./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS --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 32bit --witnessprinter.graph.data.programhash 791fd4c1f54f973c646b3f11f7eb2f654eca269cacf7e504443ee0d13fbe9694 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:10:27,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:10:27,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:10:27,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:10:27,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:10:27,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:10:27,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:10:27,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:10:27,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:10:27,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:10:27,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:10:27,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:10:27,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:10:27,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:10:27,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:10:27,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:10:27,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:10:27,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:10:27,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:10:27,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:10:27,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:10:27,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:10:27,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:10:27,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:10:27,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:10:27,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:10:27,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:10:27,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:10:27,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:10:27,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:10:27,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:10:27,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:10:27,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:10:27,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:10:27,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:10:27,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:10:27,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:10:27,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:10:27,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:10:27,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:10:27,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:10:27,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:10:27,650 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:10:27,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:10:27,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:10:27,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:10:27,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:10:27,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:10:27,665 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:10:27,665 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:10:27,665 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:10:27,666 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:10:27,667 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:10:27,667 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:10:27,667 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:10:27,668 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:10:27,668 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:10:27,668 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:10:27,668 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:10:27,669 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:10:27,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:10:27,670 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:10:27,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:10:27,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:10:27,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:10:27,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:10:27,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:10:27,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:10:27,672 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:10:27,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:10:27,672 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:10:27,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:10:27,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:10:27,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:10:27,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:10:27,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:10:27,674 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:10:27,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:10:27,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:10:27,675 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:10:27,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:10:27,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:10:27,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:10:27,676 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_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 791fd4c1f54f973c646b3f11f7eb2f654eca269cacf7e504443ee0d13fbe9694 [2022-11-19 07:10:28,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:10:28,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:10:28,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:10:28,058 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:10:28,059 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:10:28,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c [2022-11-19 07:10:28,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data/d1ec74b1d/09a73c6fc5624d808356123ec91d7d45/FLAG1c3a04cec [2022-11-19 07:10:28,871 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:10:28,872 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c [2022-11-19 07:10:28,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data/d1ec74b1d/09a73c6fc5624d808356123ec91d7d45/FLAG1c3a04cec [2022-11-19 07:10:28,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data/d1ec74b1d/09a73c6fc5624d808356123ec91d7d45 [2022-11-19 07:10:29,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:10:29,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:10:29,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:10:29,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:10:29,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:10:29,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:10:29" (1/1) ... [2022-11-19 07:10:29,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729b0706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:29, skipping insertion in model container [2022-11-19 07:10:29,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:10:29" (1/1) ... [2022-11-19 07:10:29,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:10:29,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:10:29,804 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c[62209,62222] [2022-11-19 07:10:30,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:10:30,034 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:10:30,081 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c[62209,62222] [2022-11-19 07:10:30,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:10:30,296 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:10:30,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30 WrapperNode [2022-11-19 07:10:30,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:10:30,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:10:30,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:10:30,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:10:30,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,449 INFO L138 Inliner]: procedures = 109, calls = 328, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1084 [2022-11-19 07:10:30,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:10:30,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:10:30,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:10:30,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:10:30,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:10:30,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:10:30,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:10:30,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:10:30,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (1/1) ... [2022-11-19 07:10:30,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:10:30,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:10:30,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:10:30,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:10:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2022-11-19 07:10:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2022-11-19 07:10:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:10:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:10:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:10:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:10:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-11-19 07:10:30,669 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-11-19 07:10:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:10:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-11-19 07:10:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-11-19 07:10:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-11-19 07:10:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-11-19 07:10:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:10:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:10:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:10:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:10:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-11-19 07:10:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-11-19 07:10:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2022-11-19 07:10:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2022-11-19 07:10:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:10:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:10:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:10:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:10:30,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:10:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:10:30,674 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2022-11-19 07:10:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2022-11-19 07:10:31,101 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:10:31,103 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:10:31,204 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:10:31,238 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-11-19 07:10:31,238 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-11-19 07:10:31,307 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:10:31,309 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:10:31,311 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:10:31,316 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:10:31,319 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:10:31,323 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:10:31,325 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:10:34,227 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume false; [2022-11-19 07:10:34,228 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume !false; [2022-11-19 07:10:34,228 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2022-11-19 07:10:34,228 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2022-11-19 07:10:34,228 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2022-11-19 07:10:34,229 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2022-11-19 07:10:34,229 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2022-11-19 07:10:34,230 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2022-11-19 07:10:34,231 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-11-19 07:10:34,231 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume !false; [2022-11-19 07:10:34,231 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-11-19 07:10:34,231 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##156: assume false; [2022-11-19 07:10:34,232 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !false; [2022-11-19 07:10:34,232 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##113: assume false; [2022-11-19 07:10:34,265 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:10:34,913 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:10:34,913 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:10:34,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:10:34 BoogieIcfgContainer [2022-11-19 07:10:34,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:10:34,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:10:34,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:10:34,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:10:34,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:10:29" (1/3) ... [2022-11-19 07:10:34,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c4a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:10:34, skipping insertion in model container [2022-11-19 07:10:34,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:10:30" (2/3) ... [2022-11-19 07:10:34,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488c4a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:10:34, skipping insertion in model container [2022-11-19 07:10:34,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:10:34" (3/3) ... [2022-11-19 07:10:34,927 INFO L112 eAbstractionObserver]: Analyzing ICFG kbfiltr.i.cil-2.c [2022-11-19 07:10:34,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:10:34,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:10:35,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:10:35,038 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;@5689927c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:10:35,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:10:35,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 108 states have (on average 1.6203703703703705) internal successors, (175), 126 states have internal predecessors, (175), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-19 07:10:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:10:35,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:10:35,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:10:35,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:10:35,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:10:35,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1730859452, now seen corresponding path program 1 times [2022-11-19 07:10:35,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:10:35,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36999692] [2022-11-19 07:10:35,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:10:35,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:10:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:10:35,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:10:35,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:10:35,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36999692] [2022-11-19 07:10:35,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36999692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:10:35,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:10:35,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:10:35,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784485262] [2022-11-19 07:10:35,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:10:35,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:10:35,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:10:35,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:10:35,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:10:35,823 INFO L87 Difference]: Start difference. First operand has 146 states, 108 states have (on average 1.6203703703703705) internal successors, (175), 126 states have internal predecessors, (175), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:37,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:10:38,954 INFO L93 Difference]: Finished difference Result 249 states and 394 transitions. [2022-11-19 07:10:38,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:10:38,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 07:10:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:10:38,968 INFO L225 Difference]: With dead ends: 249 [2022-11-19 07:10:38,969 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 07:10:38,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:10:38,977 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 97 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:10:38,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 262 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 07:10:38,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 07:10:39,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 07:10:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 106 states have (on average 1.5) internal successors, (159), 122 states have internal predecessors, (159), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:10:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 203 transitions. [2022-11-19 07:10:39,038 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 203 transitions. Word has length 11 [2022-11-19 07:10:39,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:10:39,039 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 203 transitions. [2022-11-19 07:10:39,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:39,040 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 203 transitions. [2022-11-19 07:10:39,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 07:10:39,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:10:39,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:10:39,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:10:39,042 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:10:39,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:10:39,043 INFO L85 PathProgramCache]: Analyzing trace with hash 565032555, now seen corresponding path program 1 times [2022-11-19 07:10:39,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:10:39,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490723683] [2022-11-19 07:10:39,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:10:39,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:10:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:10:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:10:39,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:10:39,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490723683] [2022-11-19 07:10:39,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490723683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:10:39,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:10:39,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:10:39,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634960765] [2022-11-19 07:10:39,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:10:39,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:10:39,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:10:39,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:10:39,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:10:39,609 INFO L87 Difference]: Start difference. First operand 142 states and 203 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:41,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:44,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:10:44,289 INFO L93 Difference]: Finished difference Result 280 states and 400 transitions. [2022-11-19 07:10:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:10:44,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 07:10:44,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:10:44,292 INFO L225 Difference]: With dead ends: 280 [2022-11-19 07:10:44,292 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 07:10:44,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:10:44,294 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:10:44,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 508 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 07:10:44,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 07:10:44,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 07:10:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 106 states have (on average 1.490566037735849) internal successors, (158), 122 states have internal predecessors, (158), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:10:44,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 202 transitions. [2022-11-19 07:10:44,319 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 202 transitions. Word has length 13 [2022-11-19 07:10:44,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:10:44,319 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 202 transitions. [2022-11-19 07:10:44,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 202 transitions. [2022-11-19 07:10:44,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:10:44,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:10:44,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:10:44,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:10:44,322 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:10:44,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:10:44,332 INFO L85 PathProgramCache]: Analyzing trace with hash 46535799, now seen corresponding path program 1 times [2022-11-19 07:10:44,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:10:44,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829977594] [2022-11-19 07:10:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:10:44,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:10:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:10:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:10:44,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:10:44,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829977594] [2022-11-19 07:10:44,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829977594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:10:44,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:10:44,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:10:44,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176115621] [2022-11-19 07:10:44,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:10:44,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:10:44,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:10:44,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:10:44,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:10:44,622 INFO L87 Difference]: Start difference. First operand 142 states and 202 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:46,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:47,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:10:47,847 INFO L93 Difference]: Finished difference Result 216 states and 299 transitions. [2022-11-19 07:10:47,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:10:47,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-19 07:10:47,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:10:47,850 INFO L225 Difference]: With dead ends: 216 [2022-11-19 07:10:47,850 INFO L226 Difference]: Without dead ends: 169 [2022-11-19 07:10:47,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:10:47,852 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 97 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:10:47,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 219 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 105 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-19 07:10:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-19 07:10:47,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 154. [2022-11-19 07:10:47,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 120 states have (on average 1.4) internal successors, (168), 129 states have internal predecessors, (168), 26 states have call successors, (26), 11 states have call predecessors, (26), 7 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-19 07:10:47,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 212 transitions. [2022-11-19 07:10:47,875 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 212 transitions. Word has length 14 [2022-11-19 07:10:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:10:47,876 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 212 transitions. [2022-11-19 07:10:47,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:47,876 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 212 transitions. [2022-11-19 07:10:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:10:47,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:10:47,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:10:47,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:10:47,878 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:10:47,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:10:47,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1245357136, now seen corresponding path program 1 times [2022-11-19 07:10:47,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:10:47,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778692311] [2022-11-19 07:10:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:10:47,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:10:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:10:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:10:48,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:10:48,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778692311] [2022-11-19 07:10:48,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778692311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:10:48,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:10:48,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:10:48,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861013075] [2022-11-19 07:10:48,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:10:48,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:10:48,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:10:48,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:10:48,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:10:48,240 INFO L87 Difference]: Start difference. First operand 154 states and 212 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:50,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:51,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:10:51,148 INFO L93 Difference]: Finished difference Result 247 states and 333 transitions. [2022-11-19 07:10:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:10:51,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 07:10:51,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:10:51,150 INFO L225 Difference]: With dead ends: 247 [2022-11-19 07:10:51,150 INFO L226 Difference]: Without dead ends: 189 [2022-11-19 07:10:51,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:10:51,152 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 152 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:10:51,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 220 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 07:10:51,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-19 07:10:51,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 167. [2022-11-19 07:10:51,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 136 states have (on average 1.375) internal successors, (187), 142 states have internal predecessors, (187), 22 states have call successors, (22), 11 states have call predecessors, (22), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-19 07:10:51,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 226 transitions. [2022-11-19 07:10:51,170 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 226 transitions. Word has length 17 [2022-11-19 07:10:51,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:10:51,171 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 226 transitions. [2022-11-19 07:10:51,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:51,171 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 226 transitions. [2022-11-19 07:10:51,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 07:10:51,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:10:51,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:10:51,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:10:51,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:10:51,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:10:51,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1118642249, now seen corresponding path program 1 times [2022-11-19 07:10:51,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:10:51,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87122323] [2022-11-19 07:10:51,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:10:51,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:10:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:10:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:10:51,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:10:51,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87122323] [2022-11-19 07:10:51,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87122323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:10:51,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:10:51,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:10:51,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319400210] [2022-11-19 07:10:51,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:10:51,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:10:51,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:10:51,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:10:51,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:10:51,735 INFO L87 Difference]: Start difference. First operand 167 states and 226 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:53,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:55,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:56,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:10:56,261 INFO L93 Difference]: Finished difference Result 190 states and 252 transitions. [2022-11-19 07:10:56,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:10:56,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 07:10:56,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:10:56,264 INFO L225 Difference]: With dead ends: 190 [2022-11-19 07:10:56,264 INFO L226 Difference]: Without dead ends: 182 [2022-11-19 07:10:56,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:10:56,265 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 264 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:10:56,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 151 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 07:10:56,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-19 07:10:56,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 172. [2022-11-19 07:10:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 141 states have (on average 1.3687943262411348) internal successors, (193), 147 states have internal predecessors, (193), 22 states have call successors, (22), 11 states have call predecessors, (22), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-19 07:10:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 232 transitions. [2022-11-19 07:10:56,288 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 232 transitions. Word has length 19 [2022-11-19 07:10:56,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:10:56,288 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 232 transitions. [2022-11-19 07:10:56,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:56,289 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 232 transitions. [2022-11-19 07:10:56,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:10:56,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:10:56,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:10:56,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:10:56,291 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:10:56,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:10:56,291 INFO L85 PathProgramCache]: Analyzing trace with hash -89251663, now seen corresponding path program 1 times [2022-11-19 07:10:56,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:10:56,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912741700] [2022-11-19 07:10:56,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:10:56,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:10:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:10:56,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:10:56,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:10:56,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912741700] [2022-11-19 07:10:56,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912741700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:10:56,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:10:56,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:10:56,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551987557] [2022-11-19 07:10:56,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:10:56,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:10:56,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:10:56,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:10:56,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:10:56,819 INFO L87 Difference]: Start difference. First operand 172 states and 232 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:58,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:10:59,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:10:59,881 INFO L93 Difference]: Finished difference Result 190 states and 251 transitions. [2022-11-19 07:10:59,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:10:59,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 07:10:59,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:10:59,883 INFO L225 Difference]: With dead ends: 190 [2022-11-19 07:10:59,883 INFO L226 Difference]: Without dead ends: 182 [2022-11-19 07:10:59,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:10:59,885 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 260 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:10:59,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 155 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 07:10:59,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-19 07:10:59,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 173. [2022-11-19 07:10:59,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 142 states have (on average 1.3661971830985915) internal successors, (194), 148 states have internal predecessors, (194), 22 states have call successors, (22), 11 states have call predecessors, (22), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-19 07:10:59,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 233 transitions. [2022-11-19 07:10:59,904 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 233 transitions. Word has length 20 [2022-11-19 07:10:59,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:10:59,905 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 233 transitions. [2022-11-19 07:10:59,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:10:59,905 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 233 transitions. [2022-11-19 07:10:59,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:10:59,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:10:59,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:10:59,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:10:59,907 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:10:59,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:10:59,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1666612370, now seen corresponding path program 1 times [2022-11-19 07:10:59,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:10:59,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231711982] [2022-11-19 07:10:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:10:59,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:00,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:00,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231711982] [2022-11-19 07:11:00,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231711982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:00,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:00,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:00,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356200071] [2022-11-19 07:11:00,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:00,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:11:00,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:00,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:11:00,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:00,162 INFO L87 Difference]: Start difference. First operand 173 states and 233 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:02,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:03,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:03,926 INFO L93 Difference]: Finished difference Result 176 states and 235 transitions. [2022-11-19 07:11:03,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:11:03,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 07:11:03,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:03,928 INFO L225 Difference]: With dead ends: 176 [2022-11-19 07:11:03,929 INFO L226 Difference]: Without dead ends: 172 [2022-11-19 07:11:03,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:03,930 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 13 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:03,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 235 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 07:11:03,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-19 07:11:03,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-11-19 07:11:03,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 142 states have (on average 1.352112676056338) internal successors, (192), 147 states have internal predecessors, (192), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-19 07:11:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 230 transitions. [2022-11-19 07:11:03,947 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 230 transitions. Word has length 20 [2022-11-19 07:11:03,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:03,948 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 230 transitions. [2022-11-19 07:11:03,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:03,948 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 230 transitions. [2022-11-19 07:11:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:11:03,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:03,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:03,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:11:03,950 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:03,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:03,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1289747072, now seen corresponding path program 1 times [2022-11-19 07:11:03,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:03,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336877652] [2022-11-19 07:11:03,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:03,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:04,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:04,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:04,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336877652] [2022-11-19 07:11:04,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336877652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:04,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:04,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:04,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25778098] [2022-11-19 07:11:04,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:04,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:11:04,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:04,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:11:04,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:11:04,262 INFO L87 Difference]: Start difference. First operand 172 states and 230 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:06,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:07,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:07,393 INFO L93 Difference]: Finished difference Result 181 states and 239 transitions. [2022-11-19 07:11:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:11:07,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 07:11:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:07,396 INFO L225 Difference]: With dead ends: 181 [2022-11-19 07:11:07,396 INFO L226 Difference]: Without dead ends: 164 [2022-11-19 07:11:07,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:07,397 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 244 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:07,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 153 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 07:11:07,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-19 07:11:07,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-11-19 07:11:07,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 134 states have (on average 1.3582089552238805) internal successors, (182), 139 states have internal predecessors, (182), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-19 07:11:07,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 220 transitions. [2022-11-19 07:11:07,416 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 220 transitions. Word has length 21 [2022-11-19 07:11:07,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:07,416 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 220 transitions. [2022-11-19 07:11:07,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:07,417 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 220 transitions. [2022-11-19 07:11:07,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:11:07,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:07,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:07,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:11:07,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:07,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:07,419 INFO L85 PathProgramCache]: Analyzing trace with hash 16114463, now seen corresponding path program 1 times [2022-11-19 07:11:07,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:07,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963028573] [2022-11-19 07:11:07,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:07,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:07,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:07,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:07,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963028573] [2022-11-19 07:11:07,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963028573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:07,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:07,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:07,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009423653] [2022-11-19 07:11:07,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:07,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:11:07,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:07,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:11:07,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:11:07,749 INFO L87 Difference]: Start difference. First operand 164 states and 220 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:09,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:12,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:12,083 INFO L93 Difference]: Finished difference Result 212 states and 280 transitions. [2022-11-19 07:11:12,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:11:12,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 07:11:12,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:12,092 INFO L225 Difference]: With dead ends: 212 [2022-11-19 07:11:12,092 INFO L226 Difference]: Without dead ends: 179 [2022-11-19 07:11:12,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:12,095 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 189 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:12,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 205 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 134 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 07:11:12,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-19 07:11:12,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 164. [2022-11-19 07:11:12,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 134 states have (on average 1.3432835820895523) internal successors, (180), 139 states have internal predecessors, (180), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-19 07:11:12,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 218 transitions. [2022-11-19 07:11:12,120 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 218 transitions. Word has length 27 [2022-11-19 07:11:12,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:12,122 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 218 transitions. [2022-11-19 07:11:12,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:12,122 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 218 transitions. [2022-11-19 07:11:12,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:11:12,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:12,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:12,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:11:12,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:12,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:12,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1278072314, now seen corresponding path program 1 times [2022-11-19 07:11:12,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:12,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174730629] [2022-11-19 07:11:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:12,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:12,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:12,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174730629] [2022-11-19 07:11:12,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174730629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:12,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:12,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:12,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182284670] [2022-11-19 07:11:12,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:12,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:11:12,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:12,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:11:12,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:11:12,595 INFO L87 Difference]: Start difference. First operand 164 states and 218 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:14,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:16,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:17,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:17,968 INFO L93 Difference]: Finished difference Result 197 states and 260 transitions. [2022-11-19 07:11:17,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:11:17,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:11:17,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:17,970 INFO L225 Difference]: With dead ends: 197 [2022-11-19 07:11:17,970 INFO L226 Difference]: Without dead ends: 164 [2022-11-19 07:11:17,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:17,971 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 174 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:17,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 202 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-19 07:11:17,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-19 07:11:17,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-11-19 07:11:17,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 134 states have (on average 1.328358208955224) internal successors, (178), 139 states have internal predecessors, (178), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-19 07:11:17,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 216 transitions. [2022-11-19 07:11:17,994 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 216 transitions. Word has length 28 [2022-11-19 07:11:17,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:17,995 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 216 transitions. [2022-11-19 07:11:17,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:17,995 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 216 transitions. [2022-11-19 07:11:17,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 07:11:17,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:17,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:17,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:11:17,997 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:17,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1058665402, now seen corresponding path program 1 times [2022-11-19 07:11:17,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:17,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314539809] [2022-11-19 07:11:17,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:17,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:18,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:18,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314539809] [2022-11-19 07:11:18,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314539809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:18,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:18,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:18,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645625874] [2022-11-19 07:11:18,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:18,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:11:18,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:18,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:11:18,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:18,234 INFO L87 Difference]: Start difference. First operand 164 states and 216 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:20,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:21,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:22,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:22,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:22,995 INFO L93 Difference]: Finished difference Result 176 states and 231 transitions. [2022-11-19 07:11:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:11:22,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-19 07:11:22,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:22,997 INFO L225 Difference]: With dead ends: 176 [2022-11-19 07:11:22,997 INFO L226 Difference]: Without dead ends: 160 [2022-11-19 07:11:22,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:22,999 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 158 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:22,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 134 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-19 07:11:23,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-19 07:11:23,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-11-19 07:11:23,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 131 states have (on average 1.3129770992366412) internal successors, (172), 135 states have internal predecessors, (172), 20 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-19 07:11:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2022-11-19 07:11:23,022 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 29 [2022-11-19 07:11:23,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:23,022 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2022-11-19 07:11:23,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:23,022 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2022-11-19 07:11:23,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 07:11:23,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:23,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:23,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:11:23,024 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:23,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:23,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1016360206, now seen corresponding path program 1 times [2022-11-19 07:11:23,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:23,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599692531] [2022-11-19 07:11:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:23,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:23,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:23,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:23,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599692531] [2022-11-19 07:11:23,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599692531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:23,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:23,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:11:23,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229633601] [2022-11-19 07:11:23,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:23,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:11:23,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:23,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:11:23,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:11:23,319 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:11:25,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:28,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:28,334 INFO L93 Difference]: Finished difference Result 198 states and 247 transitions. [2022-11-19 07:11:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:11:28,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-11-19 07:11:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:28,336 INFO L225 Difference]: With dead ends: 198 [2022-11-19 07:11:28,336 INFO L226 Difference]: Without dead ends: 159 [2022-11-19 07:11:28,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:11:28,337 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 183 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:28,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 277 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 07:11:28,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-19 07:11:28,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 144. [2022-11-19 07:11:28,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 117 states have (on average 1.2905982905982907) internal successors, (151), 121 states have internal predecessors, (151), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 07:11:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 183 transitions. [2022-11-19 07:11:28,357 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 183 transitions. Word has length 31 [2022-11-19 07:11:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:28,357 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 183 transitions. [2022-11-19 07:11:28,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:11:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 183 transitions. [2022-11-19 07:11:28,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:11:28,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:28,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:28,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:11:28,359 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:28,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1532580384, now seen corresponding path program 1 times [2022-11-19 07:11:28,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:28,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796901477] [2022-11-19 07:11:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:28,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:28,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796901477] [2022-11-19 07:11:28,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796901477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:28,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:28,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:28,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745402358] [2022-11-19 07:11:28,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:28,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:11:28,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:28,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:11:28,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:11:28,985 INFO L87 Difference]: Start difference. First operand 144 states and 183 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:31,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:33,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:33,133 INFO L93 Difference]: Finished difference Result 179 states and 225 transitions. [2022-11-19 07:11:33,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:11:33,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-19 07:11:33,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:33,135 INFO L225 Difference]: With dead ends: 179 [2022-11-19 07:11:33,135 INFO L226 Difference]: Without dead ends: 110 [2022-11-19 07:11:33,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:33,137 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 182 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:33,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 212 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-19 07:11:33,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-19 07:11:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2022-11-19 07:11:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 80 states have internal predecessors, (101), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 07:11:33,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 117 transitions. [2022-11-19 07:11:33,156 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 117 transitions. Word has length 30 [2022-11-19 07:11:33,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:33,157 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 117 transitions. [2022-11-19 07:11:33,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:11:33,157 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 117 transitions. [2022-11-19 07:11:33,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 07:11:33,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:33,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:33,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:11:33,158 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:33,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:33,159 INFO L85 PathProgramCache]: Analyzing trace with hash -953634734, now seen corresponding path program 1 times [2022-11-19 07:11:33,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:33,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905935011] [2022-11-19 07:11:33,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:33,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:33,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:33,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905935011] [2022-11-19 07:11:33,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905935011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:33,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:33,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:11:33,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453790501] [2022-11-19 07:11:33,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:33,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:11:33,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:33,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:11:33,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:33,388 INFO L87 Difference]: Start difference. First operand 93 states and 117 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:11:35,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:38,202 INFO L93 Difference]: Finished difference Result 130 states and 161 transitions. [2022-11-19 07:11:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:11:38,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-11-19 07:11:38,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:38,203 INFO L225 Difference]: With dead ends: 130 [2022-11-19 07:11:38,203 INFO L226 Difference]: Without dead ends: 91 [2022-11-19 07:11:38,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:11:38,205 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:38,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-19 07:11:38,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-19 07:11:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-11-19 07:11:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 76 states have (on average 1.2894736842105263) internal successors, (98), 78 states have internal predecessors, (98), 9 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 07:11:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 113 transitions. [2022-11-19 07:11:38,220 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 113 transitions. Word has length 34 [2022-11-19 07:11:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:38,220 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 113 transitions. [2022-11-19 07:11:38,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:11:38,221 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 113 transitions. [2022-11-19 07:11:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 07:11:38,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:38,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:38,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 07:11:38,222 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:38,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:38,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1599381400, now seen corresponding path program 1 times [2022-11-19 07:11:38,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:38,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35699611] [2022-11-19 07:11:38,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:38,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:38,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:38,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35699611] [2022-11-19 07:11:38,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35699611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:38,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:38,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:11:38,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960696766] [2022-11-19 07:11:38,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:38,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:11:38,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:38,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:11:38,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:38,719 INFO L87 Difference]: Start difference. First operand 91 states and 113 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:11:40,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:43,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:43,578 INFO L93 Difference]: Finished difference Result 99 states and 119 transitions. [2022-11-19 07:11:43,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:11:43,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-11-19 07:11:43,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:43,580 INFO L225 Difference]: With dead ends: 99 [2022-11-19 07:11:43,580 INFO L226 Difference]: Without dead ends: 93 [2022-11-19 07:11:43,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:11:43,581 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 107 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:43,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 163 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-19 07:11:43,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-19 07:11:43,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2022-11-19 07:11:43,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 78 states have internal predecessors, (97), 9 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 07:11:43,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2022-11-19 07:11:43,598 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 34 [2022-11-19 07:11:43,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:43,598 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2022-11-19 07:11:43,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:11:43,599 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2022-11-19 07:11:43,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 07:11:43,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:43,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:43,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 07:11:43,600 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:43,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:43,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1449297037, now seen corresponding path program 1 times [2022-11-19 07:11:43,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:43,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548827677] [2022-11-19 07:11:43,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:43,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:44,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:44,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548827677] [2022-11-19 07:11:44,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548827677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:44,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:44,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:11:44,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965047683] [2022-11-19 07:11:44,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:44,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:11:44,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:44,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:11:44,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:44,166 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:11:46,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:49,715 INFO L93 Difference]: Finished difference Result 128 states and 155 transitions. [2022-11-19 07:11:49,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:11:49,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-11-19 07:11:49,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:49,717 INFO L225 Difference]: With dead ends: 128 [2022-11-19 07:11:49,717 INFO L226 Difference]: Without dead ends: 89 [2022-11-19 07:11:49,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:49,718 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 6 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:49,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 310 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-19 07:11:49,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-19 07:11:49,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-11-19 07:11:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 74 states have (on average 1.2702702702702702) internal successors, (94), 76 states have internal predecessors, (94), 9 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 07:11:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2022-11-19 07:11:49,733 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 36 [2022-11-19 07:11:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:49,733 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2022-11-19 07:11:49,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:11:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2022-11-19 07:11:49,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-19 07:11:49,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:49,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:49,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 07:11:49,735 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:49,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:49,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1015744021, now seen corresponding path program 1 times [2022-11-19 07:11:49,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:49,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8360412] [2022-11-19 07:11:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:49,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:50,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:50,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8360412] [2022-11-19 07:11:50,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8360412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:50,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:50,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:11:50,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113630447] [2022-11-19 07:11:50,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:50,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:11:50,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:50,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:11:50,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:50,158 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:11:52,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:55,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:55,586 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2022-11-19 07:11:55,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:11:55,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-19 07:11:55,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:55,587 INFO L225 Difference]: With dead ends: 104 [2022-11-19 07:11:55,587 INFO L226 Difference]: Without dead ends: 68 [2022-11-19 07:11:55,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:11:55,588 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 23 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:55,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 310 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-19 07:11:55,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-19 07:11:55,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-19 07:11:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 57 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:11:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2022-11-19 07:11:55,603 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 35 [2022-11-19 07:11:55,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:55,603 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2022-11-19 07:11:55,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:11:55,603 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2022-11-19 07:11:55,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 07:11:55,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:55,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:55,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 07:11:55,605 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:55,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:55,605 INFO L85 PathProgramCache]: Analyzing trace with hash -428885076, now seen corresponding path program 1 times [2022-11-19 07:11:55,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:55,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065301038] [2022-11-19 07:11:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:55,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:11:56,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:56,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065301038] [2022-11-19 07:11:56,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065301038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:11:56,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:11:56,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:11:56,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634549340] [2022-11-19 07:11:56,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:11:56,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:11:56,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:11:56,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:11:56,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:11:56,076 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:11:58,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:11:59,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:11:59,685 INFO L93 Difference]: Finished difference Result 107 states and 122 transitions. [2022-11-19 07:11:59,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:11:59,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2022-11-19 07:11:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:11:59,686 INFO L225 Difference]: With dead ends: 107 [2022-11-19 07:11:59,687 INFO L226 Difference]: Without dead ends: 70 [2022-11-19 07:11:59,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:11:59,688 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 55 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:11:59,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 117 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-19 07:11:59,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-19 07:11:59,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2022-11-19 07:11:59,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 57 states have internal predecessors, (64), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:11:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2022-11-19 07:11:59,708 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 40 [2022-11-19 07:11:59,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:11:59,708 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2022-11-19 07:11:59,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:11:59,708 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2022-11-19 07:11:59,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-19 07:11:59,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:59,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:11:59,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 07:11:59,715 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:11:59,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash -45397137, now seen corresponding path program 1 times [2022-11-19 07:11:59,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:59,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796739093] [2022-11-19 07:11:59,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:59,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:12:01,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:01,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796739093] [2022-11-19 07:12:01,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796739093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:01,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:01,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:12:01,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882167145] [2022-11-19 07:12:01,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:01,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:12:01,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:01,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:12:01,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:01,072 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:12:03,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:03,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:03,461 INFO L93 Difference]: Finished difference Result 133 states and 151 transitions. [2022-11-19 07:12:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:03,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2022-11-19 07:12:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:03,462 INFO L225 Difference]: With dead ends: 133 [2022-11-19 07:12:03,463 INFO L226 Difference]: Without dead ends: 69 [2022-11-19 07:12:03,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:03,464 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:03,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 07:12:03,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-19 07:12:03,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-19 07:12:03,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 58 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:12:03,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2022-11-19 07:12:03,481 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 41 [2022-11-19 07:12:03,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:03,481 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2022-11-19 07:12:03,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:12:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2022-11-19 07:12:03,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-19 07:12:03,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:03,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:03,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 07:12:03,483 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:03,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:03,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1339147194, now seen corresponding path program 1 times [2022-11-19 07:12:03,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:03,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033862122] [2022-11-19 07:12:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:03,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:04,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:12:04,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:04,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033862122] [2022-11-19 07:12:04,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033862122] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:12:04,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950631919] [2022-11-19 07:12:04,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:04,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:12:04,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:12:04,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:12:04,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:12:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:05,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 07:12:05,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:12:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:12:06,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:12:06,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950631919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:06,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:12:06,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2022-11-19 07:12:06,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995600021] [2022-11-19 07:12:06,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:06,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:12:06,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:06,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:12:06,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:12:06,171 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:12:08,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:10,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:11,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:11,112 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2022-11-19 07:12:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:12:11,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-19 07:12:11,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:11,114 INFO L225 Difference]: With dead ends: 76 [2022-11-19 07:12:11,114 INFO L226 Difference]: Without dead ends: 73 [2022-11-19 07:12:11,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:12:11,115 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 85 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:11,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 123 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 07:12:11,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-19 07:12:11,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2022-11-19 07:12:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 58 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:12:11,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2022-11-19 07:12:11,134 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 42 [2022-11-19 07:12:11,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:11,135 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2022-11-19 07:12:11,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:12:11,135 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2022-11-19 07:12:11,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-19 07:12:11,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:11,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:11,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:12:11,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:12:11,347 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:11,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:11,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1195445267, now seen corresponding path program 1 times [2022-11-19 07:12:11,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:11,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722265188] [2022-11-19 07:12:11,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:11,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:11,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:12:11,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:11,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722265188] [2022-11-19 07:12:11,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722265188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:11,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:11,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:12:11,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917038794] [2022-11-19 07:12:11,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:11,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:12:11,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:11,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:12:11,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:11,572 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:12:13,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:14,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:15,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:15,137 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2022-11-19 07:12:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:15,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-11-19 07:12:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:15,139 INFO L225 Difference]: With dead ends: 76 [2022-11-19 07:12:15,139 INFO L226 Difference]: Without dead ends: 73 [2022-11-19 07:12:15,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:15,140 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 8 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:15,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 97 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-19 07:12:15,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-19 07:12:15,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2022-11-19 07:12:15,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-19 07:12:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2022-11-19 07:12:15,157 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 41 [2022-11-19 07:12:15,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:15,157 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2022-11-19 07:12:15,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:12:15,158 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2022-11-19 07:12:15,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-19 07:12:15,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:15,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:15,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 07:12:15,159 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:15,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1833709769, now seen corresponding path program 1 times [2022-11-19 07:12:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:15,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296577985] [2022-11-19 07:12:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:12:15,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:15,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296577985] [2022-11-19 07:12:15,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296577985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:15,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:15,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:12:15,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570314666] [2022-11-19 07:12:15,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:15,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:12:15,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:15,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:12:15,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:15,444 INFO L87 Difference]: Start difference. First operand 71 states and 81 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:12:17,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:18,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:18,446 INFO L93 Difference]: Finished difference Result 121 states and 131 transitions. [2022-11-19 07:12:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:18,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2022-11-19 07:12:18,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:18,448 INFO L225 Difference]: With dead ends: 121 [2022-11-19 07:12:18,448 INFO L226 Difference]: Without dead ends: 90 [2022-11-19 07:12:18,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:18,449 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 31 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:18,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 86 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 07:12:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-19 07:12:18,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2022-11-19 07:12:18,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 63 states have internal predecessors, (68), 8 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 07:12:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2022-11-19 07:12:18,465 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 42 [2022-11-19 07:12:18,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:18,465 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2022-11-19 07:12:18,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:12:18,466 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2022-11-19 07:12:18,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-19 07:12:18,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:18,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:18,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-19 07:12:18,467 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:18,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:18,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2046456820, now seen corresponding path program 1 times [2022-11-19 07:12:18,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:18,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749418409] [2022-11-19 07:12:18,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:18,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:12:18,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:18,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749418409] [2022-11-19 07:12:18,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749418409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:18,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:18,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:12:18,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544618182] [2022-11-19 07:12:18,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:18,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:12:18,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:18,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:12:18,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:12:18,980 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:12:20,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:22,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:22,303 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions. [2022-11-19 07:12:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:12:22,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-11-19 07:12:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:22,305 INFO L225 Difference]: With dead ends: 96 [2022-11-19 07:12:22,305 INFO L226 Difference]: Without dead ends: 66 [2022-11-19 07:12:22,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:12:22,306 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 17 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:22,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 156 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-19 07:12:22,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-19 07:12:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2022-11-19 07:12:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.08) internal successors, (54), 50 states have internal predecessors, (54), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 07:12:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2022-11-19 07:12:22,318 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 46 [2022-11-19 07:12:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:22,319 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-11-19 07:12:22,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 07:12:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2022-11-19 07:12:22,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-19 07:12:22,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:22,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:22,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 07:12:22,320 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:22,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:22,321 INFO L85 PathProgramCache]: Analyzing trace with hash -143767182, now seen corresponding path program 1 times [2022-11-19 07:12:22,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:22,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144108267] [2022-11-19 07:12:22,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:22,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:12:23,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:23,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144108267] [2022-11-19 07:12:23,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144108267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:23,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:23,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 07:12:23,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038282199] [2022-11-19 07:12:23,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:23,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 07:12:23,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:23,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 07:12:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:12:23,392 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 11 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:12:25,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:27,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:30,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:32,769 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2022-11-19 07:12:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 07:12:32,770 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2022-11-19 07:12:32,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:32,771 INFO L225 Difference]: With dead ends: 77 [2022-11-19 07:12:32,771 INFO L226 Difference]: Without dead ends: 60 [2022-11-19 07:12:32,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2022-11-19 07:12:32,772 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 85 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:32,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 219 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 280 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-11-19 07:12:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-19 07:12:32,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-19 07:12:32,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.06) internal successors, (53), 50 states have internal predecessors, (53), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 07:12:32,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2022-11-19 07:12:32,787 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 56 [2022-11-19 07:12:32,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:32,787 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2022-11-19 07:12:32,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:12:32,787 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2022-11-19 07:12:32,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-19 07:12:32,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:32,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:32,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-19 07:12:32,789 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:32,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:32,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1603906980, now seen corresponding path program 1 times [2022-11-19 07:12:32,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:32,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83373520] [2022-11-19 07:12:32,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:32,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:12:34,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:34,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83373520] [2022-11-19 07:12:34,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83373520] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:12:34,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337428057] [2022-11-19 07:12:34,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:34,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:12:34,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:12:34,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:12:34,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:12:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:36,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:12:36,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:12:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:12:36,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:12:36,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337428057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:36,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:12:36,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:12:36,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915460638] [2022-11-19 07:12:36,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:36,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:12:36,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:36,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:12:36,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:12:36,041 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 07:12:38,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:38,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:38,616 INFO L93 Difference]: Finished difference Result 108 states and 111 transitions. [2022-11-19 07:12:38,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:38,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 59 [2022-11-19 07:12:38,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:38,618 INFO L225 Difference]: With dead ends: 108 [2022-11-19 07:12:38,618 INFO L226 Difference]: Without dead ends: 61 [2022-11-19 07:12:38,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:12:38,619 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:38,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 07:12:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-19 07:12:38,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-19 07:12:38,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 51 states have internal predecessors, (54), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 07:12:38,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2022-11-19 07:12:38,635 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 59 [2022-11-19 07:12:38,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:38,635 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2022-11-19 07:12:38,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-19 07:12:38,635 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2022-11-19 07:12:38,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-19 07:12:38,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:38,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:38,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:12:38,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-19 07:12:38,852 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:38,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:38,852 INFO L85 PathProgramCache]: Analyzing trace with hash 371675837, now seen corresponding path program 1 times [2022-11-19 07:12:38,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:38,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716593961] [2022-11-19 07:12:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:38,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:12:40,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:40,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716593961] [2022-11-19 07:12:40,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716593961] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:12:40,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104525880] [2022-11-19 07:12:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:40,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:12:40,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:12:40,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:12:40,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:12:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:41,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 07:12:41,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:12:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:12:41,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:12:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:12:41,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104525880] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 07:12:41,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:12:41,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 5] total 8 [2022-11-19 07:12:41,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420380679] [2022-11-19 07:12:41,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:41,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:12:41,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:41,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:12:41,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:12:41,824 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 07:12:43,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:12:44,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:44,982 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2022-11-19 07:12:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:12:44,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 60 [2022-11-19 07:12:44,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:44,984 INFO L225 Difference]: With dead ends: 108 [2022-11-19 07:12:44,984 INFO L226 Difference]: Without dead ends: 62 [2022-11-19 07:12:44,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:12:44,985 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 25 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:44,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 108 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 07:12:44,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-19 07:12:45,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-19 07:12:45,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 52 states have internal predecessors, (55), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 07:12:45,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2022-11-19 07:12:45,002 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 60 [2022-11-19 07:12:45,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:45,002 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2022-11-19 07:12:45,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 07:12:45,002 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2022-11-19 07:12:45,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 07:12:45,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:45,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:45,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:12:45,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-19 07:12:45,220 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:45,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:45,221 INFO L85 PathProgramCache]: Analyzing trace with hash 2060201350, now seen corresponding path program 1 times [2022-11-19 07:12:45,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:45,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897739718] [2022-11-19 07:12:45,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:45,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:46,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:12:46,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:46,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897739718] [2022-11-19 07:12:46,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897739718] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:12:46,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051170572] [2022-11-19 07:12:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:46,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:12:46,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:12:46,332 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:12:46,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:12:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:48,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-19 07:12:48,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:12:48,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:12:48,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:12:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:12:48,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051170572] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:12:48,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1118765576] [2022-11-19 07:12:48,352 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2022-11-19 07:12:48,352 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:12:48,355 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:12:48,361 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:12:48,361 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:12:48,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:12:48,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:12:48,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:12:48,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:12:48,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:12:48,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:12:48,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:12:48,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:12:49,460 INFO L321 Elim1Store]: treesize reduction 776, result has 19.4 percent of original size [2022-11-19 07:12:49,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 47 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 43 treesize of output 206 [2022-11-19 07:13:05,902 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#devobj~0#1.base| 1) [2022-11-19 07:13:05,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:07,911 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_DriverEntry_#in~DriverObject#1.base| 1) [2022-11-19 07:13:07,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:09,920 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.base| 1) [2022-11-19 07:13:09,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:11,927 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= ~pirp~0.base 1) [2022-11-19 07:13:11,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:13,932 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#devobj~0#1.base| |ULTIMATE.start_DriverEntry_#in~DriverObject#1.base|) [2022-11-19 07:13:15,935 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |ULTIMATE.start_main_~#devobj~0#1.base| |ULTIMATE.start_DriverEntry_#in~DriverObject#1.base|) [2022-11-19 07:13:17,943 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.base| |ULTIMATE.start_main_~#devobj~0#1.base|) [2022-11-19 07:13:19,959 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |ULTIMATE.start_main_~#stack~0#1.base| |ULTIMATE.start_main_~#devobj~0#1.base|) [2022-11-19 07:13:21,966 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= ~pirp~0.base |ULTIMATE.start_main_~#devobj~0#1.base|) [2022-11-19 07:13:23,973 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= ~pirp~0.base |ULTIMATE.start_main_~#devobj~0#1.base|) [2022-11-19 07:13:25,977 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.base| |ULTIMATE.start_DriverEntry_#in~DriverObject#1.base|) [2022-11-19 07:13:27,983 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |ULTIMATE.start_main_~#stack~0#1.base| |ULTIMATE.start_DriverEntry_#in~DriverObject#1.base|) [2022-11-19 07:13:29,999 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= ~pirp~0.base |ULTIMATE.start_DriverEntry_#in~DriverObject#1.base|) [2022-11-19 07:13:32,002 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= ~pirp~0.base |ULTIMATE.start_DriverEntry_#in~DriverObject#1.base|) [2022-11-19 07:13:34,007 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 36) 0) [2022-11-19 07:13:34,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:36,011 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 72 |ULTIMATE.start_main_~#stack~0#1.offset|) 0) [2022-11-19 07:13:36,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:38,027 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 1) 0) [2022-11-19 07:13:38,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:40,034 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 37) 0) [2022-11-19 07:13:40,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:42,044 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 73) 0) [2022-11-19 07:13:42,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:44,050 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 16 |ULTIMATE.start_main_~#stack~0#1.offset|) 0) [2022-11-19 07:13:44,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:46,057 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 52 |ULTIMATE.start_main_~#stack~0#1.offset|) 0) [2022-11-19 07:13:46,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:48,060 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 88 |ULTIMATE.start_main_~#stack~0#1.offset|) 0) [2022-11-19 07:13:48,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:50,068 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 8) 0) [2022-11-19 07:13:50,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:52,073 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 44 |ULTIMATE.start_main_~#stack~0#1.offset|) 0) [2022-11-19 07:13:52,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:54,077 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= 0 (+ |ULTIMATE.start_main_~#stack~0#1.offset| 80)) [2022-11-19 07:13:54,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:56,097 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 12) 0) [2022-11-19 07:13:56,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:13:58,104 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 48) 0) [2022-11-19 07:13:58,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:00,111 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 84 |ULTIMATE.start_main_~#stack~0#1.offset|) 0) [2022-11-19 07:14:00,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:02,116 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.base| ~pirp~0.base) [2022-11-19 07:14:04,121 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |ULTIMATE.start_main_~#stack~0#1.base| ~pirp~0.base) [2022-11-19 07:14:04,124 INFO L217 Elim1Store]: Index analysis took 60226 ms [2022-11-19 07:14:06,132 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| 1) 0)) [2022-11-19 07:14:08,141 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| 1) 0)) [2022-11-19 07:14:10,146 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| 1) 1) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:14:12,151 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| 1) 1) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:14:14,159 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#devobj~0#1.offset| (+ 44 |ULTIMATE.start_main_~#stack~0#1.offset|)) [2022-11-19 07:14:14,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:16,163 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ |ULTIMATE.start_main_~#stack~0#1.offset| 60)) [2022-11-19 07:14:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:18,172 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ 12 |ULTIMATE.start_main_~#irp~0#1.offset|)) [2022-11-19 07:14:18,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:20,180 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 84 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:14:22,183 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 84 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:14:24,187 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ |ULTIMATE.start_main_~#devobj~0#1.offset| 28)) [2022-11-19 07:14:24,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:26,193 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#d~0#1.offset| 12) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:14:26,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:28,196 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 84 |ULTIMATE.start_main_~#irp~0#1.offset|) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:14:28,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:30,206 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 12)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:14:32,209 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 12)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:14:34,217 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ 16 |ULTIMATE.start_main_~#devobj~0#1.offset|)) [2022-11-19 07:14:34,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:36,222 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 40 |ULTIMATE.start_main_~#devobj~0#1.offset|) 0) [2022-11-19 07:14:36,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:38,229 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#devobj~0#1.offset| 4) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:14:38,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:40,234 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 32 |ULTIMATE.start_main_~#stack~0#1.offset|) |ULTIMATE.start_main_~#devobj~0#1.offset|) [2022-11-19 07:14:40,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:42,241 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#devobj~0#1.offset| 39) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:14:42,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:44,254 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 3 |ULTIMATE.start_main_~#devobj~0#1.offset|) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:14:44,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:46,287 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#devobj~0#1.offset| (+ |ULTIMATE.start_main_~#stack~0#1.offset| 33)) [2022-11-19 07:14:46,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:48,290 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#devobj~0#1.offset| 24) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:14:48,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:50,296 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#devobj~0#1.offset| (+ |ULTIMATE.start_main_~#stack~0#1.offset| 12)) [2022-11-19 07:14:50,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:52,299 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 48) |ULTIMATE.start_main_~#devobj~0#1.offset|) [2022-11-19 07:14:52,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:54,306 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 32 |ULTIMATE.start_main_~#devobj~0#1.offset|) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:14:54,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:56,311 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 4) |ULTIMATE.start_main_~#devobj~0#1.offset|) [2022-11-19 07:14:56,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:14:58,315 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 40 |ULTIMATE.start_main_~#stack~0#1.offset|) |ULTIMATE.start_main_~#devobj~0#1.offset|) [2022-11-19 07:14:58,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:00,324 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 8) |ULTIMATE.start_main_~#devobj~0#1.offset|) [2022-11-19 07:15:00,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:02,329 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#devobj~0#1.offset| (+ 56 |ULTIMATE.start_main_~#irp~0#1.offset|)) [2022-11-19 07:15:02,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:04,338 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#devobj~0#1.base|) (+ 40 |ULTIMATE.start_main_~#devobj~0#1.offset|)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:15:06,341 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#devobj~0#1.base|) (+ 40 |ULTIMATE.start_main_~#devobj~0#1.offset|)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:15:08,347 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#d~0#1.offset| 24) 0) [2022-11-19 07:15:08,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:10,355 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ |ULTIMATE.start_main_~#stack~0#1.offset| 12)) [2022-11-19 07:15:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:12,363 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ |ULTIMATE.start_main_~#stack~0#1.offset| 48)) [2022-11-19 07:15:12,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:14,369 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 23 |ULTIMATE.start_main_~#d~0#1.offset|) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:15:14,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:16,373 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 13) |ULTIMATE.start_main_~#d~0#1.offset|) [2022-11-19 07:15:16,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:18,380 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ 49 |ULTIMATE.start_main_~#stack~0#1.offset|)) [2022-11-19 07:15:18,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:20,385 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#d~0#1.offset| 8) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:15:20,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:22,392 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#stack~0#1.offset| 28) |ULTIMATE.start_main_~#d~0#1.offset|) [2022-11-19 07:15:22,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:24,400 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ 64 |ULTIMATE.start_main_~#stack~0#1.offset|)) [2022-11-19 07:15:24,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:26,408 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#d~0#1.offset| 16) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:15:26,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:28,413 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ |ULTIMATE.start_main_~#stack~0#1.offset| 20)) [2022-11-19 07:15:28,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:30,419 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ 56 |ULTIMATE.start_main_~#stack~0#1.offset|)) [2022-11-19 07:15:30,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:32,423 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ |ULTIMATE.start_main_~#stack~0#1.offset| 24)) [2022-11-19 07:15:32,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:34,432 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#d~0#1.offset| (+ 72 |ULTIMATE.start_main_~#irp~0#1.offset|)) [2022-11-19 07:15:34,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:36,438 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#d~0#1.base|) (+ |ULTIMATE.start_main_~#d~0#1.offset| 24))) [2022-11-19 07:15:38,445 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#d~0#1.base|) (+ |ULTIMATE.start_main_~#d~0#1.offset| 24))) [2022-11-19 07:15:40,452 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ 44 |ULTIMATE.start_main_~#irp~0#1.offset|)) [2022-11-19 07:15:40,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:42,457 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 52 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:15:44,461 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 52 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:15:46,466 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ 23 |ULTIMATE.start_main_~#irp~0#1.offset|)) [2022-11-19 07:15:46,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:48,469 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 73)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:15:50,472 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 73)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:15:52,479 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= 0 (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) [2022-11-19 07:15:52,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:54,482 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 60 |ULTIMATE.start_main_~#irp~0#1.offset|) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:15:54,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:56,486 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ |ULTIMATE.start_main_~#irp~0#1.offset| 24)) [2022-11-19 07:15:56,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:15:58,494 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 95 |ULTIMATE.start_main_~#irp~0#1.offset|) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:15:58,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:00,499 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 59 |ULTIMATE.start_main_~#irp~0#1.offset|) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:16:00,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:02,503 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ |ULTIMATE.start_main_~#irp~0#1.offset| 80)) [2022-11-19 07:16:02,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:04,509 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ 8 |ULTIMATE.start_main_~#irp~0#1.offset|)) [2022-11-19 07:16:04,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:06,515 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ 88 |ULTIMATE.start_main_~#irp~0#1.offset|)) [2022-11-19 07:16:06,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:08,520 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ 52 |ULTIMATE.start_main_~#irp~0#1.offset|)) [2022-11-19 07:16:08,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:10,527 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_main_~#stack~0#1.offset| (+ 16 |ULTIMATE.start_main_~#irp~0#1.offset|)) [2022-11-19 07:16:10,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:12,535 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ 48 |ULTIMATE.start_main_~#irp~0#1.offset|) |ULTIMATE.start_main_~#stack~0#1.offset|) [2022-11-19 07:16:12,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:16:14,540 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 88 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:16:16,544 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 88 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:16:18,551 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 36)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:20,555 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 36)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:22,562 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 80)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:24,568 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 80)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:26,571 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 44 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:16:28,575 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 44 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:16:30,579 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 1)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:32,586 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 1)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:34,597 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) |ULTIMATE.start_main_~#stack~0#1.offset|)) [2022-11-19 07:16:36,602 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) |ULTIMATE.start_main_~#stack~0#1.offset|)) [2022-11-19 07:16:38,608 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 8)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:40,616 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 8)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:42,624 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 16 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:16:44,627 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 16 |ULTIMATE.start_main_~#stack~0#1.offset|))) [2022-11-19 07:16:46,631 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 48))) [2022-11-19 07:16:48,637 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 48))) [2022-11-19 07:16:50,641 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 72 |ULTIMATE.start_main_~#stack~0#1.offset|)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:52,644 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ 72 |ULTIMATE.start_main_~#stack~0#1.offset|)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:54,648 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 37)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:56,651 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#stack~0#1.base|) (+ |ULTIMATE.start_main_~#stack~0#1.offset| 37)) (select (select |v_#memory_int_496| |ULTIMATE.start_main_~#irp~0#1.base|) (+ |ULTIMATE.start_main_~#irp~0#1.offset| 96))) [2022-11-19 07:16:56,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 162 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 172 [2022-11-19 07:17:08,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:08,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:08,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:09,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:09,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:09,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:10,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:10,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:10,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:11,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:11,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:11,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:12,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:12,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:12,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:12,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:13,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:13,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:13,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:17,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:19,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:20,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:20,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:20,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:21,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:21,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:21,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:23,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:24,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:25,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:26,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:26,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:27,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:28,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:28,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:28,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:29,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:29,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:29,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:30,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:30,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:30,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:17:30,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:17:30,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:17:30,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:17:30,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:17:30,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:17:30,734 INFO L217 Elim1Store]: Index analysis took 25584 ms [2022-11-19 07:17:31,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:31,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:31,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:31,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:32,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:32,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:32,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:33,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:33,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:33,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:33,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:34,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:34,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:34,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:34,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:34,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:35,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:36,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:37,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:37,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:37,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:38,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:39,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:39,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:39,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:39,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:40,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:40,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:40,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:40,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:41,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:41,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:41,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:41,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:42,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:42,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:42,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:42,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:43,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:44,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:44,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:45,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:45,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:45,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:45,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:46,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:46,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:46,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:46,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:47,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:47,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:48,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:48,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:49,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:49,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:49,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:49,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:50,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:50,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:51,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:51,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:51,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:51,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:51,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:52,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:52,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:52,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:52,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:53,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:53,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:53,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:53,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:54,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:55,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:55,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:55,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:56,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:56,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:57,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:57,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:57,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:57,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:17:57,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:58,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:58,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:58,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:58,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:59,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:17:59,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:00,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:00,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:01,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:01,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:01,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:01,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:01,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:02,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:02,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:02,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:02,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:03,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:03,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:03,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:04,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:04,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:04,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:05,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:05,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:06,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:07,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:07,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:08,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:08,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:08,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:09,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:09,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:10,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:10,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:10,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:10,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:11,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:11,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:12,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:12,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:13,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:13,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:13,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:14,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:14,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:15,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:15,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:15,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:15,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:16,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:17,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:17,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:17,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:18,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:18,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:19,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:19,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:20,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:20,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:20,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:21,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:21,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:22,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:22,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:23,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:23,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:23,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:24,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:24,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:24,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:24,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:25,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:25,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:25,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:26,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:43,955 WARN L233 SmtUtils]: Spent 3.30m on a formula simplification. DAG size of input: 131 DAG size of output: 83 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:21:43,956 INFO L321 Elim1Store]: treesize reduction 695, result has 24.0 percent of original size [2022-11-19 07:21:43,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 308 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 3809 treesize of output 1168 [2022-11-19 07:21:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:47,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:21:48,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,834 INFO L217 Elim1Store]: Index analysis took 1803 ms [2022-11-19 07:21:48,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:48,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:49,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:50,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:21:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:51,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:21:52,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:12,980 WARN L233 SmtUtils]: Spent 20.04s on a formula simplification. DAG size of input: 372 DAG size of output: 173 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:22:12,982 INFO L321 Elim1Store]: treesize reduction 3242, result has 12.1 percent of original size [2022-11-19 07:22:12,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 304 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 25 case distinctions, treesize of input 2728 treesize of output 997 [2022-11-19 07:22:14,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:14,406 INFO L217 Elim1Store]: Index analysis took 1223 ms [2022-11-19 07:22:19,160 INFO L321 Elim1Store]: treesize reduction 528, result has 8.5 percent of original size [2022-11-19 07:22:19,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 18 case distinctions, treesize of input 701 treesize of output 598 [2022-11-19 07:22:19,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:19,837 INFO L217 Elim1Store]: Index analysis took 568 ms [2022-11-19 07:22:23,396 INFO L321 Elim1Store]: treesize reduction 250, result has 16.4 percent of original size [2022-11-19 07:22:23,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 18 case distinctions, treesize of input 691 treesize of output 646 [2022-11-19 07:22:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:24,220 INFO L321 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2022-11-19 07:22:24,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 65 [2022-11-19 07:22:24,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:24,789 INFO L321 Elim1Store]: treesize reduction 115, result has 35.0 percent of original size [2022-11-19 07:22:24,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 114 [2022-11-19 07:22:24,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:25,054 INFO L321 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2022-11-19 07:22:25,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 105 [2022-11-19 07:22:25,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:25,264 INFO L321 Elim1Store]: treesize reduction 52, result has 45.8 percent of original size [2022-11-19 07:22:25,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 87 [2022-11-19 07:22:25,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:25,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:25,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 68 [2022-11-19 07:22:25,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:25,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:25,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:25,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 68 [2022-11-19 07:22:25,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:22:25,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-19 07:22:25,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:26,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:26,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 124 [2022-11-19 07:22:26,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:26,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:26,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:26,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 132 [2022-11-19 07:22:26,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:26,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:26,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 124 [2022-11-19 07:22:26,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:22:26,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:26,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-19 07:22:27,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:27,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2022-11-19 07:22:27,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:22:27,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:27,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2022-11-19 07:22:27,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:22:27,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:27,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 135 [2022-11-19 07:22:27,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:27,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:28,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 127 [2022-11-19 07:22:28,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,333 INFO L217 Elim1Store]: Index analysis took 133 ms [2022-11-19 07:22:28,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 197 [2022-11-19 07:22:28,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,619 INFO L217 Elim1Store]: Index analysis took 163 ms [2022-11-19 07:22:28,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 197 [2022-11-19 07:22:28,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:28,939 INFO L217 Elim1Store]: Index analysis took 206 ms [2022-11-19 07:22:28,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 207 [2022-11-19 07:22:29,100 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:22:29,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,399 INFO L217 Elim1Store]: Index analysis took 223 ms [2022-11-19 07:22:29,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 136 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 210 [2022-11-19 07:22:29,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,643 INFO L217 Elim1Store]: Index analysis took 154 ms [2022-11-19 07:22:29,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 200 [2022-11-19 07:22:29,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:29,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,089 INFO L217 Elim1Store]: Index analysis took 305 ms [2022-11-19 07:22:30,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 136 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 205 [2022-11-19 07:22:30,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,413 INFO L217 Elim1Store]: Index analysis took 179 ms [2022-11-19 07:22:30,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 197 [2022-11-19 07:22:30,643 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:22:30,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:30,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,090 INFO L217 Elim1Store]: Index analysis took 287 ms [2022-11-19 07:22:31,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 207 [2022-11-19 07:22:31,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:31,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:31,511 INFO L217 Elim1Store]: Index analysis took 189 ms [2022-11-19 07:22:31,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 153 disjoint index pairs (out of 171 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 3995 treesize of output 3553 [2022-11-19 07:22:32,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:22:32,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:32,386 INFO L217 Elim1Store]: Index analysis took 208 ms [2022-11-19 07:22:32,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 153 disjoint index pairs (out of 171 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 5485 treesize of output 4413 [2022-11-19 07:22:33,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:33,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:33,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:33,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:33,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:33,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:33,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:33,641 INFO L217 Elim1Store]: Index analysis took 296 ms [2022-11-19 07:22:34,497 INFO L321 Elim1Store]: treesize reduction 1205, result has 8.4 percent of original size [2022-11-19 07:22:34,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 22 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 60 case distinctions, treesize of input 200 treesize of output 273 [2022-11-19 07:22:34,663 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-11-19 07:22:34,989 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 5400 conjuctions. This might take some time... [2022-11-19 07:22:46,261 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 2400 conjuctions. [2022-11-19 07:22:46,501 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-11-19 07:22:46,773 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 5400 conjuctions. This might take some time... [2022-11-19 07:22:58,082 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 2400 conjuctions. [2022-11-19 07:22:59,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:59,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:22:59,634 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-19 07:22:59,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 217 treesize of output 260 [2022-11-19 07:23:00,619 INFO L321 Elim1Store]: treesize reduction 72, result has 38.5 percent of original size [2022-11-19 07:23:00,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 212 treesize of output 271 [2022-11-19 07:23:00,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 97 [2022-11-19 07:23:00,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:23:00,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:23:01,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:23:01,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-19 07:23:01,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:01,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-19 07:23:01,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:01,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-19 07:23:01,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:01,560 INFO L321 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-11-19 07:23:01,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 10 [2022-11-19 07:23:01,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:23:01,645 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-19 07:23:01,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 7 [2022-11-19 07:23:01,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:23:01,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:23:02,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:23:02,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-19 07:23:02,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-19 07:23:02,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:02,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:02,695 INFO L321 Elim1Store]: treesize reduction 169, result has 28.1 percent of original size [2022-11-19 07:23:02,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 214 treesize of output 560 [2022-11-19 07:23:02,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:02,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:23:02,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:23:02,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:23:02,961 INFO L217 Elim1Store]: Index analysis took 195 ms [2022-11-19 07:23:03,193 INFO L321 Elim1Store]: treesize reduction 137, result has 11.6 percent of original size [2022-11-19 07:23:03,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 232 treesize of output 524 [2022-11-19 07:23:03,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 30 [2022-11-19 07:23:03,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 30 [2022-11-19 07:23:03,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 36 [2022-11-19 07:23:03,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:03,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 88 [2022-11-19 07:23:03,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:03,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:03,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:03,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 193 [2022-11-19 07:23:04,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:04,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:04,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:04,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 45 [2022-11-19 07:23:04,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:04,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:04,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:04,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 904 treesize of output 768 [2022-11-19 07:23:04,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:23:04,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 604 treesize of output 464 [2022-11-19 07:23:04,634 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:23:04,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:04,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:23:04,873 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) 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) [2022-11-19 07:23:04,886 INFO L158 Benchmark]: Toolchain (without parser) took 755881.17ms. Allocated memory was 96.5MB in the beginning and 497.0MB in the end (delta: 400.6MB). Free memory was 70.2MB in the beginning and 177.6MB in the end (delta: -107.4MB). Peak memory consumption was 374.3MB. Max. memory is 16.1GB. [2022-11-19 07:23:04,886 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 68.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:23:04,886 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1290.54ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 69.9MB in the beginning and 82.3MB in the end (delta: -12.4MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2022-11-19 07:23:04,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.89ms. Allocated memory is still 125.8MB. Free memory was 82.3MB in the beginning and 75.5MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:23:04,887 INFO L158 Benchmark]: Boogie Preprocessor took 102.31ms. Allocated memory is still 125.8MB. Free memory was 75.5MB in the beginning and 67.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:23:04,887 INFO L158 Benchmark]: RCFGBuilder took 4363.82ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 66.5MB in the beginning and 113.7MB in the end (delta: -47.2MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2022-11-19 07:23:04,888 INFO L158 Benchmark]: TraceAbstraction took 749964.97ms. Allocated memory was 182.5MB in the beginning and 497.0MB in the end (delta: 314.6MB). Free memory was 113.7MB in the beginning and 177.6MB in the end (delta: -63.9MB). Peak memory consumption was 331.8MB. Max. memory is 16.1GB. [2022-11-19 07:23:04,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 68.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1290.54ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 69.9MB in the beginning and 82.3MB in the end (delta: -12.4MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.89ms. Allocated memory is still 125.8MB. Free memory was 82.3MB in the beginning and 75.5MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.31ms. Allocated memory is still 125.8MB. Free memory was 75.5MB in the beginning and 67.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 4363.82ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 66.5MB in the beginning and 113.7MB in the end (delta: -47.2MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. * TraceAbstraction took 749964.97ms. Allocated memory was 182.5MB in the beginning and 497.0MB in the end (delta: 314.6MB). Free memory was 113.7MB in the beginning and 177.6MB in the end (delta: -63.9MB). Peak memory consumption was 331.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-19 07:23:04,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS --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 32bit --witnessprinter.graph.data.programhash 791fd4c1f54f973c646b3f11f7eb2f654eca269cacf7e504443ee0d13fbe9694 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:23:07,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:23:07,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:23:07,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:23:07,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:23:07,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:23:07,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:23:07,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:23:07,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:23:07,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:23:07,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:23:07,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:23:07,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:23:07,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:23:07,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:23:07,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:23:07,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:23:07,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:23:07,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:23:07,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:23:07,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:23:07,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:23:07,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:23:07,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:23:07,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:23:07,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:23:07,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:23:07,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:23:07,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:23:07,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:23:07,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:23:07,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:23:07,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:23:07,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:23:07,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:23:07,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:23:07,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:23:07,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:23:07,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:23:07,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:23:07,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:23:07,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 07:23:07,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:23:07,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:23:07,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:23:07,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:23:07,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:23:07,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:23:07,472 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:23:07,472 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:23:07,472 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:23:07,472 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:23:07,473 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:23:07,474 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:23:07,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:23:07,476 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:23:07,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:23:07,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:23:07,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:23:07,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:23:07,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:23:07,477 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:23:07,477 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:23:07,477 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:23:07,478 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:23:07,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:23:07,478 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:23:07,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:23:07,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:23:07,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:23:07,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:23:07,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:23:07,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:23:07,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:23:07,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:23:07,480 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:23:07,481 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:23:07,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:23:07,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:23:07,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:23:07,482 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_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 791fd4c1f54f973c646b3f11f7eb2f654eca269cacf7e504443ee0d13fbe9694 [2022-11-19 07:23:07,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:23:07,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:23:07,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:23:07,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:23:07,931 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:23:07,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c [2022-11-19 07:23:08,003 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data/8135986c3/4e5da6bc4dd0497b9b5c0c5f616e6883/FLAG90f67afc5 [2022-11-19 07:23:08,773 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:23:08,773 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c [2022-11-19 07:23:08,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data/8135986c3/4e5da6bc4dd0497b9b5c0c5f616e6883/FLAG90f67afc5 [2022-11-19 07:23:08,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/data/8135986c3/4e5da6bc4dd0497b9b5c0c5f616e6883 [2022-11-19 07:23:08,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:23:08,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:23:08,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:23:08,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:23:08,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:23:08,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:23:08" (1/1) ... [2022-11-19 07:23:08,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8c9046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:08, skipping insertion in model container [2022-11-19 07:23:08,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:23:08" (1/1) ... [2022-11-19 07:23:08,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:23:09,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:23:09,729 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c[62209,62222] [2022-11-19 07:23:09,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:23:09,948 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 07:23:09,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:23:10,025 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c[62209,62222] [2022-11-19 07:23:10,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:23:10,151 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:23:10,208 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c[62209,62222] [2022-11-19 07:23:10,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:23:10,344 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:23:10,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10 WrapperNode [2022-11-19 07:23:10,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:23:10,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:23:10,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:23:10,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:23:10,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,483 INFO L138 Inliner]: procedures = 113, calls = 328, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1052 [2022-11-19 07:23:10,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:23:10,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:23:10,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:23:10,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:23:10,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,564 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:23:10,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:23:10,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:23:10,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:23:10,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (1/1) ... [2022-11-19 07:23:10,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:23:10,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:23:10,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:23:10,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:23:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2022-11-19 07:23:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2022-11-19 07:23:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-19 07:23:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 07:23:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:23:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:23:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-11-19 07:23:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-11-19 07:23:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-19 07:23:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-11-19 07:23:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-11-19 07:23:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-19 07:23:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-11-19 07:23:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-11-19 07:23:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:23:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:23:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:23:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:23:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-11-19 07:23:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-11-19 07:23:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2022-11-19 07:23:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2022-11-19 07:23:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-19 07:23:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:23:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-19 07:23:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:23:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 07:23:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:23:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-19 07:23:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:23:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:23:10,693 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2022-11-19 07:23:10,693 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2022-11-19 07:23:11,256 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:23:11,261 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:23:11,529 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:23:11,568 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2022-11-19 07:23:11,569 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2022-11-19 07:23:11,571 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:23:11,573 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:23:11,575 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:23:11,580 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:23:11,587 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:23:11,592 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:23:11,601 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:23:19,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume false; [2022-11-19 07:23:19,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume !false; [2022-11-19 07:23:19,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2022-11-19 07:23:19,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2022-11-19 07:23:19,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2022-11-19 07:23:19,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2022-11-19 07:23:19,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2022-11-19 07:23:19,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2022-11-19 07:23:19,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-11-19 07:23:19,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume !false; [2022-11-19 07:23:19,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-11-19 07:23:19,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##156: assume false; [2022-11-19 07:23:19,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !false; [2022-11-19 07:23:19,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##113: assume false; [2022-11-19 07:23:19,650 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:23:19,671 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:23:19,672 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:23:19,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:23:19 BoogieIcfgContainer [2022-11-19 07:23:19,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:23:19,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:23:19,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:23:19,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:23:19,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:23:08" (1/3) ... [2022-11-19 07:23:19,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a5209b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:23:19, skipping insertion in model container [2022-11-19 07:23:19,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:23:10" (2/3) ... [2022-11-19 07:23:19,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a5209b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:23:19, skipping insertion in model container [2022-11-19 07:23:19,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:23:19" (3/3) ... [2022-11-19 07:23:19,693 INFO L112 eAbstractionObserver]: Analyzing ICFG kbfiltr.i.cil-2.c [2022-11-19 07:23:19,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:23:19,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:23:19,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:23:19,810 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;@2636bf4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:23:19,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:23:19,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 201 states have (on average 1.572139303482587) internal successors, (316), 219 states have internal predecessors, (316), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-19 07:23:19,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:23:19,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:19,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:19,830 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:19,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:19,839 INFO L85 PathProgramCache]: Analyzing trace with hash -660511916, now seen corresponding path program 1 times [2022-11-19 07:23:19,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:19,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65832131] [2022-11-19 07:23:19,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:19,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:19,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:19,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:19,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:23:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:20,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:23:20,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:20,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:20,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:20,531 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:20,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65832131] [2022-11-19 07:23:20,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65832131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:20,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:23:20,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:23:20,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218619127] [2022-11-19 07:23:20,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:20,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:23:20,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:20,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:23:20,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:23:20,572 INFO L87 Difference]: Start difference. First operand has 239 states, 201 states have (on average 1.572139303482587) internal successors, (316), 219 states have internal predecessors, (316), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:20,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:20,641 INFO L93 Difference]: Finished difference Result 472 states and 755 transitions. [2022-11-19 07:23:20,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:23:20,647 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 07:23:20,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:20,658 INFO L225 Difference]: With dead ends: 472 [2022-11-19 07:23:20,658 INFO L226 Difference]: Without dead ends: 231 [2022-11-19 07:23:20,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:23:20,667 INFO L413 NwaCegarLoop]: 355 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, 355 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 [2022-11-19 07:23:20,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:23:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-19 07:23:20,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-11-19 07:23:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 195 states have (on average 1.5128205128205128) internal successors, (295), 211 states have internal predecessors, (295), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:23:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 339 transitions. [2022-11-19 07:23:20,731 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 339 transitions. Word has length 16 [2022-11-19 07:23:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:20,732 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 339 transitions. [2022-11-19 07:23:20,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:20,732 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 339 transitions. [2022-11-19 07:23:20,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:23:20,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:20,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:20,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:20,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:20,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:20,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:20,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1247317930, now seen corresponding path program 1 times [2022-11-19 07:23:20,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:20,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538373722] [2022-11-19 07:23:20,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:20,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:20,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:20,958 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:20,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:23:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:21,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:23:21,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:21,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:21,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:21,637 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:21,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538373722] [2022-11-19 07:23:21,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538373722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:21,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:23:21,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:23:21,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037015314] [2022-11-19 07:23:21,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:21,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:23:21,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:21,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:23:21,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:23:21,642 INFO L87 Difference]: Start difference. First operand 231 states and 339 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:23,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:23,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:23,838 INFO L93 Difference]: Finished difference Result 248 states and 360 transitions. [2022-11-19 07:23:23,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:23:23,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 07:23:23,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:23,841 INFO L225 Difference]: With dead ends: 248 [2022-11-19 07:23:23,842 INFO L226 Difference]: Without dead ends: 231 [2022-11-19 07:23:23,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:23:23,844 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 249 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:23,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 737 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 07:23:23,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-19 07:23:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-11-19 07:23:23,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 195 states have (on average 1.5076923076923077) internal successors, (294), 211 states have internal predecessors, (294), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:23:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 338 transitions. [2022-11-19 07:23:23,874 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 338 transitions. Word has length 16 [2022-11-19 07:23:23,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:23,874 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 338 transitions. [2022-11-19 07:23:23,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:23,875 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 338 transitions. [2022-11-19 07:23:23,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:23:23,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:23,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:23,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:24,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:24,105 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:24,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:24,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1034619550, now seen corresponding path program 1 times [2022-11-19 07:23:24,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:24,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497271639] [2022-11-19 07:23:24,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:24,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:24,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:24,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:24,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 07:23:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:24,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:23:24,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:24,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:24,927 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:24,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497271639] [2022-11-19 07:23:24,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497271639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:24,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:23:24,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:23:24,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983299624] [2022-11-19 07:23:24,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:24,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:23:24,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:24,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:23:24,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:23:24,931 INFO L87 Difference]: Start difference. First operand 231 states and 338 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:27,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:27,052 INFO L93 Difference]: Finished difference Result 450 states and 662 transitions. [2022-11-19 07:23:27,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:23:27,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:23:27,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:27,062 INFO L225 Difference]: With dead ends: 450 [2022-11-19 07:23:27,062 INFO L226 Difference]: Without dead ends: 239 [2022-11-19 07:23:27,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:23:27,065 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 21 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:27,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 997 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 07:23:27,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-11-19 07:23:27,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 233. [2022-11-19 07:23:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 197 states have (on average 1.50253807106599) internal successors, (296), 213 states have internal predecessors, (296), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:23:27,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 340 transitions. [2022-11-19 07:23:27,112 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 340 transitions. Word has length 28 [2022-11-19 07:23:27,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:27,112 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 340 transitions. [2022-11-19 07:23:27,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:27,113 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 340 transitions. [2022-11-19 07:23:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:23:27,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:27,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:27,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:27,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:27,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:27,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:27,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1646498398, now seen corresponding path program 1 times [2022-11-19 07:23:27,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:27,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243441902] [2022-11-19 07:23:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:27,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:27,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:27,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:27,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 07:23:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:28,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:23:28,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:28,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:28,308 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:28,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243441902] [2022-11-19 07:23:28,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243441902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:28,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:23:28,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:23:28,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176675820] [2022-11-19 07:23:28,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:28,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:23:28,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:28,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:23:28,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:23:28,319 INFO L87 Difference]: Start difference. First operand 233 states and 340 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:30,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:32,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:34,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:34,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:34,663 INFO L93 Difference]: Finished difference Result 453 states and 664 transitions. [2022-11-19 07:23:34,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:23:34,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-19 07:23:34,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:34,666 INFO L225 Difference]: With dead ends: 453 [2022-11-19 07:23:34,666 INFO L226 Difference]: Without dead ends: 230 [2022-11-19 07:23:34,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:23:34,668 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 9 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:34,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1659 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 07:23:34,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-19 07:23:34,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-11-19 07:23:34,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 194 states have (on average 1.5) internal successors, (291), 210 states have internal predecessors, (291), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:23:34,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 335 transitions. [2022-11-19 07:23:34,691 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 335 transitions. Word has length 28 [2022-11-19 07:23:34,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:34,691 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 335 transitions. [2022-11-19 07:23:34,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 335 transitions. [2022-11-19 07:23:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-19 07:23:34,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:34,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:34,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:34,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:34,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:34,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:34,907 INFO L85 PathProgramCache]: Analyzing trace with hash 806678510, now seen corresponding path program 1 times [2022-11-19 07:23:34,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:34,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201156098] [2022-11-19 07:23:34,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:34,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:34,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:34,910 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:34,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 07:23:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:35,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:23:35,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:35,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:35,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:35,995 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:35,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201156098] [2022-11-19 07:23:35,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201156098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:35,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:23:35,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:23:35,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133370248] [2022-11-19 07:23:35,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:35,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:23:35,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:35,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:23:35,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:23:35,998 INFO L87 Difference]: Start difference. First operand 230 states and 335 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:36,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:36,039 INFO L93 Difference]: Finished difference Result 447 states and 656 transitions. [2022-11-19 07:23:36,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:23:36,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-19 07:23:36,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:36,042 INFO L225 Difference]: With dead ends: 447 [2022-11-19 07:23:36,042 INFO L226 Difference]: Without dead ends: 231 [2022-11-19 07:23:36,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:23:36,044 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 0 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:36,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 666 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:23:36,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-19 07:23:36,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-11-19 07:23:36,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 195 states have (on average 1.4974358974358974) internal successors, (292), 211 states have internal predecessors, (292), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-19 07:23:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 336 transitions. [2022-11-19 07:23:36,061 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 336 transitions. Word has length 33 [2022-11-19 07:23:36,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:36,062 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 336 transitions. [2022-11-19 07:23:36,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:36,062 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 336 transitions. [2022-11-19 07:23:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 07:23:36,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:36,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:36,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:36,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:36,282 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:36,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:36,282 INFO L85 PathProgramCache]: Analyzing trace with hash -130899567, now seen corresponding path program 1 times [2022-11-19 07:23:36,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:36,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095658224] [2022-11-19 07:23:36,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:36,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:36,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:36,286 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:36,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 07:23:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:37,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:23:37,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:37,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:23:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:37,516 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:37,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095658224] [2022-11-19 07:23:37,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095658224] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:23:37,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1949926964] [2022-11-19 07:23:37,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:37,517 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:23:37,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:23:37,524 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:23:37,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-19 07:23:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:38,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:23:38,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:23:38,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:38,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1949926964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:38,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:23:38,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2022-11-19 07:23:38,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599098465] [2022-11-19 07:23:38,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:38,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:23:38,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:38,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:23:38,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:23:38,922 INFO L87 Difference]: Start difference. First operand 231 states and 336 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:40,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:41,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:41,344 INFO L93 Difference]: Finished difference Result 352 states and 502 transitions. [2022-11-19 07:23:41,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:23:41,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-19 07:23:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:41,348 INFO L225 Difference]: With dead ends: 352 [2022-11-19 07:23:41,348 INFO L226 Difference]: Without dead ends: 297 [2022-11-19 07:23:41,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:23:41,349 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 241 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:41,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 474 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 07:23:41,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-11-19 07:23:41,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 281. [2022-11-19 07:23:41,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 244 states have (on average 1.4262295081967213) internal successors, (348), 247 states have internal predecessors, (348), 26 states have call successors, (26), 11 states have call predecessors, (26), 10 states have return successors, (27), 25 states have call predecessors, (27), 18 states have call successors, (27) [2022-11-19 07:23:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 401 transitions. [2022-11-19 07:23:41,374 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 401 transitions. Word has length 34 [2022-11-19 07:23:41,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:41,375 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 401 transitions. [2022-11-19 07:23:41,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:41,375 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 401 transitions. [2022-11-19 07:23:41,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 07:23:41,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:41,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:41,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:41,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:41,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:41,794 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:41,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:41,794 INFO L85 PathProgramCache]: Analyzing trace with hash 865763652, now seen corresponding path program 1 times [2022-11-19 07:23:41,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:41,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462042666] [2022-11-19 07:23:41,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:41,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:41,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:41,797 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:41,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 07:23:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:42,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:23:42,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:43,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:23:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:43,117 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:43,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462042666] [2022-11-19 07:23:43,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462042666] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:23:43,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1119428475] [2022-11-19 07:23:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:43,118 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:23:43,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:23:43,127 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:23:43,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-19 07:23:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:44,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:23:44,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:44,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:23:44,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:44,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1119428475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:44,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:23:44,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2022-11-19 07:23:44,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481424611] [2022-11-19 07:23:44,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:44,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:23:44,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:44,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:23:44,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:23:44,635 INFO L87 Difference]: Start difference. First operand 281 states and 401 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:44,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:44,721 INFO L93 Difference]: Finished difference Result 437 states and 609 transitions. [2022-11-19 07:23:44,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:23:44,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-19 07:23:44,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:44,724 INFO L225 Difference]: With dead ends: 437 [2022-11-19 07:23:44,725 INFO L226 Difference]: Without dead ends: 338 [2022-11-19 07:23:44,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:23:44,726 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 278 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:44,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 423 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:23:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-11-19 07:23:44,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 315. [2022-11-19 07:23:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 280 states have (on average 1.4214285714285715) internal successors, (398), 281 states have internal predecessors, (398), 22 states have call successors, (22), 11 states have call predecessors, (22), 12 states have return successors, (26), 23 states have call predecessors, (26), 16 states have call successors, (26) [2022-11-19 07:23:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 446 transitions. [2022-11-19 07:23:44,757 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 446 transitions. Word has length 36 [2022-11-19 07:23:44,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:44,758 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 446 transitions. [2022-11-19 07:23:44,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:44,759 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 446 transitions. [2022-11-19 07:23:44,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-19 07:23:44,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:44,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:44,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:44,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:45,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:23:45,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:45,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:45,163 INFO L85 PathProgramCache]: Analyzing trace with hash 434300129, now seen corresponding path program 1 times [2022-11-19 07:23:45,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:45,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053452377] [2022-11-19 07:23:45,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:45,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:45,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:45,175 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:45,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-19 07:23:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:46,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:23:46,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:46,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:46,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:23:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:46,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:46,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053452377] [2022-11-19 07:23:46,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053452377] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:23:46,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1088181695] [2022-11-19 07:23:46,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:46,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:23:46,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:23:46,460 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:23:46,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-19 07:23:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:47,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:23:47,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:47,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:23:47,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:47,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1088181695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:47,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:23:47,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2022-11-19 07:23:47,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936643780] [2022-11-19 07:23:47,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:47,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:23:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:47,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:23:47,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:23:47,957 INFO L87 Difference]: Start difference. First operand 315 states and 446 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:48,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:48,036 INFO L93 Difference]: Finished difference Result 327 states and 461 transitions. [2022-11-19 07:23:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:23:48,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-19 07:23:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:48,039 INFO L225 Difference]: With dead ends: 327 [2022-11-19 07:23:48,040 INFO L226 Difference]: Without dead ends: 311 [2022-11-19 07:23:48,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:23:48,041 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 296 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:48,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 301 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:23:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-11-19 07:23:48,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 291. [2022-11-19 07:23:48,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 259 states have (on average 1.4401544401544402) internal successors, (373), 265 states have internal predecessors, (373), 21 states have call successors, (21), 11 states have call predecessors, (21), 10 states have return successors, (22), 15 states have call predecessors, (22), 16 states have call successors, (22) [2022-11-19 07:23:48,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 416 transitions. [2022-11-19 07:23:48,064 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 416 transitions. Word has length 38 [2022-11-19 07:23:48,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:48,065 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 416 transitions. [2022-11-19 07:23:48,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:48,065 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 416 transitions. [2022-11-19 07:23:48,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-19 07:23:48,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:48,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:48,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:48,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:48,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:48,480 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:48,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:48,480 INFO L85 PathProgramCache]: Analyzing trace with hash 586930743, now seen corresponding path program 1 times [2022-11-19 07:23:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:48,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673112777] [2022-11-19 07:23:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:48,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:48,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:48,482 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:48,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 07:23:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:49,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:23:49,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:49,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:49,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:23:49,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:49,867 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:49,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673112777] [2022-11-19 07:23:49,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673112777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:23:49,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [95787344] [2022-11-19 07:23:49,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:49,867 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:23:49,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:23:49,869 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:23:49,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-19 07:23:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:51,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:23:51,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:23:52,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:52,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [95787344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:52,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:23:52,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-11-19 07:23:52,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179006667] [2022-11-19 07:23:52,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:52,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:23:52,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:52,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:23:52,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:23:52,038 INFO L87 Difference]: Start difference. First operand 291 states and 416 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:54,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:23:54,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:54,776 INFO L93 Difference]: Finished difference Result 328 states and 456 transitions. [2022-11-19 07:23:54,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:23:54,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-11-19 07:23:54,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:54,779 INFO L225 Difference]: With dead ends: 328 [2022-11-19 07:23:54,780 INFO L226 Difference]: Without dead ends: 287 [2022-11-19 07:23:54,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:23:54,781 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 500 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:54,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 391 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 100 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 07:23:54,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-11-19 07:23:54,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 284. [2022-11-19 07:23:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 253 states have (on average 1.4308300395256917) internal successors, (362), 258 states have internal predecessors, (362), 21 states have call successors, (21), 11 states have call predecessors, (21), 9 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-19 07:23:54,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 401 transitions. [2022-11-19 07:23:54,820 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 401 transitions. Word has length 39 [2022-11-19 07:23:54,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:54,820 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 401 transitions. [2022-11-19 07:23:54,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:54,821 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 401 transitions. [2022-11-19 07:23:54,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 07:23:54,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:54,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:23:54,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:55,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:55,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:23:55,236 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:23:55,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:55,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1425084069, now seen corresponding path program 1 times [2022-11-19 07:23:55,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:23:55,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225721944] [2022-11-19 07:23:55,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:55,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:23:55,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:23:55,240 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:23:55,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-19 07:23:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:56,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:23:56,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:56,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:23:56,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:56,791 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:23:56,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225721944] [2022-11-19 07:23:56,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225721944] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:23:56,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [294274306] [2022-11-19 07:23:56,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:56,792 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:23:56,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:23:56,795 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:23:56,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-19 07:23:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:58,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:23:58,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:58,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:23:58,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:23:58,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [294274306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:58,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:23:58,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2022-11-19 07:23:58,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415253543] [2022-11-19 07:23:58,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:58,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:23:58,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:23:58,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:23:58,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:23:58,799 INFO L87 Difference]: Start difference. First operand 284 states and 401 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:24:00,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:01,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:24:01,089 INFO L93 Difference]: Finished difference Result 287 states and 403 transitions. [2022-11-19 07:24:01,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:24:01,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-11-19 07:24:01,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:24:01,093 INFO L225 Difference]: With dead ends: 287 [2022-11-19 07:24:01,093 INFO L226 Difference]: Without dead ends: 283 [2022-11-19 07:24:01,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:24:01,094 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 26 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:24:01,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 517 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 07:24:01,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-11-19 07:24:01,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-11-19 07:24:01,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 253 states have (on average 1.4229249011857708) internal successors, (360), 257 states have internal predecessors, (360), 20 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-19 07:24:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 398 transitions. [2022-11-19 07:24:01,146 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 398 transitions. Word has length 40 [2022-11-19 07:24:01,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:01,146 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 398 transitions. [2022-11-19 07:24:01,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:24:01,146 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 398 transitions. [2022-11-19 07:24:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-19 07:24:01,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:01,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:24:01,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:01,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:01,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:01,549 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:01,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:01,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1876518501, now seen corresponding path program 1 times [2022-11-19 07:24:01,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:24:01,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243633184] [2022-11-19 07:24:01,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:01,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:24:01,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:24:01,552 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:24:01,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-19 07:24:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:02,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:03,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:03,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:03,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:24:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:03,206 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:24:03,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243633184] [2022-11-19 07:24:03,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243633184] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:24:03,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1427475547] [2022-11-19 07:24:03,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:03,207 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:03,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:24:03,211 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:24:03,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-19 07:24:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:05,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:05,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:24:05,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:24:05,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1427475547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:05,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:24:05,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-11-19 07:24:05,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442589684] [2022-11-19 07:24:05,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:05,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:24:05,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:24:05,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:24:05,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:24:05,865 INFO L87 Difference]: Start difference. First operand 283 states and 398 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:24:07,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:08,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:24:08,431 INFO L93 Difference]: Finished difference Result 318 states and 440 transitions. [2022-11-19 07:24:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:24:08,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-11-19 07:24:08,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:24:08,434 INFO L225 Difference]: With dead ends: 318 [2022-11-19 07:24:08,434 INFO L226 Difference]: Without dead ends: 283 [2022-11-19 07:24:08,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:24:08,436 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 297 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:24:08,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 476 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 85 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:24:08,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-11-19 07:24:08,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-11-19 07:24:08,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 253 states have (on average 1.4150197628458498) internal successors, (358), 257 states have internal predecessors, (358), 20 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-19 07:24:08,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 396 transitions. [2022-11-19 07:24:08,488 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 396 transitions. Word has length 50 [2022-11-19 07:24:08,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:08,488 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 396 transitions. [2022-11-19 07:24:08,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:24:08,489 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 396 transitions. [2022-11-19 07:24:08,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-19 07:24:08,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:08,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:24:08,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:08,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:08,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:08,903 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:08,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:08,904 INFO L85 PathProgramCache]: Analyzing trace with hash -819982396, now seen corresponding path program 1 times [2022-11-19 07:24:08,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:24:08,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297434626] [2022-11-19 07:24:08,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:08,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:24:08,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:24:08,907 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:24:08,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-19 07:24:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:10,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:10,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:10,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:10,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:24:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:10,492 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:24:10,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297434626] [2022-11-19 07:24:10,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297434626] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:24:10,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [519275903] [2022-11-19 07:24:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:10,493 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:10,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:24:10,494 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:24:10,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-19 07:24:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:12,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:12,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:24:13,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:24:13,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [519275903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:13,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:24:13,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-11-19 07:24:13,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461175730] [2022-11-19 07:24:13,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:13,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:24:13,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:24:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:24:13,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:24:13,395 INFO L87 Difference]: Start difference. First operand 283 states and 396 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:24:15,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:15,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:24:15,977 INFO L93 Difference]: Finished difference Result 343 states and 472 transitions. [2022-11-19 07:24:15,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:24:15,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-11-19 07:24:15,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:24:15,981 INFO L225 Difference]: With dead ends: 343 [2022-11-19 07:24:15,981 INFO L226 Difference]: Without dead ends: 304 [2022-11-19 07:24:15,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:24:15,982 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 296 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:24:15,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 564 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 86 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:24:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-11-19 07:24:16,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 281. [2022-11-19 07:24:16,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 251 states have (on average 1.406374501992032) internal successors, (353), 255 states have internal predecessors, (353), 20 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-19 07:24:16,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 391 transitions. [2022-11-19 07:24:16,026 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 391 transitions. Word has length 51 [2022-11-19 07:24:16,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:16,026 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 391 transitions. [2022-11-19 07:24:16,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:24:16,027 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 391 transitions. [2022-11-19 07:24:16,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-19 07:24:16,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:16,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:24:16,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:16,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:16,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:24:16,447 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:16,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:16,448 INFO L85 PathProgramCache]: Analyzing trace with hash 939084857, now seen corresponding path program 1 times [2022-11-19 07:24:16,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:24:16,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999532846] [2022-11-19 07:24:16,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:16,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:24:16,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:24:16,449 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:24:16,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-19 07:24:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:17,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:17,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:17,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:17,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:24:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:18,060 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:24:18,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999532846] [2022-11-19 07:24:18,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999532846] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:24:18,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [875209992] [2022-11-19 07:24:18,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:18,060 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:18,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:24:18,062 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:24:18,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-19 07:24:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:20,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:24:20,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:24:20,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:24:20,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [875209992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:20,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:24:20,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2022-11-19 07:24:20,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822632414] [2022-11-19 07:24:20,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:20,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:24:20,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:24:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:24:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:24:20,390 INFO L87 Difference]: Start difference. First operand 281 states and 391 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:24:20,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:24:20,619 INFO L93 Difference]: Finished difference Result 315 states and 441 transitions. [2022-11-19 07:24:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:24:20,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-11-19 07:24:20,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:24:20,621 INFO L225 Difference]: With dead ends: 315 [2022-11-19 07:24:20,622 INFO L226 Difference]: Without dead ends: 312 [2022-11-19 07:24:20,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:24:20,623 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 20 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:24:20,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 554 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:24:20,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-19 07:24:20,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 287. [2022-11-19 07:24:20,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 257 states have (on average 1.4085603112840468) internal successors, (362), 261 states have internal predecessors, (362), 20 states have call successors, (20), 11 states have call predecessors, (20), 9 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-19 07:24:20,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 400 transitions. [2022-11-19 07:24:20,687 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 400 transitions. Word has length 51 [2022-11-19 07:24:20,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:20,688 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 400 transitions. [2022-11-19 07:24:20,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:24:20,688 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 400 transitions. [2022-11-19 07:24:20,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 07:24:20,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:20,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:24:20,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:20,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:21,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:21,111 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:21,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:21,112 INFO L85 PathProgramCache]: Analyzing trace with hash 349220404, now seen corresponding path program 1 times [2022-11-19 07:24:21,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:24:21,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635865353] [2022-11-19 07:24:21,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:21,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:24:21,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:24:21,114 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:24:21,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-19 07:24:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:22,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:22,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:22,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:22,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:24:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:22,805 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:24:22,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635865353] [2022-11-19 07:24:22,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635865353] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:24:22,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [712180604] [2022-11-19 07:24:22,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:22,806 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:22,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:24:22,808 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:24:22,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-11-19 07:24:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:25,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:25,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:26,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:24:26,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:24:26,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [712180604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:26,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:24:26,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-11-19 07:24:26,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783966257] [2022-11-19 07:24:26,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:26,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:24:26,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:24:26,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:24:26,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:24:26,014 INFO L87 Difference]: Start difference. First operand 287 states and 400 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:24:28,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:28,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:24:28,513 INFO L93 Difference]: Finished difference Result 321 states and 442 transitions. [2022-11-19 07:24:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:24:28,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-11-19 07:24:28,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:24:28,516 INFO L225 Difference]: With dead ends: 321 [2022-11-19 07:24:28,516 INFO L226 Difference]: Without dead ends: 315 [2022-11-19 07:24:28,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:24:28,518 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 288 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:24:28,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 511 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 07:24:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-11-19 07:24:28,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 290. [2022-11-19 07:24:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 259 states have (on average 1.4015444015444016) internal successors, (363), 264 states have internal predecessors, (363), 20 states have call successors, (20), 11 states have call predecessors, (20), 10 states have return successors, (18), 15 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-19 07:24:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 401 transitions. [2022-11-19 07:24:28,557 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 401 transitions. Word has length 52 [2022-11-19 07:24:28,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:28,558 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 401 transitions. [2022-11-19 07:24:28,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:24:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 401 transitions. [2022-11-19 07:24:28,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-19 07:24:28,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:28,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:24:28,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:28,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:28,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:28,972 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:28,972 INFO L85 PathProgramCache]: Analyzing trace with hash 664617645, now seen corresponding path program 1 times [2022-11-19 07:24:28,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:24:28,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077796965] [2022-11-19 07:24:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:28,973 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:24:28,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:24:28,974 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:24:28,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-19 07:24:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:30,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:30,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:30,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:30,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:24:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:30,840 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:24:30,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077796965] [2022-11-19 07:24:30,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077796965] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:24:30,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1398354319] [2022-11-19 07:24:30,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:30,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:30,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:24:30,843 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:24:30,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-11-19 07:24:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:33,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:24:33,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:24:33,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:24:33,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1398354319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:33,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:24:33,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2022-11-19 07:24:33,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70951257] [2022-11-19 07:24:33,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:33,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:24:33,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:24:33,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:24:33,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:24:33,527 INFO L87 Difference]: Start difference. First operand 290 states and 401 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:24:35,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:24:35,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:24:35,624 INFO L93 Difference]: Finished difference Result 328 states and 438 transitions. [2022-11-19 07:24:35,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:24:35,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-19 07:24:35,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:24:35,629 INFO L225 Difference]: With dead ends: 328 [2022-11-19 07:24:35,629 INFO L226 Difference]: Without dead ends: 271 [2022-11-19 07:24:35,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:24:35,631 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 77 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:24:35,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 554 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 07:24:35,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-19 07:24:35,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 255. [2022-11-19 07:24:35,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 227 states have (on average 1.3876651982378854) internal successors, (315), 231 states have internal predecessors, (315), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2022-11-19 07:24:35,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 348 transitions. [2022-11-19 07:24:35,672 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 348 transitions. Word has length 53 [2022-11-19 07:24:35,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:24:35,672 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 348 transitions. [2022-11-19 07:24:35,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:24:35,672 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 348 transitions. [2022-11-19 07:24:35,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-19 07:24:35,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:24:35,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:24:35,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:35,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-19 07:24:36,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:24:36,091 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:24:36,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:24:36,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1116031123, now seen corresponding path program 1 times [2022-11-19 07:24:36,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:24:36,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973784901] [2022-11-19 07:24:36,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:36,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:24:36,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:24:36,094 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:24:36,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-19 07:24:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:37,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:37,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:37,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:37,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:24:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:37,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:24:37,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973784901] [2022-11-19 07:24:37,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973784901] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:24:37,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1983184008] [2022-11-19 07:24:37,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:37,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:24:37,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:24:37,950 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:24:37,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1583fe8e-47dd-4eb6-9498-307828d73e51/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2022-11-19 07:24:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:40,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:24:40,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:40,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:24:40,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:24:40,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1983184008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:24:40,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:24:40,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4] total 9 [2022-11-19 07:24:40,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039908268] [2022-11-19 07:24:40,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:24:40,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:24:40,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:24:40,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:24:40,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:24:40,792 INFO L87 Difference]: Start difference. First operand 255 states and 348 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 07:24:42,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []