L115] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 30); [L116] const SORT_67 msb_SORT_67 = (SORT_67)1 << (30 - 1); [L118] const SORT_156 mask_SORT_156 = (SORT_156)-1 >> (sizeof(SORT_156) * 8 - 64); [L119] const SORT_156 msb_SORT_156 = (SORT_156)1 << (64 - 1); [L121] const SORT_157 mask_SORT_157 = (SORT_157)-1 >> (sizeof(SORT_157) * 8 - 34); [L122] const SORT_157 msb_SORT_157 = (SORT_157)1 << (34 - 1); [L124] const SORT_158 mask_SORT_158 = (SORT_158)-1 >> (sizeof(SORT_158) * 8 - 2); [L125] const SORT_158 msb_SORT_158 = (SORT_158)1 << (2 - 1); [L127] const SORT_166 mask_SORT_166 = (SORT_166)-1 >> (sizeof(SORT_166) * 8 - 35); [L128] const SORT_166 msb_SORT_166 = (SORT_166)1 << (35 - 1); [L130] const SORT_169 mask_SORT_169 = (SORT_169)-1 >> (sizeof(SORT_169) * 8 - 36); [L131] const SORT_169 msb_SORT_169 = (SORT_169)1 << (36 - 1); [L133] const SORT_172 mask_SORT_172 = (SORT_172)-1 >> (sizeof(SORT_172) * 8 - 37); [L134] const SORT_172 msb_SORT_172 = (SORT_172)1 << (37 - 1); [L136] const SORT_175 mask_SORT_175 = (SORT_175)-1 >> (sizeof(SORT_175) * 8 - 38); [L137] const SORT_175 msb_SORT_175 = (SORT_175)1 << (38 - 1); [L139] const SORT_178 mask_SORT_178 = (SORT_178)-1 >> (sizeof(SORT_178) * 8 - 39); [L140] const SORT_178 msb_SORT_178 = (SORT_178)1 << (39 - 1); [L142] const SORT_181 mask_SORT_181 = (SORT_181)-1 >> (sizeof(SORT_181) * 8 - 40); [L143] const SORT_181 msb_SORT_181 = (SORT_181)1 << (40 - 1); [L145] const SORT_184 mask_SORT_184 = (SORT_184)-1 >> (sizeof(SORT_184) * 8 - 41); [L146] const SORT_184 msb_SORT_184 = (SORT_184)1 << (41 - 1); [L148] const SORT_187 mask_SORT_187 = (SORT_187)-1 >> (sizeof(SORT_187) * 8 - 42); [L149] const SORT_187 msb_SORT_187 = (SORT_187)1 << (42 - 1); [L151] const SORT_190 mask_SORT_190 = (SORT_190)-1 >> (sizeof(SORT_190) * 8 - 43); [L152] const SORT_190 msb_SORT_190 = (SORT_190)1 << (43 - 1); [L154] const SORT_193 mask_SORT_193 = (SORT_193)-1 >> (sizeof(SORT_193) * 8 - 44); [L155] const SORT_193 msb_SORT_193 = (SORT_193)1 << (44 - 1); [L157] const SORT_196 mask_SORT_196 = (SORT_196)-1 >> (sizeof(SORT_196) * 8 - 45); [L158] const SORT_196 msb_SORT_196 = (SORT_196)1 << (45 - 1); [L160] const SORT_199 mask_SORT_199 = (SORT_199)-1 >> (sizeof(SORT_199) * 8 - 46); [L161] const SORT_199 msb_SORT_199 = (SORT_199)1 << (46 - 1); [L163] const SORT_202 mask_SORT_202 = (SORT_202)-1 >> (sizeof(SORT_202) * 8 - 47); [L164] const SORT_202 msb_SORT_202 = (SORT_202)1 << (47 - 1); [L166] const SORT_205 mask_SORT_205 = (SORT_205)-1 >> (sizeof(SORT_205) * 8 - 48); [L167] const SORT_205 msb_SORT_205 = (SORT_205)1 << (48 - 1); [L169] const SORT_208 mask_SORT_208 = (SORT_208)-1 >> (sizeof(SORT_208) * 8 - 49); [L170] const SORT_208 msb_SORT_208 = (SORT_208)1 << (49 - 1); [L172] const SORT_211 mask_SORT_211 = (SORT_211)-1 >> (sizeof(SORT_211) * 8 - 50); [L173] const SORT_211 msb_SORT_211 = (SORT_211)1 << (50 - 1); [L175] const SORT_214 mask_SORT_214 = (SORT_214)-1 >> (sizeof(SORT_214) * 8 - 51); [L176] const SORT_214 msb_SORT_214 = (SORT_214)1 << (51 - 1); [L178] const SORT_217 mask_SORT_217 = (SORT_217)-1 >> (sizeof(SORT_217) * 8 - 52); [L179] const SORT_217 msb_SORT_217 = (SORT_217)1 << (52 - 1); [L181] const SORT_220 mask_SORT_220 = (SORT_220)-1 >> (sizeof(SORT_220) * 8 - 53); [L182] const SORT_220 msb_SORT_220 = (SORT_220)1 << (53 - 1); [L184] const SORT_223 mask_SORT_223 = (SORT_223)-1 >> (sizeof(SORT_223) * 8 - 54); [L185] const SORT_223 msb_SORT_223 = (SORT_223)1 << (54 - 1); [L187] const SORT_226 mask_SORT_226 = (SORT_226)-1 >> (sizeof(SORT_226) * 8 - 55); [L188] const SORT_226 msb_SORT_226 = (SORT_226)1 << (55 - 1); [L190] const SORT_229 mask_SORT_229 = (SORT_229)-1 >> (sizeof(SORT_229) * 8 - 56); [L191] const SORT_229 msb_SORT_229 = (SORT_229)1 << (56 - 1); [L193] const SORT_232 mask_SORT_232 = (SORT_232)-1 >> (sizeof(SORT_232) * 8 - 57); [L194] const SORT_232 msb_SORT_232 = (SORT_232)1 << (57 - 1); [L196] const SORT_235 mask_SORT_235 = (SORT_235)-1 >> (sizeof(SORT_235) * 8 - 58); [L197] const SORT_235 msb_SORT_235 = (SORT_235)1 << (58 - 1); [L199] const SORT_238 mask_SORT_238 = (SORT_238)-1 >> (sizeof(SORT_238) * 8 - 59); [L200] const SORT_238 msb_SORT_238 = (SORT_238)1 << (59 - 1); [L202] const SORT_241 mask_SORT_241 = (SORT_241)-1 >> (sizeof(SORT_241) * 8 - 60); [L203] const SORT_241 msb_SORT_241 = (SORT_241)1 << (60 - 1); [L205] const SORT_244 mask_SORT_244 = (SORT_244)-1 >> (sizeof(SORT_244) * 8 - 61); [L206] const SORT_244 msb_SORT_244 = (SORT_244)1 << (61 - 1); [L208] const SORT_247 mask_SORT_247 = (SORT_247)-1 >> (sizeof(SORT_247) * 8 - 62); [L209] const SORT_247 msb_SORT_247 = (SORT_247)1 << (62 - 1); [L211] const SORT_250 mask_SORT_250 = (SORT_250)-1 >> (sizeof(SORT_250) * 8 - 63); [L212] const SORT_250 msb_SORT_250 = (SORT_250)1 << (63 - 1); [L214] const SORT_1 var_7 = 0; [L215] const SORT_1 var_8 = 1; [L216] const SORT_9 var_10 = 0; [L217] const SORT_12 var_13 = 4; [L218] const SORT_15 var_71 = 8; [L219] const SORT_12 var_117 = 5; [L220] const SORT_39 var_119 = 0; [L221] const SORT_11 var_153 = 64; [L222] const SORT_158 var_159 = 1; [L223] const SORT_23 var_255 = 127; [L224] const SORT_11 var_288 = 1; [L225] const SORT_11 var_290 = 127; [L226] const SORT_12 var_371 = 6; [L227] const SORT_15 var_375 = 9; [L228] const SORT_21 var_393 = 64; [L229] const SORT_12 var_406 = 0; [L230] const SORT_15 var_409 = 0; [L232] SORT_1 input_2; [L233] SORT_1 input_3; [L234] SORT_1 input_4; [L236] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L237] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L238] SORT_11 state_103 = __VERIFIER_nondet_uint() & mask_SORT_11; [L239] SORT_1 state_105 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L240] SORT_39 state_120 = __VERIFIER_nondet_ushort() & mask_SORT_39; [L241] SORT_15 state_140 = __VERIFIER_nondet_uchar() & mask_SORT_15; [L242] SORT_15 state_143 = __VERIFIER_nondet_uchar() & mask_SORT_15; [L243] SORT_11 state_147 = __VERIFIER_nondet_uint() & mask_SORT_11; [L244] SORT_1 state_259 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L246] SORT_39 init_121_arg_1 = var_119; [L247] state_120 = init_121_arg_1 VAL [init_121_arg_1=0, mask_SORT_1=1, mask_SORT_11=4294967295, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_156=18446744073709551615, mask_SORT_157=18446744073709551615, mask_SORT_158=3, mask_SORT_166=18446744073709551615, mask_SORT_169=18446744073709551615, mask_SORT_17=31, mask_SORT_172=18446744073709551615, mask_SORT_175=18446744073709551615, mask_SORT_178=18446744073709551615, mask_SORT_181=18446744073709551615, mask_SORT_184=18446744073709551615, mask_SORT_187=18446744073709551615, mask_SORT_19=63, mask_SORT_190=18446744073709551615, mask_SORT_193=18446744073709551615, mask_SORT_196=18446744073709551615, mask_SORT_199=18446744073709551615, mask_SORT_202=18446744073709551615, mask_SORT_205=18446744073709551615, mask_SORT_208=18446744073709551615, mask_SORT_21=127, mask_SORT_211=18446744073709551615, mask_SORT_214=18446744073709551615, mask_SORT_217=18446744073709551615, mask_SORT_220=18446744073709551615, mask_SORT_223=18446744073709551615, mask_SORT_226=18446744073709551615, mask_SORT_229=18446744073709551615, mask_SORT_23=255, mask_SORT_232=18446744073709551615, mask_SORT_235=18446744073709551615, mask_SORT_238=18446744073709551615, mask_SORT_241=18446744073709551615, mask_SORT_244=18446744073709551615, mask_SORT_247=18446744073709551615, mask_SORT_25=511, mask_SORT_250=18446744073709551615, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=4294967295, mask_SORT_43=4294967295, mask_SORT_45=4294967295, mask_SORT_47=4294967295, mask_SORT_49=4294967295, mask_SORT_51=4294967295, mask_SORT_53=4294967295, mask_SORT_55=4294967295, mask_SORT_57=4294967295, mask_SORT_59=4294967295, mask_SORT_61=4294967295, mask_SORT_63=4294967295, mask_SORT_65=4294967295, mask_SORT_67=4294967295, mask_SORT_9=4294967295, msb_SORT_1=1, msb_SORT_11=2147483648, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_156=9223372036854775808, msb_SORT_157=8589934592, msb_SORT_158=2, msb_SORT_166=17179869184, msb_SORT_169=34359738368, msb_SORT_17=16, msb_SORT_172=68719476736, msb_SORT_175=137438953472, msb_SORT_178=274877906944, msb_SORT_181=549755813888, msb_SORT_184=1099511627776, msb_SORT_187=2199023255552, msb_SORT_19=32, msb_SORT_190=4398046511104, msb_SORT_193=8796093022208, msb_SORT_196=17592186044416, msb_SORT_199=35184372088832, msb_SORT_202=70368744177664, msb_SORT_205=140737488355328, msb_SORT_208=281474976710656, msb_SORT_21=64, msb_SORT_211=562949953421312, msb_SORT_214=1125899906842624, msb_SORT_217=2251799813685248, msb_SORT_220=4503599627370496, msb_SORT_223=9007199254740992, msb_SORT_226=18014398509481984, msb_SORT_229=36028797018963968, msb_SORT_23=128, msb_SORT_232=72057594037927936, msb_SORT_235=144115188075855872, msb_SORT_238=288230376151711744, msb_SORT_241=576460752303423488, msb_SORT_244=1152921504606846976, msb_SORT_247=2305843009213693952, msb_SORT_25=256, msb_SORT_250=4611686018427387904, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_39=32768, msb_SORT_41=65536, msb_SORT_43=131072, msb_SORT_45=262144, msb_SORT_47=524288, msb_SORT_49=1048576, msb_SORT_51=2097152, msb_SORT_53=4194304, msb_SORT_55=8388608, msb_SORT_57=16777216, msb_SORT_59=33554432, msb_SORT_61=67108864, msb_SORT_63=134217728, msb_SORT_65=268435456, msb_SORT_67=536870912, msb_SORT_9=1073741824, state_103=4294967278, state_105=0, state_120=0, state_140=0, state_143=1, state_147=4, state_259=1, state_5=1, state_72=0, var_10=0, var_117=5, var_119=0, var_13=4, var_153=64, var_159=1, var_255=127, var_288=1, var_290=127, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_7=0, var_71=8, var_8=1] [L250] input_2 = __VERIFIER_nondet_uchar() [L251] input_3 = __VERIFIER_nondet_uchar() [L252] input_3 = input_3 & mask_SORT_1 [L253] input_4 = __VERIFIER_nondet_uchar() [L254] input_4 = input_4 & mask_SORT_1 [L256] SORT_1 var_128_arg_0 = state_5; [L257] SORT_1 var_128 = ~var_128_arg_0; [L258] SORT_1 var_129_arg_0 = var_128; [L259] SORT_1 var_129 = ~var_129_arg_0; [L260] SORT_1 var_130_arg_0 = state_5; [L261] SORT_1 var_130_arg_1 = var_129; [L262] SORT_1 var_130 = var_130_arg_0 | var_130_arg_1; [L263] var_130 = var_130 & mask_SORT_1 [L264] SORT_1 constr_131_arg_0 = var_130; VAL [constr_131_arg_0=1, init_121_arg_1=0, input_2=10, input_3=1, input_4=0, mask_SORT_1=1, mask_SORT_11=4294967295, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_156=18446744073709551615, mask_SORT_157=18446744073709551615, mask_SORT_158=3, mask_SORT_166=18446744073709551615, mask_SORT_169=18446744073709551615, mask_SORT_17=31, mask_SORT_172=18446744073709551615, mask_SORT_175=18446744073709551615, mask_SORT_178=18446744073709551615, mask_SORT_181=18446744073709551615, mask_SORT_184=18446744073709551615, mask_SORT_187=18446744073709551615, mask_SORT_19=63, mask_SORT_190=18446744073709551615, mask_SORT_193=18446744073709551615, mask_SORT_196=18446744073709551615, mask_SORT_199=18446744073709551615, mask_SORT_202=18446744073709551615, mask_SORT_205=18446744073709551615, mask_SORT_208=18446744073709551615, mask_SORT_21=127, mask_SORT_211=18446744073709551615, mask_SORT_214=18446744073709551615, mask_SORT_217=18446744073709551615, mask_SORT_220=18446744073709551615, mask_SORT_223=18446744073709551615, mask_SORT_226=18446744073709551615, mask_SORT_229=18446744073709551615, mask_SORT_23=255, mask_SORT_232=18446744073709551615, mask_SORT_235=18446744073709551615, mask_SORT_238=18446744073709551615, mask_SORT_241=18446744073709551615, mask_SORT_244=18446744073709551615, mask_SORT_247=18446744073709551615, mask_SORT_25=511, mask_SORT_250=18446744073709551615, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=4294967295, mask_SORT_43=4294967295, mask_SORT_45=4294967295, mask_SORT_47=4294967295, mask_SORT_49=4294967295, mask_SORT_51=4294967295, mask_SORT_53=4294967295, mask_SORT_55=4294967295, mask_SORT_57=4294967295, mask_SORT_59=4294967295, mask_SORT_61=4294967295, mask_SORT_63=4294967295, mask_SORT_65=4294967295, mask_SORT_67=4294967295, mask_SORT_9=4294967295, msb_SORT_1=1, msb_SORT_11=2147483648, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_156=9223372036854775808, msb_SORT_157=8589934592, msb_SORT_158=2, msb_SORT_166=17179869184, msb_SORT_169=34359738368, msb_SORT_17=16, msb_SORT_172=68719476736, msb_SORT_175=137438953472, msb_SORT_178=274877906944, msb_SORT_181=549755813888, msb_SORT_184=1099511627776, msb_SORT_187=2199023255552, msb_SORT_19=32, msb_SORT_190=4398046511104, msb_SORT_193=8796093022208, msb_SORT_196=17592186044416, msb_SORT_199=35184372088832, msb_SORT_202=70368744177664, msb_SORT_205=140737488355328, msb_SORT_208=281474976710656, msb_SORT_21=64, msb_SORT_211=562949953421312, msb_SORT_214=1125899906842624, msb_SORT_217=2251799813685248, msb_SORT_220=4503599627370496, msb_SORT_223=9007199254740992, msb_SORT_226=18014398509481984, msb_SORT_229=36028797018963968, msb_SORT_23=128, msb_SORT_232=72057594037927936, msb_SORT_235=144115188075855872, msb_SORT_238=288230376151711744, msb_SORT_241=576460752303423488, msb_SORT_244=1152921504606846976, msb_SORT_247=2305843009213693952, msb_SORT_25=256, msb_SORT_250=4611686018427387904, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_39=32768, msb_SORT_41=65536, msb_SORT_43=131072, msb_SORT_45=262144, msb_SORT_47=524288, msb_SORT_49=1048576, msb_SORT_51=2097152, msb_SORT_53=4194304, msb_SORT_55=8388608, msb_SORT_57=16777216, msb_SORT_59=33554432, msb_SORT_61=67108864, msb_SORT_63=134217728, msb_SORT_65=268435456, msb_SORT_67=536870912, msb_SORT_9=1073741824, state_103=4294967278, state_105=0, state_120=0, state_140=0, state_143=1, state_147=4, state_259=1, state_5=1, state_72=0, var_10=0, var_117=5, var_119=0, var_128=8, var_128_arg_0=1, var_129=255, var_129_arg_0=8, var_13=4, var_130=1, var_130_arg_0=1, var_130_arg_1=255, var_153=64, var_159=1, var_255=127, var_288=1, var_290=127, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_7=0, var_71=8, var_8=1] [L265] CALL assume_abort_if_not(constr_131_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L265] RET assume_abort_if_not(constr_131_arg_0) VAL [constr_131_arg_0=1, init_121_arg_1=0, input_2=10, input_3=1, input_4=0, mask_SORT_1=1, mask_SORT_11=4294967295, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_156=18446744073709551615, mask_SORT_157=18446744073709551615, mask_SORT_158=3, mask_SORT_166=18446744073709551615, mask_SORT_169=18446744073709551615, mask_SORT_17=31, mask_SORT_172=18446744073709551615, mask_SORT_175=18446744073709551615, mask_SORT_178=18446744073709551615, mask_SORT_181=18446744073709551615, mask_SORT_184=18446744073709551615, mask_SORT_187=18446744073709551615, mask_SORT_19=63, mask_SORT_190=18446744073709551615, mask_SORT_193=18446744073709551615, mask_SORT_196=18446744073709551615, mask_SORT_199=18446744073709551615, mask_SORT_202=18446744073709551615, mask_SORT_205=18446744073709551615, mask_SORT_208=18446744073709551615, mask_SORT_21=127, mask_SORT_211=18446744073709551615, mask_SORT_214=18446744073709551615, mask_SORT_217=18446744073709551615, mask_SORT_220=18446744073709551615, mask_SORT_223=18446744073709551615, mask_SORT_226=18446744073709551615, mask_SORT_229=18446744073709551615, mask_SORT_23=255, mask_SORT_232=18446744073709551615, mask_SORT_235=18446744073709551615, mask_SORT_238=18446744073709551615, mask_SORT_241=18446744073709551615, mask_SORT_244=18446744073709551615, mask_SORT_247=18446744073709551615, mask_SORT_25=511, mask_SORT_250=18446744073709551615, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=4294967295, mask_SORT_43=4294967295, mask_SORT_45=4294967295, mask_SORT_47=4294967295, mask_SORT_49=4294967295, mask_SORT_51=4294967295, mask_SORT_53=4294967295, mask_SORT_55=4294967295, mask_SORT_57=4294967295, mask_SORT_59=4294967295, mask_SORT_61=4294967295, mask_SORT_63=4294967295, mask_SORT_65=4294967295, mask_SORT_67=4294967295, mask_SORT_9=4294967295, msb_SORT_1=1, msb_SORT_11=2147483648, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_156=9223372036854775808, msb_SORT_157=8589934592, msb_SORT_158=2, msb_SORT_166=17179869184, msb_SORT_169=34359738368, msb_SORT_17=16, msb_SORT_172=68719476736, msb_SORT_175=137438953472, msb_SORT_178=274877906944, msb_SORT_181=549755813888, msb_SORT_184=1099511627776, msb_SORT_187=2199023255552, msb_SORT_19=32, msb_SORT_190=4398046511104, msb_SORT_193=8796093022208, msb_SORT_196=17592186044416, msb_SORT_199=35184372088832, msb_SORT_202=70368744177664, msb_SORT_205=140737488355328, msb_SORT_208=281474976710656, msb_SORT_21=64, msb_SORT_211=562949953421312, msb_SORT_214=1125899906842624, msb_SORT_217=2251799813685248, msb_SORT_220=4503599627370496, msb_SORT_223=9007199254740992, msb_SORT_226=18014398509481984, msb_SORT_229=36028797018963968, msb_SORT_23=128, msb_SORT_232=72057594037927936, msb_SORT_235=144115188075855872, msb_SORT_238=288230376151711744, msb_SORT_241=576460752303423488, msb_SORT_244=1152921504606846976, msb_SORT_247=2305843009213693952, msb_SORT_25=256, msb_SORT_250=4611686018427387904, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_39=32768, msb_SORT_41=65536, msb_SORT_43=131072, msb_SORT_45=262144, msb_SORT_47=524288, msb_SORT_49=1048576, msb_SORT_51=2097152, msb_SORT_53=4194304, msb_SORT_55=8388608, msb_SORT_57=16777216, msb_SORT_59=33554432, msb_SORT_61=67108864, msb_SORT_63=134217728, msb_SORT_65=268435456, msb_SORT_67=536870912, msb_SORT_9=1073741824, state_103=4294967278, state_105=0, state_120=0, state_140=0, state_143=1, state_147=4, state_259=1, state_5=1, state_72=0, var_10=0, var_117=5, var_119=0, var_128=8, var_128_arg_0=1, var_129=255, var_129_arg_0=8, var_13=4, var_130=1, var_130_arg_0=1, var_130_arg_1=255, var_153=64, var_159=1, var_255=127, var_288=1, var_290=127, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_7=0, var_71=8, var_8=1] [L266] SORT_1 var_132_arg_0 = var_8; [L267] var_132_arg_0 = var_132_arg_0 & mask_SORT_1 [L268] SORT_39 var_132 = var_132_arg_0; [L269] SORT_39 var_133_arg_0 = state_120; [L270] SORT_39 var_133_arg_1 = var_132; [L271] SORT_1 var_133 = var_133_arg_0 <= var_133_arg_1; [L272] SORT_1 var_134_arg_0 = input_4; [L273] SORT_1 var_134_arg_1 = var_133; [L274] SORT_1 var_134 = var_134_arg_0 ^ var_134_arg_1; [L275] SORT_1 var_135_arg_0 = var_134; [L276] SORT_1 var_135 = ~var_135_arg_0; [L277] SORT_1 var_136_arg_0 = var_134; [L278] SORT_1 var_136 = ~var_136_arg_0; [L279] SORT_1 var_137_arg_0 = var_135; [L280] SORT_1 var_137_arg_1 = var_136; [L281] SORT_1 var_137 = var_137_arg_0 | var_137_arg_1; [L282] var_137 = var_137 & mask_SORT_1 [L283] SORT_1 constr_138_arg_0 = var_137; VAL [constr_131_arg_0=1, constr_138_arg_0=1, init_121_arg_1=0, input_2=10, input_3=1, input_4=0, mask_SORT_1=1, mask_SORT_11=4294967295, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_156=18446744073709551615, mask_SORT_157=18446744073709551615, mask_SORT_158=3, mask_SORT_166=18446744073709551615, mask_SORT_169=18446744073709551615, mask_SORT_17=31, mask_SORT_172=18446744073709551615, mask_SORT_175=18446744073709551615, mask_SORT_178=18446744073709551615, mask_SORT_181=18446744073709551615, mask_SORT_184=18446744073709551615, mask_SORT_187=18446744073709551615, mask_SORT_19=63, mask_SORT_190=18446744073709551615, mask_SORT_193=18446744073709551615, mask_SORT_196=18446744073709551615, mask_SORT_199=18446744073709551615, mask_SORT_202=18446744073709551615, mask_SORT_205=18446744073709551615, mask_SORT_208=18446744073709551615, mask_SORT_21=127, mask_SORT_211=18446744073709551615, mask_SORT_214=18446744073709551615, mask_SORT_217=18446744073709551615, mask_SORT_220=18446744073709551615, mask_SORT_223=18446744073709551615, mask_SORT_226=18446744073709551615, mask_SORT_229=18446744073709551615, mask_SORT_23=255, mask_SORT_232=18446744073709551615, mask_SORT_235=18446744073709551615, mask_SORT_238=18446744073709551615, mask_SORT_241=18446744073709551615, mask_SORT_244=18446744073709551615, mask_SORT_247=18446744073709551615, mask_SORT_25=511, mask_SORT_250=18446744073709551615, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=4294967295, mask_SORT_43=4294967295, mask_SORT_45=4294967295, mask_SORT_47=4294967295, mask_SORT_49=4294967295, mask_SORT_51=4294967295, mask_SORT_53=4294967295, mask_SORT_55=4294967295, mask_SORT_57=4294967295, mask_SORT_59=4294967295, mask_SORT_61=4294967295, mask_SORT_63=4294967295, mask_SORT_65=4294967295, mask_SORT_67=4294967295, mask_SORT_9=4294967295, msb_SORT_1=1, msb_SORT_11=2147483648, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_156=9223372036854775808, msb_SORT_157=8589934592, msb_SORT_158=2, msb_SORT_166=17179869184, msb_SORT_169=34359738368, msb_SORT_17=16, msb_SORT_172=68719476736, msb_SORT_175=137438953472, msb_SORT_178=274877906944, msb_SORT_181=549755813888, msb_SORT_184=1099511627776, msb_SORT_187=2199023255552, msb_SORT_19=32, msb_SORT_190=4398046511104, msb_SORT_193=8796093022208, msb_SORT_196=17592186044416, msb_SORT_199=35184372088832, msb_SORT_202=70368744177664, msb_SORT_205=140737488355328, msb_SORT_208=281474976710656, msb_SORT_21=64, msb_SORT_211=562949953421312, msb_SORT_214=1125899906842624, msb_SORT_217=2251799813685248, msb_SORT_220=4503599627370496, msb_SORT_223=9007199254740992, msb_SORT_226=18014398509481984, msb_SORT_229=36028797018963968, msb_SORT_23=128, msb_SORT_232=72057594037927936, msb_SORT_235=144115188075855872, msb_SORT_238=288230376151711744, msb_SORT_241=576460752303423488, msb_SORT_244=1152921504606846976, msb_SORT_247=2305843009213693952, msb_SORT_25=256, msb_SORT_250=4611686018427387904, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_39=32768, msb_SORT_41=65536, msb_SORT_43=131072, msb_SORT_45=262144, msb_SORT_47=524288, msb_SORT_49=1048576, msb_SORT_51=2097152, msb_SORT_53=4194304, msb_SORT_55=8388608, msb_SORT_57=16777216, msb_SORT_59=33554432, msb_SORT_61=67108864, msb_SORT_63=134217728, msb_SORT_65=268435456, msb_SORT_67=536870912, msb_SORT_9=1073741824, state_103=4294967278, state_105=0, state_120=0, state_140=0, state_143=1, state_147=4, state_259=1, state_5=1, state_72=0, var_10=0, var_117=5, var_119=0, var_128=8, var_128_arg_0=1, var_129=255, var_129_arg_0=8, var_13=4, var_130=1, var_130_arg_0=1, var_130_arg_1=255, var_132=1, var_132_arg_0=1, var_133=1, var_133_arg_0=0, var_133_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_137=1, var_137_arg_0=1, var_137_arg_1=1, var_153=64, var_159=1, var_255=127, var_288=1, var_290=127, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_7=0, var_71=8, var_8=1] [L284] CALL assume_abort_if_not(constr_138_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L284] RET assume_abort_if_not(constr_138_arg_0) VAL [constr_131_arg_0=1, constr_138_arg_0=1, init_121_arg_1=0, input_2=10, input_3=1, input_4=0, mask_SORT_1=1, mask_SORT_11=4294967295, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_156=18446744073709551615, mask_SORT_157=18446744073709551615, mask_SORT_158=3, mask_SORT_166=18446744073709551615, mask_SORT_169=18446744073709551615, mask_SORT_17=31, mask_SORT_172=18446744073709551615, mask_SORT_175=18446744073709551615, mask_SORT_178=18446744073709551615, mask_SORT_181=18446744073709551615, mask_SORT_184=18446744073709551615, mask_SORT_187=18446744073709551615, mask_SORT_19=63, mask_SORT_190=18446744073709551615, mask_SORT_193=18446744073709551615, mask_SORT_196=18446744073709551615, mask_SORT_199=18446744073709551615, mask_SORT_202=18446744073709551615, mask_SORT_205=18446744073709551615, mask_SORT_208=18446744073709551615, mask_SORT_21=127, mask_SORT_211=18446744073709551615, mask_SORT_214=18446744073709551615, mask_SORT_217=18446744073709551615, mask_SORT_220=18446744073709551615, mask_SORT_223=18446744073709551615, mask_SORT_226=18446744073709551615, mask_SORT_229=18446744073709551615, mask_SORT_23=255, mask_SORT_232=18446744073709551615, mask_SORT_235=18446744073709551615, mask_SORT_238=18446744073709551615, mask_SORT_241=18446744073709551615, mask_SORT_244=18446744073709551615, mask_SORT_247=18446744073709551615, mask_SORT_25=511, mask_SORT_250=18446744073709551615, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=4294967295, mask_SORT_43=4294967295, mask_SORT_45=4294967295, mask_SORT_47=4294967295, mask_SORT_49=4294967295, mask_SORT_51=4294967295, mask_SORT_53=4294967295, mask_SORT_55=4294967295, mask_SORT_57=4294967295, mask_SORT_59=4294967295, mask_SORT_61=4294967295, mask_SORT_63=4294967295, mask_SORT_65=4294967295, mask_SORT_67=4294967295, mask_SORT_9=4294967295, msb_SORT_1=1, msb_SORT_11=2147483648, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_156=9223372036854775808, msb_SORT_157=8589934592, msb_SORT_158=2, msb_SORT_166=17179869184, msb_SORT_169=34359738368, msb_SORT_17=16, msb_SORT_172=68719476736, msb_SORT_175=137438953472, msb_SORT_178=274877906944, msb_SORT_181=549755813888, msb_SORT_184=1099511627776, msb_SORT_187=2199023255552, msb_SORT_19=32, msb_SORT_190=4398046511104, msb_SORT_193=8796093022208, msb_SORT_196=17592186044416, msb_SORT_199=35184372088832, msb_SORT_202=70368744177664, msb_SORT_205=140737488355328, msb_SORT_208=281474976710656, msb_SORT_21=64, msb_SORT_211=562949953421312, msb_SORT_214=1125899906842624, msb_SORT_217=2251799813685248, msb_SORT_220=4503599627370496, msb_SORT_223=9007199254740992, msb_SORT_226=18014398509481984, msb_SORT_229=36028797018963968, msb_SORT_23=128, msb_SORT_232=72057594037927936, msb_SORT_235=144115188075855872, msb_SORT_238=288230376151711744, msb_SORT_241=576460752303423488, msb_SORT_244=1152921504606846976, msb_SORT_247=2305843009213693952, msb_SORT_25=256, msb_SORT_250=4611686018427387904, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_39=32768, msb_SORT_41=65536, msb_SORT_43=131072, msb_SORT_45=262144, msb_SORT_47=524288, msb_SORT_49=1048576, msb_SORT_51=2097152, msb_SORT_53=4194304, msb_SORT_55=8388608, msb_SORT_57=16777216, msb_SORT_59=33554432, msb_SORT_61=67108864, msb_SORT_63=134217728, msb_SORT_65=268435456, msb_SORT_67=536870912, msb_SORT_9=1073741824, state_103=4294967278, state_105=0, state_120=0, state_140=0, state_143=1, state_147=4, state_259=1, state_5=1, state_72=0, var_10=0, var_117=5, var_119=0, var_128=8, var_128_arg_0=1, var_129=255, var_129_arg_0=8, var_13=4, var_130=1, var_130_arg_0=1, var_130_arg_1=255, var_132=1, var_132_arg_0=1, var_133=1, var_133_arg_0=0, var_133_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=1, var_135=1, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_137=1, var_137_arg_0=1, var_137_arg_1=1, var_153=64, var_159=1, var_255=127, var_288=1, var_290=127, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_7=0, var_71=8, var_8=1] [L286] SORT_12 var_118_arg_0 = var_117; [L287] var_118_arg_0 = var_118_arg_0 & mask_SORT_12 [L288] SORT_39 var_118 = var_118_arg_0; [L289] SORT_39 var_122_arg_0 = var_118; [L290] SORT_39 var_122_arg_1 = state_120; [L291] SORT_1 var_122 = var_122_arg_0 < var_122_arg_1; [L292] SORT_1 var_14_arg_0 = input_3; [L293] SORT_1 var_14 = ~var_14_arg_0; [L294] SORT_1 var_16_arg_0 = var_14; [L295] SORT_12 var_16_arg_1 = var_13; [L296] SORT_15 var_16 = ((SORT_15)var_16_arg_0 << 3) | var_16_arg_1; [L297] var_16 = var_16 & mask_SORT_15 [L298] SORT_1 var_18_arg_0 = input_3; [L299] SORT_15 var_18_arg_1 = var_16; [L300] SORT_17 var_18 = ((SORT_17)var_18_arg_0 << 4) | var_18_arg_1; [L301] var_18 = var_18 & mask_SORT_17 [L302] SORT_1 var_20_arg_0 = input_3; [L303] SORT_17 var_20_arg_1 = var_18; [L304] SORT_19 var_20 = ((SORT_19)var_20_arg_0 << 5) | var_20_arg_1; [L305] var_20 = var_20 & mask_SORT_19 [L306] SORT_1 var_22_arg_0 = input_3; [L307] SORT_19 var_22_arg_1 = var_20; [L308] SORT_21 var_22 = ((SORT_21)var_22_arg_0 << 6) | var_22_arg_1; [L309] var_22 = var_22 & mask_SORT_21 [L310] SORT_1 var_24_arg_0 = input_3; [L311] SORT_21 var_24_arg_1 = var_22; [L312] SORT_23 var_24 = ((SORT_23)var_24_arg_0 << 7) | var_24_arg_1; [L313] var_24 = var_24 & mask_SORT_23 [L314] SORT_1 var_26_arg_0 = input_3; [L315] SORT_23 var_26_arg_1 = var_24; [L316] SORT_25 var_26 = ((SORT_25)var_26_arg_0 << 8) | var_26_arg_1; [L317] var_26 = var_26 & mask_SORT_25 [L318] SORT_1 var_28_arg_0 = var_14; [L319] SORT_25 var_28_arg_1 = var_26; [L320] SORT_27 var_28 = ((SORT_27)var_28_arg_0 << 9) | var_28_arg_1; [L321] var_28 = var_28 & mask_SORT_27 [L322] SORT_1 var_30_arg_0 = var_14; [L323] SORT_27 var_30_arg_1 = var_28; [L324] SORT_29 var_30 = ((SORT_29)var_30_arg_0 << 10) | var_30_arg_1; [L325] var_30 = var_30 & mask_SORT_29 [L326] SORT_1 var_32_arg_0 = var_14; [L327] SORT_29 var_32_arg_1 = var_30; [L328] SORT_31 var_32 = ((SORT_31)var_32_arg_0 << 11) | var_32_arg_1; [L329] var_32 = var_32 & mask_SORT_31 [L330] SORT_1 var_34_arg_0 = var_14; [L331] SORT_31 var_34_arg_1 = var_32; [L332] SORT_33 var_34 = ((SORT_33)var_34_arg_0 << 12) | var_34_arg_1; [L333] var_34 = var_34 & mask_SORT_33 [L334] SORT_1 var_36_arg_0 = var_14; [L335] SORT_33 var_36_arg_1 = var_34; [L336] SORT_35 var_36 = ((SORT_35)var_36_arg_0 << 13) | var_36_arg_1; [L337] var_36 = var_36 & mask_SORT_35 [L338] SORT_1 var_38_arg_0 = var_14; [L339] SORT_35 var_38_arg_1 = var_36; [L340] SORT_37 var_38 = ((SORT_37)var_38_arg_0 << 14) | var_38_arg_1; [L341] var_38 = var_38 & mask_SORT_37 [L342] SORT_1 var_40_arg_0 = var_14; [L343] SORT_37 var_40_arg_1 = var_38; [L344] SORT_39 var_40 = ((SORT_39)var_40_arg_0 << 15) | var_40_arg_1; [L345] var_40 = var_40 & mask_SORT_39 [L346] SORT_1 var_42_arg_0 = var_14; [L347] SORT_39 var_42_arg_1 = var_40; [L348] SORT_41 var_42 = ((SORT_41)var_42_arg_0 << 16) | var_42_arg_1; [L349] var_42 = var_42 & mask_SORT_41 [L350] SORT_1 var_44_arg_0 = var_14; [L351] SORT_41 var_44_arg_1 = var_42; [L352] SORT_43 var_44 = ((SORT_43)var_44_arg_0 << 17) | var_44_arg_1; [L353] var_44 = var_44 & mask_SORT_43 [L354] SORT_1 var_46_arg_0 = var_14; [L355] SORT_43 var_46_arg_1 = var_44; [L356] SORT_45 var_46 = ((SORT_45)var_46_arg_0 << 18) | var_46_arg_1; [L357] var_46 = var_46 & mask_SORT_45 [L358] SORT_1 var_48_arg_0 = var_14; [L359] SORT_45 var_48_arg_1 = var_46; [L360] SORT_47 var_48 = ((SORT_47)var_48_arg_0 << 19) | var_48_arg_1; [L361] var_48 = var_48 & mask_SORT_47 [L362] SORT_1 var_50_arg_0 = var_14; [L363] SORT_47 var_50_arg_1 = var_48; [L364] SORT_49 var_50 = ((SORT_49)var_50_arg_0 << 20) | var_50_arg_1; [L365] var_50 = var_50 & mask_SORT_49 [L366] SORT_1 var_52_arg_0 = var_14; [L367] SORT_49 var_52_arg_1 = var_50; [L368] SORT_51 var_52 = ((SORT_51)var_52_arg_0 << 21) | var_52_arg_1; [L369] var_52 = var_52 & mask_SORT_51 [L370] SORT_1 var_54_arg_0 = var_14; [L371] SORT_51 var_54_arg_1 = var_52; [L372] SORT_53 var_54 = ((SORT_53)var_54_arg_0 << 22) | var_54_arg_1; [L373] var_54 = var_54 & mask_SORT_53 [L374] SORT_1 var_56_arg_0 = var_14; [L375] SORT_53 var_56_arg_1 = var_54; [L376] SORT_55 var_56 = ((SORT_55)var_56_arg_0 << 23) | var_56_arg_1; [L377] var_56 = var_56 & mask_SORT_55 [L378] SORT_1 var_58_arg_0 = var_14; [L379] SORT_55 var_58_arg_1 = var_56; [L380] SORT_57 var_58 = ((SORT_57)var_58_arg_0 << 24) | var_58_arg_1; [L381] var_58 = var_58 & mask_SORT_57 [L382] SORT_1 var_60_arg_0 = var_14; [L383] SORT_57 var_60_arg_1 = var_58; [L384] SORT_59 var_60 = ((SORT_59)var_60_arg_0 << 25) | var_60_arg_1; [L385] var_60 = var_60 & mask_SORT_59 [L386] SORT_1 var_62_arg_0 = var_14; [L387] SORT_59 var_62_arg_1 = var_60; [L388] SORT_61 var_62 = ((SORT_61)var_62_arg_0 << 26) | var_62_arg_1; [L389] var_62 = var_62 & mask_SORT_61 [L390] SORT_1 var_64_arg_0 = var_14; [L391] SORT_61 var_64_arg_1 = var_62; [L392] SORT_63 var_64 = ((SORT_63)var_64_arg_0 << 27) | var_64_arg_1; [L393] var_64 = var_64 & mask_SORT_63 [L394] SORT_1 var_66_arg_0 = var_14; [L395] SORT_63 var_66_arg_1 = var_64; [L396] SORT_65 var_66 = ((SORT_65)var_66_arg_0 << 28) | var_66_arg_1; [L397] var_66 = var_66 & mask_SORT_65 [L398] SORT_1 var_68_arg_0 = var_14; [L399] SORT_65 var_68_arg_1 = var_66; [L400] SORT_67 var_68 = ((SORT_67)var_68_arg_0 << 29) | var_68_arg_1; [L401] var_68 = var_68 & mask_SORT_67 [L402] SORT_1 var_69_arg_0 = var_14; [L403] SORT_67 var_69_arg_1 = var_68; [L404] SORT_9 var_69 = ((SORT_9)var_69_arg_0 << 30) | var_69_arg_1; [L405] var_69 = var_69 & mask_SORT_9 [L406] SORT_1 var_70_arg_0 = var_14; [L407] SORT_9 var_70_arg_1 = var_69; [L408] SORT_11 var_70 = ((SORT_11)var_70_arg_0 << 31) | var_70_arg_1; [L409] SORT_1 var_73_arg_0 = state_72; [L410] SORT_1 var_73 = ~var_73_arg_0; [L411] SORT_1 var_74_arg_0 = var_73; [L412] SORT_15 var_74_arg_1 = var_71; [L413] SORT_17 var_74 = ((SORT_17)var_74_arg_0 << 4) | var_74_arg_1; [L414] var_74 = var_74 & mask_SORT_17 [L415] SORT_1 var_75_arg_0 = var_73; [L416] SORT_17 var_75_arg_1 = var_74; [L417] SORT_19 var_75 = ((SORT_19)var_75_arg_0 << 5) | var_75_arg_1; [L418] var_75 = var_75 & mask_SORT_19 [L419] SORT_1 var_76_arg_0 = state_72; [L420] SORT_19 var_76_arg_1 = var_75; [L421] SORT_21 var_76 = ((SORT_21)var_76_arg_0 << 6) | var_76_arg_1; [L422] var_76 = var_76 & mask_SORT_21 [L423] SORT_1 var_77_arg_0 = state_72; [L424] SORT_21 var_77_arg_1 = var_76; [L425] SORT_23 var_77 = ((SORT_23)var_77_arg_0 << 7) | var_77_arg_1; [L426] var_77 = var_77 & mask_SORT_23 [L427] SORT_1 var_78_arg_0 = var_73; [L428] SORT_23 var_78_arg_1 = var_77; [L429] SORT_25 var_78 = ((SORT_25)var_78_arg_0 << 8) | var_78_arg_1; [L430] var_78 = var_78 & mask_SORT_25 [L431] SORT_1 var_79_arg_0 = var_73; [L432] SORT_25 var_79_arg_1 = var_78; [L433] SORT_27 var_79 = ((SORT_27)var_79_arg_0 << 9) | var_79_arg_1; [L434] var_79 = var_79 & mask_SORT_27 [L435] SORT_1 var_80_arg_0 = var_73; [L436] SORT_27 var_80_arg_1 = var_79; [L437] SORT_29 var_80 = ((SORT_29)var_80_arg_0 << 10) | var_80_arg_1; [L438] var_80 = var_80 & mask_SORT_29 [L439] SORT_1 var_81_arg_0 = var_73; [L440] SORT_29 var_81_arg_1 = var_80; [L441] SORT_31 var_81 = ((SORT_31)var_81_arg_0 << 11) | var_81_arg_1; [L442] var_81 = var_81 & mask_SORT_31 [L443] SORT_1 var_82_arg_0 = var_73; [L444] SORT_31 var_82_arg_1 = var_81; [L445] SORT_33 var_82 = ((SORT_33)var_82_arg_0 << 12) | var_82_arg_1; [L446] var_82 = var_82 & mask_SORT_33 [L447] SORT_1 var_83_arg_0 = var_73; [L448] SORT_33 var_83_arg_1 = var_82; [L449] SORT_35 var_83 = ((SORT_35)var_83_arg_0 << 13) | var_83_arg_1; [L450] var_83 = var_83 & mask_SORT_35 [L451] SORT_1 var_84_arg_0 = var_73; [L452] SORT_35 var_84_arg_1 = var_83; [L453] SORT_37 var_84 = ((SORT_37)var_84_arg_0 << 14) | var_84_arg_1; [L454] var_84 = var_84 & mask_SORT_37 [L455] SORT_1 var_85_arg_0 = var_73; [L456] SORT_37 var_85_arg_1 = var_84; [L457] SORT_39 var_85 = ((SORT_39)var_85_arg_0 << 15) | var_85_arg_1; [L458] var_85 = var_85 & mask_SORT_39 [L459] SORT_1 var_86_arg_0 = var_73; [L460] SORT_39 var_86_arg_1 = var_85; [L461] SORT_41 var_86 = ((SORT_41)var_86_arg_0 << 16) | var_86_arg_1; [L462] var_86 = var_86 & mask_SORT_41 [L463] SORT_1 var_87_arg_0 = var_73; [L464] SORT_41 var_87_arg_1 = var_86; [L465] SORT_43 var_87 = ((SORT_43)var_87_arg_0 << 17) | var_87_arg_1; [L466] var_87 = var_87 & mask_SORT_43 [L467] SORT_1 var_88_arg_0 = var_73; [L468] SORT_43 var_88_arg_1 = var_87; [L469] SORT_45 var_88 = ((SORT_45)var_88_arg_0 << 18) | var_88_arg_1; [L470] var_88 = var_88 & mask_SORT_45 [L471] SORT_1 var_89_arg_0 = var_73; [L472] SORT_45 var_89_arg_1 = var_88; [L473] SORT_47 var_89 = ((SORT_47)var_89_arg_0 << 19) | var_89_arg_1; [L474] var_89 = var_89 & mask_SORT_47 [L475] SORT_1 var_90_arg_0 = var_73; [L476] SORT_47 var_90_arg_1 = var_89; [L477] SORT_49 var_90 = ((SORT_49)var_90_arg_0 << 20) | var_90_arg_1; [L478] var_90 = var_90 & mask_SORT_49 [L479] SORT_1 var_91_arg_0 = var_73; [L480] SORT_49 var_91_arg_1 = var_90; [L481] SORT_51 var_91 = ((SORT_51)var_91_arg_0 << 21) | var_91_arg_1; [L482] var_91 = var_91 & mask_SORT_51 [L483] SORT_1 var_92_arg_0 = var_73; [L484] SORT_51 var_92_arg_1 = var_91; [L485] SORT_53 var_92 = ((SORT_53)var_92_arg_0 << 22) | var_92_arg_1; [L486] var_92 = var_92 & mask_SORT_53 [L487] SORT_1 var_93_arg_0 = var_73; [L488] SORT_53 var_93_arg_1 = var_92; [L489] SORT_55 var_93 = ((SORT_55)var_93_arg_0 << 23) | var_93_arg_1; [L490] var_93 = var_93 & mask_SORT_55 [L491] SORT_1 var_94_arg_0 = var_73; [L492] SORT_55 var_94_arg_1 = var_93; [L493] SORT_57 var_94 = ((SORT_57)var_94_arg_0 << 24) | var_94_arg_1; [L494] var_94 = var_94 & mask_SORT_57 [L495] SORT_1 var_95_arg_0 = var_73; [L496] SORT_57 var_95_arg_1 = var_94; [L497] SORT_59 var_95 = ((SORT_59)var_95_arg_0 << 25) | var_95_arg_1; [L498] var_95 = var_95 & mask_SORT_59 [L499] SORT_1 var_96_arg_0 = var_73; [L500] SORT_59 var_96_arg_1 = var_95; [L501] SORT_61 var_96 = ((SORT_61)var_96_arg_0 << 26) | var_96_arg_1; [L502] var_96 = var_96 & mask_SORT_61 [L503] SORT_1 var_97_arg_0 = var_73; [L504] SORT_61 var_97_arg_1 = var_96; [L505] SORT_63 var_97 = ((SORT_63)var_97_arg_0 << 27) | var_97_arg_1; [L506] var_97 = var_97 & mask_SORT_63 [L507] SORT_1 var_98_arg_0 = var_73; [L508] SORT_63 var_98_arg_1 = var_97; [L509] SORT_65 var_98 = ((SORT_65)var_98_arg_0 << 28) | var_98_arg_1; [L510] var_98 = var_98 & mask_SORT_65 [L511] SORT_1 var_99_arg_0 = var_73; [L512] SORT_65 var_99_arg_1 = var_98; [L513] SORT_67 var_99 = ((SORT_67)var_99_arg_0 << 29) | var_99_arg_1; [L514] var_99 = var_99 & mask_SORT_67 [L515] SORT_1 var_100_arg_0 = var_73; [L516] SORT_67 var_100_arg_1 = var_99; [L517] SORT_9 var_100 = ((SORT_9)var_100_arg_0 << 30) | var_100_arg_1; [L518] var_100 = var_100 & mask_SORT_9 [L519] SORT_1 var_101_arg_0 = var_73; [L520] SORT_9 var_101_arg_1 = var_100; [L521] SORT_11 var_101 = ((SORT_11)var_101_arg_0 << 31) | var_101_arg_1; [L522] SORT_11 var_102_arg_0 = var_70; [L523] SORT_11 var_102_arg_1 = var_101; [L524] SORT_11 var_102 = var_102_arg_0 + var_102_arg_1; [L525] SORT_11 var_104_arg_0 = state_103; [L526] SORT_11 var_104 = -var_104_arg_0; [L527] SORT_1 var_106_arg_0 = state_105; [L528] SORT_11 var_106_arg_1 = var_104; [L529] SORT_11 var_106_arg_2 = state_103; [L530] EXPR var_106_arg_0 ? var_106_arg_1 : var_106_arg_2 [L530] SORT_11 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L531] SORT_11 var_107_arg_0 = var_102; [L532] SORT_11 var_107_arg_1 = var_106; [L533] SORT_11 var_107 = var_107_arg_0 + var_107_arg_1; [L534] SORT_11 var_108_arg_0 = var_107; [L535] SORT_1 var_108 = var_108_arg_0 >> 31; [L536] SORT_1 var_109_arg_0 = var_108; [L537] SORT_9 var_109_arg_1 = var_10; [L538] SORT_11 var_109 = ((SORT_11)var_109_arg_0 << 31) | var_109_arg_1; [L539] var_109 = var_109 & mask_SORT_11 [L540] SORT_11 var_110_arg_0 = var_107; [L541] SORT_9 var_110 = var_110_arg_0 >> 0; [L542] SORT_9 var_111_arg_0 = var_110; [L543] var_111_arg_0 = var_111_arg_0 & mask_SORT_9 [L544] SORT_11 var_111 = var_111_arg_0; [L545] SORT_11 var_112_arg_0 = var_109; [L546] SORT_11 var_112_arg_1 = var_111; [L547] SORT_1 var_112 = var_112_arg_0 <= var_112_arg_1; [L548] SORT_1 var_113_arg_0 = var_112; [L549] SORT_1 var_113_arg_1 = var_8; [L550] SORT_1 var_113_arg_2 = var_7; [L551] EXPR var_113_arg_0 ? var_113_arg_1 : var_113_arg_2 [L551] SORT_1 var_113 = var_113_arg_0 ? var_113_arg_1 : var_113_arg_2; [L552] var_113 = var_113 & mask_SORT_1 [L553] SORT_1 var_114_arg_0 = input_3; [L554] SORT_1 var_114_arg_1 = var_113; [L555] SORT_1 var_114 = var_114_arg_0 ^ var_114_arg_1; [L556] SORT_1 var_115_arg_0 = var_114; [L557] SORT_1 var_115 = ~var_115_arg_0; [L558] SORT_1 var_123_arg_0 = var_122; [L559] SORT_1 var_123_arg_1 = var_115; [L560] SORT_1 var_123_arg_2 = var_8; [L561] EXPR var_123_arg_0 ? var_123_arg_1 : var_123_arg_2 [L561] SORT_1 var_123 = var_123_arg_0 ? var_123_arg_1 : var_123_arg_2; [L562] SORT_1 var_124_arg_0 = var_123; [L563] SORT_1 var_124 = ~var_124_arg_0; [L564] SORT_1 var_125_arg_0 = var_123; [L565] SORT_1 var_125 = ~var_125_arg_0; [L566] SORT_1 var_126_arg_0 = var_124; [L567] SORT_1 var_126_arg_1 = var_125; [L568] SORT_1 var_126 = var_126_arg_0 & var_126_arg_1; [L569] var_126 = var_126 & mask_SORT_1 [L570] SORT_1 bad_127_arg_0 = var_126; [L571] CALL __VERIFIER_assert(!(bad_127_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.0s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 03:32:09,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fc62610a4219624ba1b65e937db0086d4a06c21628bb87b5f81a8591bf53b9b6 --- 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-5e519f3 [2022-11-03 03:32:12,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:32:12,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:32:12,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:32:12,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:32:12,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:32:12,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:32:12,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:32:12,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:32:12,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:32:12,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:32:12,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:32:12,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:32:12,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:32:12,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:32:12,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:32:12,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:32:12,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:32:12,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:32:12,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:32:12,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:32:12,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:32:12,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:32:12,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:32:12,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:32:12,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:32:12,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:32:12,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:32:12,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:32:12,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:32:12,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:32:12,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:32:12,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:32:12,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:32:12,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:32:12,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:32:12,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:32:12,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:32:12,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:32:12,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:32:12,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:32:12,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 03:32:12,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:32:12,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:32:12,197 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:32:12,197 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:32:12,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:32:12,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:32:12,199 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:32:12,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:32:12,199 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:32:12,199 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:32:12,200 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:32:12,201 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:32:12,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:32:12,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:32:12,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:32:12,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:32:12,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:32:12,203 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:32:12,203 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:32:12,203 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:32:12,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:32:12,204 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:32:12,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:32:12,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:32:12,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:32:12,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:32:12,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:32:12,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:32:12,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:32:12,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:32:12,206 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:32:12,206 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:12,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:32:12,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:32:12,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:32:12,207 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc62610a4219624ba1b65e937db0086d4a06c21628bb87b5f81a8591bf53b9b6 [2022-11-03 03:32:12,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:32:12,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:32:12,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:32:12,631 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:32:12,634 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:32:12,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2022-11-03 03:32:12,715 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data/a087eaf93/9bec5b1b533d4f8b9952407916d4000e/FLAGcf7e000d9 [2022-11-03 03:32:13,437 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:32:13,438 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2022-11-03 03:32:13,453 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data/a087eaf93/9bec5b1b533d4f8b9952407916d4000e/FLAGcf7e000d9 [2022-11-03 03:32:13,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/data/a087eaf93/9bec5b1b533d4f8b9952407916d4000e [2022-11-03 03:32:13,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:32:13,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:32:13,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:32:13,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:32:13,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:32:13,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:32:13" (1/1) ... [2022-11-03 03:32:13,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187dad62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:13, skipping insertion in model container [2022-11-03 03:32:13,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:32:13" (1/1) ... [2022-11-03 03:32:13,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:32:13,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:32:14,039 WARN L230 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_f10b5009-50fa-4888-bd5d-71ec85b327e2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1132,1145] [2022-11-03 03:32:14,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:32:14,333 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:32:14,344 WARN L230 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_f10b5009-50fa-4888-bd5d-71ec85b327e2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1132,1145] [2022-11-03 03:32:14,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:32:14,577 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:32:14,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14 WrapperNode [2022-11-03 03:32:14,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:32:14,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:32:14,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:32:14,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:32:14,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,662 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 840 [2022-11-03 03:32:14,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:32:14,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:32:14,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:32:14,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:32:14,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,726 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:32:14,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:32:14,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:32:14,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:32:14,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (1/1) ... [2022-11-03 03:32:14,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:32:14,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:14,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:32:14,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:32:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:32:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:32:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:32:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:32:15,119 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:32:15,137 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:32:16,246 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:32:16,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:32:16,259 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:32:16,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:32:16 BoogieIcfgContainer [2022-11-03 03:32:16,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:32:16,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:32:16,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:32:16,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:32:16,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:32:13" (1/3) ... [2022-11-03 03:32:16,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134db4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:32:16, skipping insertion in model container [2022-11-03 03:32:16,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:14" (2/3) ... [2022-11-03 03:32:16,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134db4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:32:16, skipping insertion in model container [2022-11-03 03:32:16,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:32:16" (3/3) ... [2022-11-03 03:32:16,271 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2022-11-03 03:32:16,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:32:16,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:32:16,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:32:16,361 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=FINITE_AUTOMATA, 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;@7ccfa83d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:32:16,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:32:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 62 states have (on average 1.467741935483871) internal successors, (91), 63 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 03:32:16,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 03:32:16,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:16,375 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:16,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:16,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:16,382 INFO L85 PathProgramCache]: Analyzing trace with hash -450479395, now seen corresponding path program 1 times [2022-11-03 03:32:16,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:16,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824878942] [2022-11-03 03:32:16,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:16,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:16,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:16,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:16,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:32:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:16,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 03:32:16,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:32:16,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:16,907 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:16,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824878942] [2022-11-03 03:32:16,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824878942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:16,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:16,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:32:16,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648760726] [2022-11-03 03:32:16,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:16,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:32:16,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:16,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:32:16,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:32:16,958 INFO L87 Difference]: Start difference. First operand has 67 states, 62 states have (on average 1.467741935483871) internal successors, (91), 63 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 03:32:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:16,997 INFO L93 Difference]: Finished difference Result 128 states and 187 transitions. [2022-11-03 03:32:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:32:17,000 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-11-03 03:32:17,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:17,009 INFO L225 Difference]: With dead ends: 128 [2022-11-03 03:32:17,009 INFO L226 Difference]: Without dead ends: 63 [2022-11-03 03:32:17,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:32:17,016 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:17,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:32:17,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-03 03:32:17,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-03 03:32:17,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 59 states have (on average 1.423728813559322) internal successors, (84), 59 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 03:32:17,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2022-11-03 03:32:17,073 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 88 transitions. Word has length 23 [2022-11-03 03:32:17,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:17,073 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 88 transitions. [2022-11-03 03:32:17,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 03:32:17,074 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 88 transitions. [2022-11-03 03:32:17,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 03:32:17,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:17,076 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:17,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:17,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:17,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:17,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:17,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2108508633, now seen corresponding path program 1 times [2022-11-03 03:32:17,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:17,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166024575] [2022-11-03 03:32:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:17,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:17,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:17,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:17,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 03:32:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:17,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 03:32:17,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 03:32:17,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:17,925 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:17,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166024575] [2022-11-03 03:32:17,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166024575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:17,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:17,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:32:17,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434224705] [2022-11-03 03:32:17,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:17,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:32:17,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:17,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:32:17,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:32:17,936 INFO L87 Difference]: Start difference. First operand 63 states and 88 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:32:18,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:18,241 INFO L93 Difference]: Finished difference Result 131 states and 186 transitions. [2022-11-03 03:32:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:32:18,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-03 03:32:18,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:18,243 INFO L225 Difference]: With dead ends: 131 [2022-11-03 03:32:18,243 INFO L226 Difference]: Without dead ends: 129 [2022-11-03 03:32:18,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 03:32:18,245 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 364 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:18,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 275 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:32:18,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-03 03:32:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 65. [2022-11-03 03:32:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 61 states have internal predecessors, (86), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 03:32:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2022-11-03 03:32:18,257 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 23 [2022-11-03 03:32:18,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:18,258 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2022-11-03 03:32:18,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:32:18,258 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2022-11-03 03:32:18,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 03:32:18,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:18,260 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:18,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:18,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:18,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:18,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2108449051, now seen corresponding path program 1 times [2022-11-03 03:32:18,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:18,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163723998] [2022-11-03 03:32:18,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:18,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:18,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:18,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:18,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 03:32:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:18,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:32:18,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 03:32:18,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:18,946 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:18,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163723998] [2022-11-03 03:32:18,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163723998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:18,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:18,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:32:18,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904270328] [2022-11-03 03:32:18,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:18,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:32:18,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:18,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:32:18,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:32:18,950 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:32:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:19,195 INFO L93 Difference]: Finished difference Result 240 states and 343 transitions. [2022-11-03 03:32:19,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:32:19,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-03 03:32:19,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:19,198 INFO L225 Difference]: With dead ends: 240 [2022-11-03 03:32:19,198 INFO L226 Difference]: Without dead ends: 177 [2022-11-03 03:32:19,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:32:19,200 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 289 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:19,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 367 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:32:19,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-03 03:32:19,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 75. [2022-11-03 03:32:19,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.391304347826087) internal successors, (96), 69 states have internal predecessors, (96), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:32:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2022-11-03 03:32:19,212 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 23 [2022-11-03 03:32:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:19,212 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2022-11-03 03:32:19,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:32:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2022-11-03 03:32:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:19,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:19,215 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:19,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:19,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:19,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:19,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:19,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2135365673, now seen corresponding path program 1 times [2022-11-03 03:32:19,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:19,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008478610] [2022-11-03 03:32:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:19,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:19,440 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:19,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 03:32:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:20,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:32:20,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:20,319 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 03:32:20,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:20,319 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:20,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008478610] [2022-11-03 03:32:20,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008478610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:20,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:20,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:32:20,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910477120] [2022-11-03 03:32:20,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:20,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:32:20,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:20,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:32:20,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:32:20,322 INFO L87 Difference]: Start difference. First operand 75 states and 104 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:20,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:20,364 INFO L93 Difference]: Finished difference Result 146 states and 203 transitions. [2022-11-03 03:32:20,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:32:20,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-11-03 03:32:20,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:20,366 INFO L225 Difference]: With dead ends: 146 [2022-11-03 03:32:20,366 INFO L226 Difference]: Without dead ends: 83 [2022-11-03 03:32:20,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:32:20,367 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 4 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:20,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 466 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 37 Unchecked, 0.0s Time] [2022-11-03 03:32:20,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-03 03:32:20,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-03 03:32:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 77 states have internal predecessors, (106), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:32:20,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 114 transitions. [2022-11-03 03:32:20,378 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 114 transitions. Word has length 86 [2022-11-03 03:32:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:20,379 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 114 transitions. [2022-11-03 03:32:20,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions. [2022-11-03 03:32:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:20,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:20,382 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:20,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:20,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:20,603 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:20,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:20,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1598901845, now seen corresponding path program 1 times [2022-11-03 03:32:20,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:20,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045096238] [2022-11-03 03:32:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:20,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:20,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:20,606 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:20,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 03:32:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:21,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:32:21,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:21,535 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 03:32:21,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:21,535 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:21,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045096238] [2022-11-03 03:32:21,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045096238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:21,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:21,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:32:21,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460681687] [2022-11-03 03:32:21,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:21,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:32:21,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:21,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:32:21,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:32:21,538 INFO L87 Difference]: Start difference. First operand 83 states and 114 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:21,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:21,601 INFO L93 Difference]: Finished difference Result 146 states and 202 transitions. [2022-11-03 03:32:21,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:32:21,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-11-03 03:32:21,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:21,603 INFO L225 Difference]: With dead ends: 146 [2022-11-03 03:32:21,603 INFO L226 Difference]: Without dead ends: 83 [2022-11-03 03:32:21,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:32:21,604 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 63 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:21,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 166 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:32:21,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-03 03:32:21,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-03 03:32:21,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:32:21,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 113 transitions. [2022-11-03 03:32:21,614 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 113 transitions. Word has length 86 [2022-11-03 03:32:21,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:21,614 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 113 transitions. [2022-11-03 03:32:21,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:21,615 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 113 transitions. [2022-11-03 03:32:21,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:21,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:21,616 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:21,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-03 03:32:21,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:21,841 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:21,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:21,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1435148201, now seen corresponding path program 1 times [2022-11-03 03:32:21,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:21,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706312301] [2022-11-03 03:32:21,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:21,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:21,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:21,843 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:21,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 03:32:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:22,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:32:22,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:22,742 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 03:32:22,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:22,743 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:22,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706312301] [2022-11-03 03:32:22,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706312301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:22,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:22,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:32:22,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163643626] [2022-11-03 03:32:22,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:22,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:32:22,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:22,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:32:22,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:32:22,746 INFO L87 Difference]: Start difference. First operand 83 states and 113 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:22,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:22,904 INFO L93 Difference]: Finished difference Result 146 states and 200 transitions. [2022-11-03 03:32:22,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:32:22,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-11-03 03:32:22,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:22,906 INFO L225 Difference]: With dead ends: 146 [2022-11-03 03:32:22,906 INFO L226 Difference]: Without dead ends: 83 [2022-11-03 03:32:22,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:32:22,907 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 58 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:22,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 164 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:32:22,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-03 03:32:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-03 03:32:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:32:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 112 transitions. [2022-11-03 03:32:22,918 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 112 transitions. Word has length 86 [2022-11-03 03:32:22,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:22,918 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 112 transitions. [2022-11-03 03:32:22,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 112 transitions. [2022-11-03 03:32:22,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:22,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:22,920 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:22,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:23,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:23,143 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:23,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:23,144 INFO L85 PathProgramCache]: Analyzing trace with hash -991247527, now seen corresponding path program 1 times [2022-11-03 03:32:23,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:23,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47202269] [2022-11-03 03:32:23,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:23,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:23,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:23,146 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:23,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 03:32:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:23,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:32:23,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 03:32:24,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:24,174 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:24,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47202269] [2022-11-03 03:32:24,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47202269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:24,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:24,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:32:24,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029092844] [2022-11-03 03:32:24,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:24,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:32:24,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:24,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:32:24,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:32:24,176 INFO L87 Difference]: Start difference. First operand 83 states and 112 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:24,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:24,225 INFO L93 Difference]: Finished difference Result 160 states and 217 transitions. [2022-11-03 03:32:24,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:32:24,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-11-03 03:32:24,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:24,227 INFO L225 Difference]: With dead ends: 160 [2022-11-03 03:32:24,227 INFO L226 Difference]: Without dead ends: 97 [2022-11-03 03:32:24,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:32:24,228 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 25 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:24,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 349 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2022-11-03 03:32:24,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-03 03:32:24,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-11-03 03:32:24,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:32:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 130 transitions. [2022-11-03 03:32:24,237 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 130 transitions. Word has length 86 [2022-11-03 03:32:24,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:24,238 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 130 transitions. [2022-11-03 03:32:24,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:24,238 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 130 transitions. [2022-11-03 03:32:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:24,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:24,240 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:24,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:24,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:24,458 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:24,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:24,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1884733865, now seen corresponding path program 1 times [2022-11-03 03:32:24,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:24,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300330156] [2022-11-03 03:32:24,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:24,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:24,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:24,462 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:24,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 03:32:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:25,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:32:25,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 03:32:25,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:25,482 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:25,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300330156] [2022-11-03 03:32:25,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300330156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:25,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:25,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:32:25,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933359118] [2022-11-03 03:32:25,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:25,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:32:25,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:25,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:32:25,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:32:25,485 INFO L87 Difference]: Start difference. First operand 97 states and 130 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:25,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:25,542 INFO L93 Difference]: Finished difference Result 160 states and 216 transitions. [2022-11-03 03:32:25,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:32:25,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-11-03 03:32:25,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:25,543 INFO L225 Difference]: With dead ends: 160 [2022-11-03 03:32:25,544 INFO L226 Difference]: Without dead ends: 97 [2022-11-03 03:32:25,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:32:25,545 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 37 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:25,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 164 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:32:25,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-03 03:32:25,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-11-03 03:32:25,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.3296703296703296) internal successors, (121), 91 states have internal predecessors, (121), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:32:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 129 transitions. [2022-11-03 03:32:25,554 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 129 transitions. Word has length 86 [2022-11-03 03:32:25,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:25,555 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 129 transitions. [2022-11-03 03:32:25,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:25,555 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2022-11-03 03:32:25,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:25,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:25,556 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:25,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:25,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:25,780 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:25,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:25,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1957120423, now seen corresponding path program 1 times [2022-11-03 03:32:25,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:25,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588844070] [2022-11-03 03:32:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:25,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:25,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:25,783 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:25,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 03:32:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:26,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:32:26,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 03:32:26,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:26,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:26,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588844070] [2022-11-03 03:32:26,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588844070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:26,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:26,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:32:26,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970215776] [2022-11-03 03:32:26,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:26,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:32:26,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:26,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:32:26,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:32:26,769 INFO L87 Difference]: Start difference. First operand 97 states and 129 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:26,996 INFO L93 Difference]: Finished difference Result 160 states and 214 transitions. [2022-11-03 03:32:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:32:26,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-11-03 03:32:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:26,998 INFO L225 Difference]: With dead ends: 160 [2022-11-03 03:32:26,998 INFO L226 Difference]: Without dead ends: 97 [2022-11-03 03:32:26,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:32:27,000 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 32 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:27,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 162 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:32:27,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-03 03:32:27,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-11-03 03:32:27,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.3186813186813187) internal successors, (120), 91 states have internal predecessors, (120), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:32:27,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 128 transitions. [2022-11-03 03:32:27,008 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 128 transitions. Word has length 86 [2022-11-03 03:32:27,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:27,009 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 128 transitions. [2022-11-03 03:32:27,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:27,009 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 128 transitions. [2022-11-03 03:32:27,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:27,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:27,011 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:27,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:27,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:27,219 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:27,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:27,220 INFO L85 PathProgramCache]: Analyzing trace with hash -570917029, now seen corresponding path program 1 times [2022-11-03 03:32:27,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:27,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66623084] [2022-11-03 03:32:27,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:27,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:27,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:27,222 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:27,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 03:32:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:27,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:32:27,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 03:32:28,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:28,166 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:28,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66623084] [2022-11-03 03:32:28,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66623084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:28,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:28,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:32:28,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274597306] [2022-11-03 03:32:28,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:28,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:32:28,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:28,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:32:28,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:32:28,168 INFO L87 Difference]: Start difference. First operand 97 states and 128 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:28,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:28,560 INFO L93 Difference]: Finished difference Result 333 states and 443 transitions. [2022-11-03 03:32:28,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:32:28,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-11-03 03:32:28,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:28,562 INFO L225 Difference]: With dead ends: 333 [2022-11-03 03:32:28,562 INFO L226 Difference]: Without dead ends: 270 [2022-11-03 03:32:28,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:32:28,563 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 437 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:28,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 475 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:32:28,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-03 03:32:28,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 165. [2022-11-03 03:32:28,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 159 states have (on average 1.320754716981132) internal successors, (210), 159 states have internal predecessors, (210), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:32:28,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 218 transitions. [2022-11-03 03:32:28,573 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 218 transitions. Word has length 86 [2022-11-03 03:32:28,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:28,574 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 218 transitions. [2022-11-03 03:32:28,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:28,574 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 218 transitions. [2022-11-03 03:32:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:28,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:28,575 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:28,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:28,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:28,787 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:28,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:28,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1800822233, now seen corresponding path program 1 times [2022-11-03 03:32:28,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:28,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730222138] [2022-11-03 03:32:28,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:28,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:28,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:28,790 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:28,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 03:32:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:29,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 03:32:29,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 03:32:30,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:30,257 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:30,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730222138] [2022-11-03 03:32:30,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730222138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:30,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:32:30,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:32:30,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923064395] [2022-11-03 03:32:30,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:30,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:32:30,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:30,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:32:30,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:32:30,259 INFO L87 Difference]: Start difference. First operand 165 states and 218 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:30,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:30,422 INFO L93 Difference]: Finished difference Result 318 states and 424 transitions. [2022-11-03 03:32:30,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:32:30,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-11-03 03:32:30,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:30,430 INFO L225 Difference]: With dead ends: 318 [2022-11-03 03:32:30,430 INFO L226 Difference]: Without dead ends: 211 [2022-11-03 03:32:30,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:32:30,431 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 13 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:30,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 478 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 44 Unchecked, 0.1s Time] [2022-11-03 03:32:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-03 03:32:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-11-03 03:32:30,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 205 states have (on average 1.3219512195121952) internal successors, (271), 205 states have internal predecessors, (271), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:32:30,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 279 transitions. [2022-11-03 03:32:30,441 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 279 transitions. Word has length 86 [2022-11-03 03:32:30,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:30,442 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 279 transitions. [2022-11-03 03:32:30,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:30,442 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 279 transitions. [2022-11-03 03:32:30,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:30,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:30,444 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:30,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:30,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:30,658 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:30,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:30,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1941370843, now seen corresponding path program 1 times [2022-11-03 03:32:30,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:30,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333802279] [2022-11-03 03:32:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:30,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:30,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:30,660 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:30,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 03:32:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:31,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:32:31,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:31,664 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:31,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:31,955 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:31,956 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:31,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333802279] [2022-11-03 03:32:31,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333802279] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:32:31,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1753961493] [2022-11-03 03:32:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:31,956 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:31,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:32:31,963 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:32:31,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-03 03:32:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:33,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:32:33,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:33,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:33,676 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:33,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1753961493] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:32:33,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527654484] [2022-11-03 03:32:33,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:33,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:32:33,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:33,679 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:32:33,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 03:32:34,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:34,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:32:34,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:34,594 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:34,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:34,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527654484] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:32:34,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:32:34,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 11 [2022-11-03 03:32:34,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974955424] [2022-11-03 03:32:34,801 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:32:34,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 03:32:34,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:34,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 03:32:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:32:34,803 INFO L87 Difference]: Start difference. First operand 211 states and 279 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 03:32:35,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:35,899 INFO L93 Difference]: Finished difference Result 827 states and 1106 transitions. [2022-11-03 03:32:35,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 03:32:35,899 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 86 [2022-11-03 03:32:35,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:35,902 INFO L225 Difference]: With dead ends: 827 [2022-11-03 03:32:35,903 INFO L226 Difference]: Without dead ends: 720 [2022-11-03 03:32:35,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2022-11-03 03:32:35,904 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 618 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:35,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1195 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:32:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-11-03 03:32:35,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 272. [2022-11-03 03:32:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 264 states have (on average 1.3181818181818181) internal successors, (348), 264 states have internal predecessors, (348), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 03:32:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 360 transitions. [2022-11-03 03:32:35,924 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 360 transitions. Word has length 86 [2022-11-03 03:32:35,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:35,924 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 360 transitions. [2022-11-03 03:32:35,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 03:32:35,925 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 360 transitions. [2022-11-03 03:32:35,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-03 03:32:35,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:35,926 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-03 03:32:35,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:36,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-03 03:32:36,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:36,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:36,541 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:36,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:36,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1132024217, now seen corresponding path program 1 times [2022-11-03 03:32:36,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:36,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360094406] [2022-11-03 03:32:36,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:36,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:36,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:36,544 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:36,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 03:32:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:37,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:32:37,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:38,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:38,493 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:38,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360094406] [2022-11-03 03:32:38,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360094406] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:38,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [191763135] [2022-11-03 03:32:38,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:38,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:38,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:32:38,495 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:32:38,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-03 03:32:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:39,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 03:32:39,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:40,670 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:40,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:41,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [191763135] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:41,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532147815] [2022-11-03 03:32:41,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:41,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:32:41,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:41,018 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:32:41,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 03:32:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:41,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:32:41,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:42,307 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 03:32:42,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:42,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532147815] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:42,625 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:32:42,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 7] total 9 [2022-11-03 03:32:42,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464874692] [2022-11-03 03:32:42,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:32:42,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 03:32:42,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:42,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 03:32:42,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:32:42,627 INFO L87 Difference]: Start difference. First operand 272 states and 360 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 03:32:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:43,052 INFO L93 Difference]: Finished difference Result 676 states and 914 transitions. [2022-11-03 03:32:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:32:43,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 86 [2022-11-03 03:32:43,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:43,056 INFO L225 Difference]: With dead ends: 676 [2022-11-03 03:32:43,056 INFO L226 Difference]: Without dead ends: 526 [2022-11-03 03:32:43,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-03 03:32:43,057 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 294 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:43,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 531 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 44 Unchecked, 0.2s Time] [2022-11-03 03:32:43,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-11-03 03:32:43,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 394. [2022-11-03 03:32:43,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 382 states have (on average 1.324607329842932) internal successors, (506), 382 states have internal predecessors, (506), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-03 03:32:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 526 transitions. [2022-11-03 03:32:43,087 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 526 transitions. Word has length 86 [2022-11-03 03:32:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:43,087 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 526 transitions. [2022-11-03 03:32:43,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 03:32:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 526 transitions. [2022-11-03 03:32:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:32:43,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:43,090 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:32:43,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:43,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:43,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:43,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:43,712 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:43,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:43,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1775947229, now seen corresponding path program 1 times [2022-11-03 03:32:43,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:43,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126206308] [2022-11-03 03:32:43,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:43,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:43,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:43,714 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:43,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 03:32:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:44,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:32:44,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:45,207 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 97 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:32:45,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:45,678 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:45,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126206308] [2022-11-03 03:32:45,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126206308] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:45,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [991758914] [2022-11-03 03:32:45,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:45,679 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:45,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:32:45,683 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:32:45,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-03 03:32:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:46,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:32:46,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-03 03:32:46,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:46,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [991758914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:46,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:32:46,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-03 03:32:46,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454457753] [2022-11-03 03:32:46,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:46,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:32:46,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:32:46,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:32:46,642 INFO L87 Difference]: Start difference. First operand 394 states and 526 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:47,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:47,040 INFO L93 Difference]: Finished difference Result 1092 states and 1465 transitions. [2022-11-03 03:32:47,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:32:47,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2022-11-03 03:32:47,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:47,046 INFO L225 Difference]: With dead ends: 1092 [2022-11-03 03:32:47,046 INFO L226 Difference]: Without dead ends: 942 [2022-11-03 03:32:47,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-11-03 03:32:47,048 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 285 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:47,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 358 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:32:47,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-11-03 03:32:47,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 398. [2022-11-03 03:32:47,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 386 states have (on average 1.3212435233160622) internal successors, (510), 386 states have internal predecessors, (510), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-03 03:32:47,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 530 transitions. [2022-11-03 03:32:47,082 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 530 transitions. Word has length 149 [2022-11-03 03:32:47,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:47,082 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 530 transitions. [2022-11-03 03:32:47,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:47,083 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 530 transitions. [2022-11-03 03:32:47,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:32:47,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:47,087 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:32:47,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:47,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:47,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:47,503 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:47,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:47,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1215247451, now seen corresponding path program 1 times [2022-11-03 03:32:47,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:47,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959537949] [2022-11-03 03:32:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:47,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:47,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:47,506 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:47,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 03:32:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:48,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:32:48,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:49,047 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 97 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:32:49,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:49,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:49,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959537949] [2022-11-03 03:32:49,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959537949] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:49,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [507768345] [2022-11-03 03:32:49,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:49,520 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:49,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:32:49,523 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:32:49,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-03 03:32:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:50,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:32:50,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-03 03:32:50,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:50,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [507768345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:50,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:32:50,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-03 03:32:50,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498313727] [2022-11-03 03:32:50,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:50,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:32:50,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:50,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:32:50,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:32:50,584 INFO L87 Difference]: Start difference. First operand 398 states and 530 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:50,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:50,859 INFO L93 Difference]: Finished difference Result 1434 states and 1912 transitions. [2022-11-03 03:32:50,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:32:50,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2022-11-03 03:32:50,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:50,866 INFO L225 Difference]: With dead ends: 1434 [2022-11-03 03:32:50,866 INFO L226 Difference]: Without dead ends: 1122 [2022-11-03 03:32:50,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-11-03 03:32:50,868 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 226 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:50,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 491 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:32:50,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-11-03 03:32:50,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 532. [2022-11-03 03:32:50,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 520 states have (on average 1.301923076923077) internal successors, (677), 520 states have internal predecessors, (677), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-03 03:32:50,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 697 transitions. [2022-11-03 03:32:50,902 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 697 transitions. Word has length 149 [2022-11-03 03:32:50,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:50,903 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 697 transitions. [2022-11-03 03:32:50,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:50,903 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 697 transitions. [2022-11-03 03:32:50,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:32:50,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:50,906 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:32:50,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:51,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-11-03 03:32:51,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:51,312 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:51,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:51,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1199728733, now seen corresponding path program 1 times [2022-11-03 03:32:51,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:51,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980722249] [2022-11-03 03:32:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:51,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:51,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:51,315 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:51,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 03:32:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:52,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:32:52,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:52,723 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 97 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:32:52,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:53,180 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:53,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980722249] [2022-11-03 03:32:53,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980722249] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:53,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [795046503] [2022-11-03 03:32:53,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:53,181 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:53,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:32:53,184 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:32:53,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-11-03 03:32:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:54,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:32:54,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-03 03:32:54,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:32:54,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [795046503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:32:54,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:32:54,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-03 03:32:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737236875] [2022-11-03 03:32:54,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:32:54,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:32:54,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:32:54,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:32:54,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:32:54,117 INFO L87 Difference]: Start difference. First operand 532 states and 697 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:54,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:54,956 INFO L93 Difference]: Finished difference Result 1366 states and 1803 transitions. [2022-11-03 03:32:54,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:32:54,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2022-11-03 03:32:54,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:54,973 INFO L225 Difference]: With dead ends: 1366 [2022-11-03 03:32:54,974 INFO L226 Difference]: Without dead ends: 1162 [2022-11-03 03:32:54,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-11-03 03:32:54,975 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 270 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:54,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 365 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:32:54,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-11-03 03:32:55,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 580. [2022-11-03 03:32:55,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 568 states have (on average 1.2975352112676057) internal successors, (737), 568 states have internal predecessors, (737), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-03 03:32:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 757 transitions. [2022-11-03 03:32:55,012 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 757 transitions. Word has length 149 [2022-11-03 03:32:55,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:55,013 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 757 transitions. [2022-11-03 03:32:55,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:32:55,013 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 757 transitions. [2022-11-03 03:32:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:32:55,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:55,016 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:32:55,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:55,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:55,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:32:55,422 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:55,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:55,423 INFO L85 PathProgramCache]: Analyzing trace with hash 306242395, now seen corresponding path program 1 times [2022-11-03 03:32:55,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:32:55,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860373498] [2022-11-03 03:32:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:55,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:32:55,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:32:55,425 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:32:55,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 03:32:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:56,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:32:56,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:56,818 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 97 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:32:56,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:57,243 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:32:57,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860373498] [2022-11-03 03:32:57,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860373498] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:32:57,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1385286130] [2022-11-03 03:32:57,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:57,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:32:57,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:32:57,245 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:32:57,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-11-03 03:32:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:59,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:32:59,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 89 proven. 22 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:32:59,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:33:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 57 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 03:33:00,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1385286130] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:33:00,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965282401] [2022-11-03 03:33:00,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:00,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:33:00,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:33:00,251 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:33:00,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-03 03:33:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:01,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:33:01,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 89 proven. 22 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:33:01,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:33:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 57 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 03:33:01,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965282401] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:33:01,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2022-11-03 03:33:01,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8] total 20 [2022-11-03 03:33:01,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340995200] [2022-11-03 03:33:01,793 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2022-11-03 03:33:01,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 03:33:01,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:33:01,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 03:33:01,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-11-03 03:33:01,803 INFO L87 Difference]: Start difference. First operand 580 states and 757 transitions. Second operand has 20 states, 20 states have (on average 13.65) internal successors, (273), 20 states have internal predecessors, (273), 7 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2022-11-03 03:33:08,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:08,419 INFO L93 Difference]: Finished difference Result 4076 states and 5297 transitions. [2022-11-03 03:33:08,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-03 03:33:08,420 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 13.65) internal successors, (273), 20 states have internal predecessors, (273), 7 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 149 [2022-11-03 03:33:08,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:08,432 INFO L225 Difference]: With dead ends: 4076 [2022-11-03 03:33:08,432 INFO L226 Difference]: Without dead ends: 3824 [2022-11-03 03:33:08,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 853 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1475 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1552, Invalid=5588, Unknown=0, NotChecked=0, Total=7140 [2022-11-03 03:33:08,436 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1977 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:08,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1977 Valid, 2610 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 03:33:08,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2022-11-03 03:33:08,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 1254. [2022-11-03 03:33:08,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1218 states have (on average 1.2742200328407225) internal successors, (1552), 1218 states have internal predecessors, (1552), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-03 03:33:08,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1620 transitions. [2022-11-03 03:33:08,574 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1620 transitions. Word has length 149 [2022-11-03 03:33:08,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:08,575 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 1620 transitions. [2022-11-03 03:33:08,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.65) internal successors, (273), 20 states have internal predecessors, (273), 7 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2022-11-03 03:33:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1620 transitions. [2022-11-03 03:33:08,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:33:08,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:08,580 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:33:08,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2022-11-03 03:33:08,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2022-11-03 03:33:09,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-03 03:33:09,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:33:09,196 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:33:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:09,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1275631199, now seen corresponding path program 1 times [2022-11-03 03:33:09,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:33:09,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815662960] [2022-11-03 03:33:09,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:09,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:33:09,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:33:09,199 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:33:09,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 03:33:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:10,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:33:10,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 75 proven. 36 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:33:10,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:33:11,142 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:33:11,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815662960] [2022-11-03 03:33:11,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815662960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:33:11,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1946318714] [2022-11-03 03:33:11,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:11,142 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:33:11,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:33:11,144 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:33:11,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2022-11-03 03:33:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:11,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:33:11,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-03 03:33:12,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:33:12,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1946318714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:12,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:33:12,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2022-11-03 03:33:12,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744181117] [2022-11-03 03:33:12,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:12,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:33:12,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:33:12,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:33:12,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:33:12,017 INFO L87 Difference]: Start difference. First operand 1254 states and 1620 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:33:12,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:12,332 INFO L93 Difference]: Finished difference Result 4692 states and 6039 transitions. [2022-11-03 03:33:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:33:12,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2022-11-03 03:33:12,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:12,342 INFO L225 Difference]: With dead ends: 4692 [2022-11-03 03:33:12,342 INFO L226 Difference]: Without dead ends: 3662 [2022-11-03 03:33:12,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-11-03 03:33:12,345 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 258 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:12,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 525 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:33:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2022-11-03 03:33:12,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 1642. [2022-11-03 03:33:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1606 states have (on average 1.2671232876712328) internal successors, (2035), 1606 states have internal predecessors, (2035), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-03 03:33:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2103 transitions. [2022-11-03 03:33:12,478 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2103 transitions. Word has length 149 [2022-11-03 03:33:12,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:12,478 INFO L495 AbstractCegarLoop]: Abstraction has 1642 states and 2103 transitions. [2022-11-03 03:33:12,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:33:12,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2103 transitions. [2022-11-03 03:33:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:33:12,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:12,483 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:33:12,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2022-11-03 03:33:12,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-03 03:33:12,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:33:12,889 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:33:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:12,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1699277921, now seen corresponding path program 1 times [2022-11-03 03:33:12,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:33:12,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565337247] [2022-11-03 03:33:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:12,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:33:12,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:33:12,892 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:33:12,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-03 03:33:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:13,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:33:13,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 71 proven. 40 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:33:14,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:33:14,743 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:33:14,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565337247] [2022-11-03 03:33:14,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565337247] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:33:14,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2102091166] [2022-11-03 03:33:14,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:14,744 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:33:14,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:33:14,745 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:33:14,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2022-11-03 03:33:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:15,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:33:15,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-03 03:33:15,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:33:15,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2102091166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:33:15,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:33:15,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2022-11-03 03:33:15,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920712698] [2022-11-03 03:33:15,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:33:15,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:33:15,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:33:15,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:33:15,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:33:15,628 INFO L87 Difference]: Start difference. First operand 1642 states and 2103 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:33:15,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:15,957 INFO L93 Difference]: Finished difference Result 4828 states and 6161 transitions. [2022-11-03 03:33:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:33:15,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2022-11-03 03:33:15,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:15,968 INFO L225 Difference]: With dead ends: 4828 [2022-11-03 03:33:15,968 INFO L226 Difference]: Without dead ends: 3646 [2022-11-03 03:33:15,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-11-03 03:33:15,985 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 244 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:15,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 524 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:33:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2022-11-03 03:33:16,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 1722. [2022-11-03 03:33:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1686 states have (on average 1.2663107947805456) internal successors, (2135), 1686 states have internal predecessors, (2135), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-03 03:33:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2203 transitions. [2022-11-03 03:33:16,103 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2203 transitions. Word has length 149 [2022-11-03 03:33:16,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:16,104 INFO L495 AbstractCegarLoop]: Abstraction has 1722 states and 2203 transitions. [2022-11-03 03:33:16,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 03:33:16,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2203 transitions. [2022-11-03 03:33:16,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:33:16,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:16,109 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:33:16,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-03 03:33:16,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2022-11-03 03:33:16,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:33:16,531 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:33:16,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:16,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1936157853, now seen corresponding path program 1 times [2022-11-03 03:33:16,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:33:16,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949507632] [2022-11-03 03:33:16,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:16,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:33:16,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:33:16,535 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:33:16,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 03:33:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:17,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:33:17,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:18,107 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 65 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:33:18,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:33:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 33 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 03:33:18,540 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:33:18,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949507632] [2022-11-03 03:33:18,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949507632] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:33:18,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1874988643] [2022-11-03 03:33:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:18,540 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:33:18,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:33:18,542 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:33:18,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2022-11-03 03:33:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:20,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:33:20,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 65 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:33:20,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:33:21,220 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 33 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 03:33:21,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1874988643] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:33:21,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112708503] [2022-11-03 03:33:21,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:21,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:33:21,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:33:21,222 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:33:21,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-11-03 03:33:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:22,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:33:22,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 65 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:33:22,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:33:22,869 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 33 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 03:33:22,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112708503] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:33:22,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:33:22,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 12 [2022-11-03 03:33:22,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019294329] [2022-11-03 03:33:22,870 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:33:22,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 03:33:22,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:33:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 03:33:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:33:22,871 INFO L87 Difference]: Start difference. First operand 1722 states and 2203 transitions. Second operand has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 03:33:24,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:24,208 INFO L93 Difference]: Finished difference Result 3562 states and 4548 transitions. [2022-11-03 03:33:24,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:33:24,209 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 149 [2022-11-03 03:33:24,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:24,216 INFO L225 Difference]: With dead ends: 3562 [2022-11-03 03:33:24,217 INFO L226 Difference]: Without dead ends: 2716 [2022-11-03 03:33:24,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 895 GetRequests, 878 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2022-11-03 03:33:24,219 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 251 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:24,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 946 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 03:33:24,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2022-11-03 03:33:24,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2570. [2022-11-03 03:33:24,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 2502 states have (on average 1.2577937649880095) internal successors, (3147), 2502 states have internal predecessors, (3147), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-11-03 03:33:24,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 3279 transitions. [2022-11-03 03:33:24,412 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 3279 transitions. Word has length 149 [2022-11-03 03:33:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:24,414 INFO L495 AbstractCegarLoop]: Abstraction has 2570 states and 3279 transitions. [2022-11-03 03:33:24,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 03:33:24,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 3279 transitions. [2022-11-03 03:33:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-03 03:33:24,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:24,421 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:33:24,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-11-03 03:33:24,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-03 03:33:24,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2022-11-03 03:33:25,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:33:25,044 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:33:25,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:25,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1234557979, now seen corresponding path program 1 times [2022-11-03 03:33:25,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:33:25,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329485287] [2022-11-03 03:33:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:25,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:33:25,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:33:25,046 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:33:25,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 03:33:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:26,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 03:33:26,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 59 proven. 45 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 03:33:27,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:33:27,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:33:27,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329485287] [2022-11-03 03:33:27,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329485287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:33:27,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [100367431] [2022-11-03 03:33:27,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:27,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:33:27,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:33:27,750 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:33:27,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2022-11-03 03:33:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:33:29,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 185 conjunts are in the unsatisfiable core [2022-11-03 03:33:29,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:34:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 59 proven. 52 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:34:55,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:35:09,457 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~var_62_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_64_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_68_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_66_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_92_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_93_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_91_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_90_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_18_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_50_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_69_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_16_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_52_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_76_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_20_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_38_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_74_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_101_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_78_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_24_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_26_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_28_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_95_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_82_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_22_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_80_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_99_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_97_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_60_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_46_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_48_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_83_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_30_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_87_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_32_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_85_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_84_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_86_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_36_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_34_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_70_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_88_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_89_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_58_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_56_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_54_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_75_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_100_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_79_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_77_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_81_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_94_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_40_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_42_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_96_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_44_arg_0~0#1_59| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_98_arg_0~0#1_59| (_ BitVec 8))) (let ((.cse3 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_31~0#1|)) (.cse9 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_27~0#1|)) (.cse4 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_25~0#1|)) (.cse6 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_19~0#1|)) (.cse5 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_17~0#1|)) (.cse7 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_21~0#1|)) (.cse8 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_23~0#1|)) (.cse10 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_29~0#1|)) (.cse11 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_33~0#1|)) (.cse12 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_35~0#1|)) (.cse2 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_37~0#1|)) (.cse13 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_39~0#1|))) (let ((.cse0 (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_70_arg_0~0#1_59|) (_ bv31 32)) (bvand (bvor (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_68_arg_0~0#1_59|) (_ bv29 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_65~0#1| (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_66_arg_0~0#1_59|) (_ bv28 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_63~0#1| (bvor (bvand (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_59~0#1| (bvor (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_58_arg_0~0#1_59|) (_ bv24 32)) (bvand (bvor (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_54_arg_0~0#1_59|) (_ bv22 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_51~0#1| (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_49~0#1| (bvor (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_48_arg_0~0#1_59|) (_ bv19 32)) (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_46_arg_0~0#1_59|) (_ bv18 32)) (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_44_arg_0~0#1_59|) (_ bv17 32)) (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_42_arg_0~0#1_59|) (_ bv16 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse3 ((_ zero_extend 16) ((_ extract 15 0) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_32_arg_0~0#1_59|)) (_ bv11 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse9 ((_ zero_extend 16) ((_ extract 15 0) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_28_arg_0~0#1_59|)) (_ bv9 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse4 ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_20_arg_0~0#1_59|) (_ bv5 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_15~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_16_arg_0~0#1_59|) (_ bv3 32)) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_13~0#1|))))))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_18_arg_0~0#1_59|) (_ bv4 32))))) .cse5))))))))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_22_arg_0~0#1_59|) (_ bv6 32))))) .cse7))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_24_arg_0~0#1_59|) (_ bv7 32))))) .cse8))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_26_arg_0~0#1_59|)) (_ bv8 32)))))))))))))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_30_arg_0~0#1_59|)) (_ bv10 32))))) .cse10))))))))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_34_arg_0~0#1_59|)) (_ bv12 32))))) .cse11))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_36_arg_0~0#1_59|)) (_ bv13 32))))) .cse12))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_38_arg_0~0#1_59|)) (_ bv14 32))))) .cse2))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_40_arg_0~0#1_59|)) (_ bv15 32))))) .cse13)))) |c_ULTIMATE.start_main_~mask_SORT_41~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_43~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_45~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_47~0#1|) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_50_arg_0~0#1_59|) (_ bv20 32)))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_52_arg_0~0#1_59|) (_ bv21 32))))) |c_ULTIMATE.start_main_~mask_SORT_53~0#1|) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_56_arg_0~0#1_59|) (_ bv23 32))) |c_ULTIMATE.start_main_~mask_SORT_55~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_57~0#1|) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_60_arg_0~0#1_59|) (_ bv25 32)))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_62_arg_0~0#1_59|) (_ bv26 32))) |c_ULTIMATE.start_main_~mask_SORT_61~0#1|) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_64_arg_0~0#1_59|) (_ bv27 32))))))) |c_ULTIMATE.start_main_~mask_SORT_67~0#1|) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_69_arg_0~0#1_59|) (_ bv30 32))) |c_ULTIMATE.start_main_~mask_SORT_9~0#1|))) (.cse1 (bvor (bvand (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_67~0#1| (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_65~0#1| (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_63~0#1| (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_97_arg_0~0#1_59|) (_ bv27 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_61~0#1| (bvor (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_95_arg_0~0#1_59|) (_ bv25 32)) (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_94_arg_0~0#1_59|) (_ bv24 32)) (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_93_arg_0~0#1_59|) (_ bv23 32)) (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_92_arg_0~0#1_59|) (_ bv22 32)) (bvand |c_ULTIMATE.start_main_~mask_SORT_51~0#1| (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_49~0#1| (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_90_arg_0~0#1_59|) (_ bv20 32)) (bvand (bvor (bvand (bvor (bvand |c_ULTIMATE.start_main_~mask_SORT_43~0#1| (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_87_arg_0~0#1_59|) (_ bv17 32)) (bvand (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_86_arg_0~0#1_59|) (_ bv16 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_85_arg_0~0#1_59|)) (_ bv15 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse2 ((_ zero_extend 16) ((_ extract 15 0) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_84_arg_0~0#1_59|)) (_ bv14 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_83_arg_0~0#1_59|)) (_ bv13 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse3 ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 16) ((_ extract 15 0) (bvand ((_ zero_extend 16) ((_ extract 15 0) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_79_arg_0~0#1_59|)) (_ bv9 32)) ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse4 ((_ zero_extend 16) ((_ extract 15 0) (bvor (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_78_arg_0~0#1_59|)) (_ bv8 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_77_arg_0~0#1_59|) (_ bv7 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_76_arg_0~0#1_59|) (_ bv6 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_74_arg_0~0#1_59|) (_ bv4 32)) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_71~0#1|)))) .cse5))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_75_arg_0~0#1_59|) (_ bv5 32))))) .cse6)))))) .cse7)))))) .cse8)))))))))))) .cse9))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_80_arg_0~0#1_59|)) (_ bv10 32))))) .cse10))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_81_arg_0~0#1_59|)) (_ bv11 32)))))))) (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |v_ULTIMATE.start_main_~var_82_arg_0~0#1_59|)) (_ bv12 32))))) .cse11)))))) .cse12)))))))))))) .cse13)))) |c_ULTIMATE.start_main_~mask_SORT_41~0#1|))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_88_arg_0~0#1_59|) (_ bv18 32))) |c_ULTIMATE.start_main_~mask_SORT_45~0#1|) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_89_arg_0~0#1_59|) (_ bv19 32))) |c_ULTIMATE.start_main_~mask_SORT_47~0#1|))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_91_arg_0~0#1_59|) (_ bv21 32))))) |c_ULTIMATE.start_main_~mask_SORT_53~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_55~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_57~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_59~0#1|) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_96_arg_0~0#1_59|) (_ bv26 32)))))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_98_arg_0~0#1_59|) (_ bv28 32)))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_99_arg_0~0#1_59|) (_ bv29 32)))) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_100_arg_0~0#1_59|) (_ bv30 32))) |c_ULTIMATE.start_main_~mask_SORT_9~0#1|) (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_101_arg_0~0#1_59|) (_ bv31 32))))) (or (= (bvand (bvneg (bvadd (bvneg |c_ULTIMATE.start_main_~state_147~0#1|) .cse0 .cse1)) |c_ULTIMATE.start_main_~msb_SORT_11~0#1|) (_ bv0 32)) (= (bvand |c_ULTIMATE.start_main_~msb_SORT_11~0#1| (bvadd .cse0 |c_ULTIMATE.start_main_~state_103~0#1| .cse1)) (_ bv0 32)))))) is different from false [2022-11-03 03:35:09,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [100367431] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:35:09,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320965598] [2022-11-03 03:35:09,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:09,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:35:09,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:35:09,727 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:35:09,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-11-03 03:35:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:10,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 03:35:10,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:35:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 59 proven. 45 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 03:35:12,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:35:14,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320965598] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:35:14,650 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:35:14,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 21, 8] total 27 [2022-11-03 03:35:14,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727679650] [2022-11-03 03:35:14,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:35:14,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-03 03:35:14,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:35:14,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-03 03:35:14,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1499, Unknown=18, NotChecked=78, Total=1722 [2022-11-03 03:35:14,652 INFO L87 Difference]: Start difference. First operand 2570 states and 3279 transitions. Second operand has 27 states, 27 states have (on average 8.37037037037037) internal successors, (226), 27 states have internal predecessors, (226), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-03 03:35:40,236 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-03 03:35:40,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:35:40,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 622 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 98.7s TimeCoverageRelationStatistics Valid=340, Invalid=2952, Unknown=18, NotChecked=112, Total=3422 [2022-11-03 03:35:40,238 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 218 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 772 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:40,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 2064 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 202 Invalid, 0 Unknown, 772 Unchecked, 1.6s Time] [2022-11-03 03:35:40,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-11-03 03:35:40,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-03 03:35:40,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-11-03 03:35:40,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2022-11-03 03:35:40,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:35:40,839 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:86) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:894) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 49 more [2022-11-03 03:35:40,843 INFO L158 Benchmark]: Toolchain (without parser) took 207117.99ms. Allocated memory was 54.5MB in the beginning and 589.3MB in the end (delta: 534.8MB). Free memory was 29.1MB in the beginning and 388.9MB in the end (delta: -359.8MB). Peak memory consumption was 395.5MB. Max. memory is 16.1GB. [2022-11-03 03:35:40,844 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:35:40,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 850.13ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 28.9MB in the beginning and 44.1MB in the end (delta: -15.2MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2022-11-03 03:35:40,844 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.71ms. Allocated memory is still 73.4MB. Free memory was 44.1MB in the beginning and 38.2MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 03:35:40,844 INFO L158 Benchmark]: Boogie Preprocessor took 73.84ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 48.4MB in the end (delta: -10.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-11-03 03:35:40,845 INFO L158 Benchmark]: RCFGBuilder took 1524.16ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.4MB in the beginning and 62.1MB in the end (delta: -13.7MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-03 03:35:40,845 INFO L158 Benchmark]: TraceAbstraction took 204577.49ms. Allocated memory was 92.3MB in the beginning and 589.3MB in the end (delta: 497.0MB). Free memory was 61.6MB in the beginning and 388.9MB in the end (delta: -327.3MB). Peak memory consumption was 390.0MB. Max. memory is 16.1GB. [2022-11-03 03:35:40,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 850.13ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 28.9MB in the beginning and 44.1MB in the end (delta: -15.2MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.71ms. Allocated memory is still 73.4MB. Free memory was 44.1MB in the beginning and 38.2MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.84ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 48.4MB in the end (delta: -10.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1524.16ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.4MB in the beginning and 62.1MB in the end (delta: -13.7MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 204577.49ms. Allocated memory was 92.3MB in the beginning and 589.3MB in the end (delta: 497.0MB). Free memory was 61.6MB in the beginning and 388.9MB in the end (delta: -327.3MB). Peak memory consumption was 390.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10b5009-50fa-4888-bd5d-71ec85b327e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")