./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:31:20,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:31:20,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:31:20,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:31:20,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:31:20,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:31:20,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:31:20,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:31:20,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:31:20,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:31:20,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:31:20,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:31:20,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:31:20,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:31:20,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:31:20,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:31:20,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:31:20,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:31:20,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:31:20,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:31:20,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:31:20,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:31:20,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:31:20,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:31:20,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:31:20,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:31:20,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:31:20,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:31:20,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:31:20,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:31:20,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:31:20,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:31:20,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:31:20,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:31:20,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:31:20,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:31:20,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:31:20,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:31:20,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:31:20,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:31:20,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:31:20,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:31:20,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:31:20,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:31:20,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:31:20,700 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:31:20,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:31:20,700 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:31:20,700 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:31:20,700 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:31:20,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:31:20,701 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:31:20,701 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:31:20,701 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:31:20,702 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:31:20,702 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:31:20,702 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:31:20,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:31:20,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:31:20,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:31:20,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:31:20,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:31:20,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:31:20,704 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:31:20,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:31:20,705 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:31:20,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:31:20,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:31:20,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:31:20,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:31:20,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:31:20,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:31:20,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:31:20,706 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:31:20,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:31:20,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:31:20,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:31:20,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:31:20,708 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 [2021-11-07 01:31:20,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:31:20,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:31:20,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:31:20,995 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:31:20,997 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:31:20,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 01:31:21,068 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data/aa3e57277/d9390e0c75b24fd7be747405cacee7c2/FLAGba2b38b94 [2021-11-07 01:31:21,984 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:31:21,984 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 01:31:22,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data/aa3e57277/d9390e0c75b24fd7be747405cacee7c2/FLAGba2b38b94 [2021-11-07 01:31:22,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data/aa3e57277/d9390e0c75b24fd7be747405cacee7c2 [2021-11-07 01:31:22,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:31:22,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:31:22,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:31:22,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:31:22,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:31:22,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:22" (1/1) ... [2021-11-07 01:31:22,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6dfc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:22, skipping insertion in model container [2021-11-07 01:31:22,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:22" (1/1) ... [2021-11-07 01:31:22,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:31:22,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:31:23,897 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:23,902 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,041 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,049 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,067 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,075 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,221 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,285 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,343 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,360 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,368 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,372 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,378 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,393 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,425 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,439 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,451 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,460 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,465 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,519 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,522 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,548 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,549 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,549 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,550 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,572 WARN L228 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_d0c8c6f3-6197-4417-b75a-7533371ac089/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-11-07 01:31:24,581 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,597 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:31:24,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:31:24,666 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:31:24,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@cd874ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:24, skipping insertion in model container [2021-11-07 01:31:24,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:31:24,667 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:31:24,670 INFO L168 Benchmark]: Toolchain (without parser) took 2245.77 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 72.2 MB in the beginning and 100.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:31:24,670 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 121.6 MB. Free memory is still 100.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:31:24,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2243.31 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 72.0 MB in the beginning and 100.4 MB in the end (delta: -28.4 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:31:24,674 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 121.6 MB. Free memory is still 100.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2243.31 ms. Allocated memory was 121.6 MB in the beginning and 172.0 MB in the end (delta: 50.3 MB). Free memory was 72.0 MB in the beginning and 100.4 MB in the end (delta: -28.4 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4455]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:31:26,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:31:26,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:31:27,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:31:27,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:31:27,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:31:27,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:31:27,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:31:27,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:31:27,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:31:27,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:31:27,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:31:27,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:31:27,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:31:27,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:31:27,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:31:27,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:31:27,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:31:27,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:31:27,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:31:27,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:31:27,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:31:27,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:31:27,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:31:27,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:31:27,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:31:27,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:31:27,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:31:27,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:31:27,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:31:27,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:31:27,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:31:27,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:31:27,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:31:27,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:31:27,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:31:27,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:31:27,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:31:27,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:31:27,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:31:27,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:31:27,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:31:27,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:31:27,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:31:27,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:31:27,170 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:31:27,170 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:31:27,171 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:31:27,171 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:31:27,171 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:31:27,171 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:31:27,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:31:27,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:31:27,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:31:27,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:31:27,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:31:27,175 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:31:27,175 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:31:27,175 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:31:27,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:31:27,176 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:31:27,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:31:27,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:31:27,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:31:27,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:31:27,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:31:27,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:31:27,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:31:27,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:31:27,178 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:31:27,178 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:31:27,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:31:27,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:31:27,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:31:27,179 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_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 [2021-11-07 01:31:27,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:31:27,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:31:27,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:31:27,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:31:27,608 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:31:27,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 01:31:27,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data/07183ddf8/70f8a53303d8441aaa2ffc9ce5dfbf34/FLAG6f93c6548 [2021-11-07 01:31:28,662 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:31:28,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 01:31:28,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data/07183ddf8/70f8a53303d8441aaa2ffc9ce5dfbf34/FLAG6f93c6548 [2021-11-07 01:31:29,107 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/data/07183ddf8/70f8a53303d8441aaa2ffc9ce5dfbf34 [2021-11-07 01:31:29,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:31:29,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:31:29,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:31:29,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:31:29,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:31:29,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:29" (1/1) ... [2021-11-07 01:31:29,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b043407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:29, skipping insertion in model container [2021-11-07 01:31:29,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:29" (1/1) ... [2021-11-07 01:31:29,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:31:29,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:31:31,216 WARN L228 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_d0c8c6f3-6197-4417-b75a-7533371ac089/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-11-07 01:31:31,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:31:31,302 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:31:31,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:31:31,762 WARN L228 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_d0c8c6f3-6197-4417-b75a-7533371ac089/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-11-07 01:31:31,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:31:31,800 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:31:32,216 WARN L228 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_d0c8c6f3-6197-4417-b75a-7533371ac089/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2021-11-07 01:31:32,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:31:32,447 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:31:32,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32 WrapperNode [2021-11-07 01:31:32,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:31:32,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:31:32,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:31:32,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:31:32,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:32,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:34,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:31:34,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:31:34,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:31:34,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:31:34,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:34,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:35,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:35,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:36,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:36,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:36,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:36,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:31:36,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:31:36,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:31:36,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:31:36,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (1/1) ... [2021-11-07 01:31:36,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:31:36,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:31:36,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:31:36,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:31:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:31:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:31:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:31:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:31:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:31:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:31:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-11-07 01:31:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-11-07 01:31:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-07 01:31:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-07 01:31:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-11-07 01:31:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-11-07 01:31:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-11-07 01:31:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-11-07 01:31:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2021-11-07 01:31:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2021-11-07 01:31:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:31:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2021-11-07 01:31:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2021-11-07 01:31:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:31:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2021-11-07 01:31:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2021-11-07 01:31:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-11-07 01:31:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-11-07 01:31:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2021-11-07 01:31:37,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2021-11-07 01:31:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:31:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:31:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:31:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:31:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:31:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:31:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 01:31:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:31:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:31:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:31:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-11-07 01:31:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-11-07 01:31:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-11-07 01:31:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-11-07 01:31:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-11-07 01:31:37,039 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-11-07 01:31:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-11-07 01:31:37,039 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-11-07 01:31:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-11-07 01:31:37,040 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-11-07 01:31:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:31:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:31:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:31:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:31:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2021-11-07 01:31:37,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2021-11-07 01:31:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:31:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:31:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:31:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-07 01:31:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-07 01:31:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:31:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 01:31:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 01:31:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:31:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-11-07 01:31:37,045 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-11-07 01:31:37,045 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-11-07 01:31:37,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-11-07 01:31:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-11-07 01:31:37,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-11-07 01:31:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:31:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 01:31:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:31:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:35:16,184 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:35:16,185 INFO L299 CfgBuilder]: Removed 12856 assume(true) statements. [2021-11-07 01:35:16,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:16 BoogieIcfgContainer [2021-11-07 01:35:16,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:35:16,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:35:16,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:35:16,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:35:16,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:31:29" (1/3) ... [2021-11-07 01:35:16,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7451fa2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:16, skipping insertion in model container [2021-11-07 01:35:16,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:32" (2/3) ... [2021-11-07 01:35:16,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7451fa2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:16, skipping insertion in model container [2021-11-07 01:35:16,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:16" (3/3) ... [2021-11-07 01:35:16,206 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-07 01:35:16,213 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:35:16,213 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 01:35:16,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:35:16,316 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:35:16,317 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 01:35:16,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 9833 states, 9767 states have (on average 1.4638066960172007) internal successors, (14297), 9777 states have internal predecessors, (14297), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-07 01:35:16,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 01:35:16,519 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:16,520 INFO L513 BasicCegarLoop]: 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] [2021-11-07 01:35:16,520 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:35:16,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:16,530 INFO L85 PathProgramCache]: Analyzing trace with hash -115850382, now seen corresponding path program 1 times [2021-11-07 01:35:16,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:16,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629350661] [2021-11-07 01:35:16,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:16,553 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:16,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:16,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:16,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:35:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:18,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:35:18,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:18,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:19,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:19,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629350661] [2021-11-07 01:35:19,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629350661] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:19,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:19,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:35:19,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374041251] [2021-11-07 01:35:19,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:35:19,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:19,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:35:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:35:19,185 INFO L87 Difference]: Start difference. First operand has 9833 states, 9767 states have (on average 1.4638066960172007) internal successors, (14297), 9777 states have internal predecessors, (14297), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:19,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:19,655 INFO L93 Difference]: Finished difference Result 19662 states and 28781 transitions. [2021-11-07 01:35:19,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:35:19,657 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-07 01:35:19,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:19,756 INFO L225 Difference]: With dead ends: 19662 [2021-11-07 01:35:19,756 INFO L226 Difference]: Without dead ends: 9820 [2021-11-07 01:35:19,792 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:35:19,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9820 states. [2021-11-07 01:35:20,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9820 to 9820. [2021-11-07 01:35:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9820 states, 9755 states have (on average 1.46099436186571) internal successors, (14252), 9764 states have internal predecessors, (14252), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-07 01:35:20,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9820 states to 9820 states and 14332 transitions. [2021-11-07 01:35:20,220 INFO L78 Accepts]: Start accepts. Automaton has 9820 states and 14332 transitions. Word has length 48 [2021-11-07 01:35:20,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:20,220 INFO L470 AbstractCegarLoop]: Abstraction has 9820 states and 14332 transitions. [2021-11-07 01:35:20,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 9820 states and 14332 transitions. [2021-11-07 01:35:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 01:35:20,225 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:20,225 INFO L513 BasicCegarLoop]: 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] [2021-11-07 01:35:20,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:20,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:20,442 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:35:20,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:20,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1788427642, now seen corresponding path program 1 times [2021-11-07 01:35:20,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:20,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784540628] [2021-11-07 01:35:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:20,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:20,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:20,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:20,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:35:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:22,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:35:22,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:22,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:35:23,103 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:23,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784540628] [2021-11-07 01:35:23,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784540628] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:23,104 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:35:23,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:35:23,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472520837] [2021-11-07 01:35:23,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:35:23,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:23,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:35:23,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:35:23,107 INFO L87 Difference]: Start difference. First operand 9820 states and 14332 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:23,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:23,682 INFO L93 Difference]: Finished difference Result 19624 states and 28651 transitions. [2021-11-07 01:35:23,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:35:23,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-07 01:35:23,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:23,747 INFO L225 Difference]: With dead ends: 19624 [2021-11-07 01:35:23,747 INFO L226 Difference]: Without dead ends: 9824 [2021-11-07 01:35:23,769 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:35:23,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9824 states. [2021-11-07 01:35:24,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9824 to 9824. [2021-11-07 01:35:24,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9824 states, 9759 states have (on average 1.460805410390409) internal successors, (14256), 9768 states have internal predecessors, (14256), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-07 01:35:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9824 states to 9824 states and 14336 transitions. [2021-11-07 01:35:24,077 INFO L78 Accepts]: Start accepts. Automaton has 9824 states and 14336 transitions. Word has length 48 [2021-11-07 01:35:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:24,078 INFO L470 AbstractCegarLoop]: Abstraction has 9824 states and 14336 transitions. [2021-11-07 01:35:24,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 9824 states and 14336 transitions. [2021-11-07 01:35:24,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 01:35:24,082 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:24,082 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:24,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:24,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:24,307 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:35:24,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:24,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1504583750, now seen corresponding path program 1 times [2021-11-07 01:35:24,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:24,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66444761] [2021-11-07 01:35:24,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:24,311 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:24,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:24,312 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:24,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:35:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:25,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:35:25,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:26,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:35:26,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:35:27,315 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:35:27,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66444761] [2021-11-07 01:35:27,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66444761] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:35:27,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [709315987] [2021-11-07 01:35:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:27,316 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:35:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:35:27,329 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:35:27,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-07 01:35:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:28,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:35:28,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:31,103 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:35:31,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:35:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:35:32,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [709315987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:35:32,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:35:32,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 10 [2021-11-07 01:35:32,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447179606] [2021-11-07 01:35:32,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:35:32,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:35:32,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:35:32,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:35:32,292 INFO L87 Difference]: Start difference. First operand 9824 states and 14336 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:58,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:35:58,338 INFO L93 Difference]: Finished difference Result 29406 states and 43091 transitions. [2021-11-07 01:35:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:35:58,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-07 01:35:58,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:35:58,487 INFO L225 Difference]: With dead ends: 29406 [2021-11-07 01:35:58,487 INFO L226 Difference]: Without dead ends: 19614 [2021-11-07 01:35:58,515 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:35:58,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19614 states. [2021-11-07 01:35:59,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19614 to 19602. [2021-11-07 01:35:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19602 states, 19477 states have (on average 1.4277352775068028) internal successors, (27808), 19491 states have internal predecessors, (27808), 80 states have call successors, (80), 40 states have call predecessors, (80), 40 states have return successors, (152), 74 states have call predecessors, (152), 80 states have call successors, (152) [2021-11-07 01:35:59,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19602 states to 19602 states and 28040 transitions. [2021-11-07 01:35:59,261 INFO L78 Accepts]: Start accepts. Automaton has 19602 states and 28040 transitions. Word has length 52 [2021-11-07 01:35:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:35:59,263 INFO L470 AbstractCegarLoop]: Abstraction has 19602 states and 28040 transitions. [2021-11-07 01:35:59,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:35:59,264 INFO L276 IsEmpty]: Start isEmpty. Operand 19602 states and 28040 transitions. [2021-11-07 01:35:59,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 01:35:59,271 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:35:59,272 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:35:59,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:59,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:35:59,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:35:59,688 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:35:59,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:35:59,688 INFO L85 PathProgramCache]: Analyzing trace with hash 602587552, now seen corresponding path program 1 times [2021-11-07 01:35:59,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:35:59,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131081233] [2021-11-07 01:35:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:35:59,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:35:59,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:35:59,693 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:35:59,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:36:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:36:01,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:36:01,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:36:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:36:01,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:36:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:36:02,622 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:36:02,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131081233] [2021-11-07 01:36:02,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131081233] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:36:02,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1431923113] [2021-11-07 01:36:02,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:36:02,622 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:36:02,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:36:02,625 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:36:02,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 01:36:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:36:04,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:36:04,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:36:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:36:06,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:36:07,217 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:36:07,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1431923113] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:36:07,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:36:07,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 10 [2021-11-07 01:36:07,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447688841] [2021-11-07 01:36:07,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:36:07,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:36:07,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:36:07,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:36:07,220 INFO L87 Difference]: Start difference. First operand 19602 states and 28040 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:48,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:48,166 INFO L93 Difference]: Finished difference Result 76983 states and 110026 transitions. [2021-11-07 01:41:48,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:41:48,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-07 01:41:48,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:48,534 INFO L225 Difference]: With dead ends: 76983 [2021-11-07 01:41:48,535 INFO L226 Difference]: Without dead ends: 57413 [2021-11-07 01:41:48,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:41:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57413 states. [2021-11-07 01:41:50,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57413 to 47337. [2021-11-07 01:41:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47337 states, 46972 states have (on average 1.3972579409009622) internal successors, (65632), 47006 states have internal predecessors, (65632), 240 states have call successors, (240), 120 states have call predecessors, (240), 120 states have return successors, (608), 222 states have call predecessors, (608), 240 states have call successors, (608) [2021-11-07 01:41:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47337 states to 47337 states and 66480 transitions. [2021-11-07 01:41:51,051 INFO L78 Accepts]: Start accepts. Automaton has 47337 states and 66480 transitions. Word has length 53 [2021-11-07 01:41:51,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:51,053 INFO L470 AbstractCegarLoop]: Abstraction has 47337 states and 66480 transitions. [2021-11-07 01:41:51,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:51,053 INFO L276 IsEmpty]: Start isEmpty. Operand 47337 states and 66480 transitions. [2021-11-07 01:41:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 01:41:51,056 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:51,057 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:51,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:51,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:51,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:41:51,482 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:41:51,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:51,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1500388484, now seen corresponding path program 1 times [2021-11-07 01:41:51,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:51,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708215121] [2021-11-07 01:41:51,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:51,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:51,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:51,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:51,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:41:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:53,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:41:53,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:41:53,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:41:54,538 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:54,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708215121] [2021-11-07 01:41:54,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708215121] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:41:54,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1767006389] [2021-11-07 01:41:54,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:54,539 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:41:54,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:41:54,540 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:41:54,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 01:41:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:56,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:41:56,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:57,031 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:41:57,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:41:57,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1767006389] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:57,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:41:57,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 01:41:57,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714851024] [2021-11-07 01:41:57,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:41:57,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:57,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:41:57,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:41:57,887 INFO L87 Difference]: Start difference. First operand 47337 states and 66480 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:11,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:11,137 INFO L93 Difference]: Finished difference Result 57405 states and 80244 transitions. [2021-11-07 01:42:11,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:42:11,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 01:42:11,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:11,378 INFO L225 Difference]: With dead ends: 57405 [2021-11-07 01:42:11,379 INFO L226 Difference]: Without dead ends: 57403 [2021-11-07 01:42:11,401 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:42:11,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57403 states. [2021-11-07 01:42:13,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57403 to 57401. [2021-11-07 01:42:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57401 states, 57036 states have (on average 1.3919805035416228) internal successors, (79393), 57070 states have internal predecessors, (79393), 240 states have call successors, (240), 120 states have call predecessors, (240), 120 states have return successors, (608), 222 states have call predecessors, (608), 240 states have call successors, (608) [2021-11-07 01:42:14,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57401 states to 57401 states and 80241 transitions. [2021-11-07 01:42:14,016 INFO L78 Accepts]: Start accepts. Automaton has 57401 states and 80241 transitions. Word has length 54 [2021-11-07 01:42:14,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:14,023 INFO L470 AbstractCegarLoop]: Abstraction has 57401 states and 80241 transitions. [2021-11-07 01:42:14,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:14,023 INFO L276 IsEmpty]: Start isEmpty. Operand 57401 states and 80241 transitions. [2021-11-07 01:42:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 01:42:14,028 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:14,029 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:14,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:14,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:14,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:14,446 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:42:14,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:14,446 INFO L85 PathProgramCache]: Analyzing trace with hash -732553686, now seen corresponding path program 1 times [2021-11-07 01:42:14,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:14,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854191840] [2021-11-07 01:42:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:14,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:14,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:14,456 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:14,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:42:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:16,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:42:16,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:42:17,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:42:18,058 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:18,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854191840] [2021-11-07 01:42:18,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854191840] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:18,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [61119049] [2021-11-07 01:42:18,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:18,059 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:18,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:42:18,061 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:42:18,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-07 01:42:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:19,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:42:19,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:42:20,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:21,503 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:42:21,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [61119049] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:21,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:42:21,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 01:42:21,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070379957] [2021-11-07 01:42:21,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:42:21,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:21,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:42:21,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:42:21,506 INFO L87 Difference]: Start difference. First operand 57401 states and 80241 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:23,168 INFO L93 Difference]: Finished difference Result 57401 states and 80241 transitions. [2021-11-07 01:42:23,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:42:23,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-07 01:42:23,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:23,366 INFO L225 Difference]: With dead ends: 57401 [2021-11-07 01:42:23,366 INFO L226 Difference]: Without dead ends: 57399 [2021-11-07 01:42:23,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:42:23,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57399 states. [2021-11-07 01:42:25,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57399 to 57399. [2021-11-07 01:42:25,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57399 states, 57035 states have (on average 1.3919698430788112) internal successors, (79391), 57068 states have internal predecessors, (79391), 240 states have call successors, (240), 120 states have call predecessors, (240), 120 states have return successors, (608), 222 states have call predecessors, (608), 240 states have call successors, (608) [2021-11-07 01:42:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57399 states to 57399 states and 80239 transitions. [2021-11-07 01:42:26,144 INFO L78 Accepts]: Start accepts. Automaton has 57399 states and 80239 transitions. Word has length 55 [2021-11-07 01:42:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:26,145 INFO L470 AbstractCegarLoop]: Abstraction has 57399 states and 80239 transitions. [2021-11-07 01:42:26,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 57399 states and 80239 transitions. [2021-11-07 01:42:26,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 01:42:26,157 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:26,158 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:26,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:26,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:26,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:26,578 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:42:26,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:26,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1234284210, now seen corresponding path program 1 times [2021-11-07 01:42:26,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:26,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718008850] [2021-11-07 01:42:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:26,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:26,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:26,747 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:26,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:42:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:28,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:42:28,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:29,112 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:42:29,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:29,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:42:29,980 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:29,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718008850] [2021-11-07 01:42:29,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718008850] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:29,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [162361791] [2021-11-07 01:42:29,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:29,981 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:29,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:42:29,982 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:42:29,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-07 01:42:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:31,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:42:31,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:32,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:42:32,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:42:33,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [162361791] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:33,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:42:33,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 01:42:33,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942454374] [2021-11-07 01:42:33,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:42:33,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:33,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:42:33,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:42:33,679 INFO L87 Difference]: Start difference. First operand 57399 states and 80239 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:35,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:35,303 INFO L93 Difference]: Finished difference Result 57399 states and 80239 transitions. [2021-11-07 01:42:35,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:42:35,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-07 01:42:35,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:35,464 INFO L225 Difference]: With dead ends: 57399 [2021-11-07 01:42:35,464 INFO L226 Difference]: Without dead ends: 52362 [2021-11-07 01:42:35,489 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:42:35,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52362 states. [2021-11-07 01:42:37,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52362 to 52362. [2021-11-07 01:42:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52362 states, 51999 states have (on average 1.386930517894575) internal successors, (72119), 52031 states have internal predecessors, (72119), 240 states have call successors, (240), 120 states have call predecessors, (240), 120 states have return successors, (608), 222 states have call predecessors, (608), 240 states have call successors, (608) [2021-11-07 01:42:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52362 states to 52362 states and 72967 transitions. [2021-11-07 01:42:37,897 INFO L78 Accepts]: Start accepts. Automaton has 52362 states and 72967 transitions. Word has length 56 [2021-11-07 01:42:37,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:37,897 INFO L470 AbstractCegarLoop]: Abstraction has 52362 states and 72967 transitions. [2021-11-07 01:42:37,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:37,898 INFO L276 IsEmpty]: Start isEmpty. Operand 52362 states and 72967 transitions. [2021-11-07 01:42:37,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 01:42:37,925 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:37,925 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:37,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:38,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:42:38,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:38,346 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:42:38,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:38,347 INFO L85 PathProgramCache]: Analyzing trace with hash 816656882, now seen corresponding path program 1 times [2021-11-07 01:42:38,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:38,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131147888] [2021-11-07 01:42:38,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:38,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:38,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:38,349 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:38,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:42:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:40,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:42:40,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:42:41,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:42,466 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:42:42,466 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:42,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131147888] [2021-11-07 01:42:42,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131147888] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:42,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1050204367] [2021-11-07 01:42:42,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:42,467 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:42,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:42:42,467 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:42:42,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-07 01:42:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:44,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:42:44,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:42:44,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:42:45,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1050204367] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:42:45,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:42:45,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 01:42:45,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834561338] [2021-11-07 01:42:45,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:42:45,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:42:45,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:42:45,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:42:45,490 INFO L87 Difference]: Start difference. First operand 52362 states and 72967 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:48,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:42:48,793 INFO L93 Difference]: Finished difference Result 124959 states and 174632 transitions. [2021-11-07 01:42:48,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:42:48,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 01:42:48,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:42:49,012 INFO L225 Difference]: With dead ends: 124959 [2021-11-07 01:42:49,013 INFO L226 Difference]: Without dead ends: 72629 [2021-11-07 01:42:49,111 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:42:49,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72629 states. [2021-11-07 01:42:52,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72629 to 72604. [2021-11-07 01:42:52,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72604 states, 71881 states have (on average 1.3907986811535733) internal successors, (99972), 71943 states have internal predecessors, (99972), 480 states have call successors, (480), 240 states have call predecessors, (480), 240 states have return successors, (1216), 444 states have call predecessors, (1216), 480 states have call successors, (1216) [2021-11-07 01:42:52,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72604 states to 72604 states and 101668 transitions. [2021-11-07 01:42:52,647 INFO L78 Accepts]: Start accepts. Automaton has 72604 states and 101668 transitions. Word has length 86 [2021-11-07 01:42:52,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:42:52,647 INFO L470 AbstractCegarLoop]: Abstraction has 72604 states and 101668 transitions. [2021-11-07 01:42:52,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:42:52,648 INFO L276 IsEmpty]: Start isEmpty. Operand 72604 states and 101668 transitions. [2021-11-07 01:42:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 01:42:52,693 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:42:52,693 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:42:52,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-11-07 01:42:52,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-07 01:42:53,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:42:53,110 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:42:53,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:42:53,110 INFO L85 PathProgramCache]: Analyzing trace with hash 404056556, now seen corresponding path program 1 times [2021-11-07 01:42:53,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:42:53,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026307425] [2021-11-07 01:42:53,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:53,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:42:53,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:42:53,113 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:42:53,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 01:42:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:55,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:42:55,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:42:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 01:42:56,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:42:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 01:42:57,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:42:57,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026307425] [2021-11-07 01:42:57,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026307425] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:42:57,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [125020791] [2021-11-07 01:42:57,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:42:57,752 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:57,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:42:57,753 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:42:57,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-07 01:42:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:42:59,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:42:59,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:43:00,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:43:00,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [125020791] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:00,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:43:00,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 01:43:00,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170906274] [2021-11-07 01:43:00,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:43:00,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:00,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:43:00,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:43:00,929 INFO L87 Difference]: Start difference. First operand 72604 states and 101668 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:06,054 INFO L93 Difference]: Finished difference Result 145202 states and 203338 transitions. [2021-11-07 01:43:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:43:06,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-07 01:43:06,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:06,263 INFO L225 Difference]: With dead ends: 145202 [2021-11-07 01:43:06,263 INFO L226 Difference]: Without dead ends: 72628 [2021-11-07 01:43:06,376 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:43:06,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72628 states. [2021-11-07 01:43:09,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72628 to 72609. [2021-11-07 01:43:09,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72609 states, 71886 states have (on average 1.3907436774893582) internal successors, (99975), 71948 states have internal predecessors, (99975), 480 states have call successors, (480), 240 states have call predecessors, (480), 240 states have return successors, (1216), 444 states have call predecessors, (1216), 480 states have call successors, (1216) [2021-11-07 01:43:09,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72609 states to 72609 states and 101671 transitions. [2021-11-07 01:43:09,404 INFO L78 Accepts]: Start accepts. Automaton has 72609 states and 101671 transitions. Word has length 113 [2021-11-07 01:43:09,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:09,405 INFO L470 AbstractCegarLoop]: Abstraction has 72609 states and 101671 transitions. [2021-11-07 01:43:09,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:09,405 INFO L276 IsEmpty]: Start isEmpty. Operand 72609 states and 101671 transitions. [2021-11-07 01:43:09,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 01:43:09,443 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:09,443 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:09,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:09,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:09,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:43:09,858 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:43:09,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:09,859 INFO L85 PathProgramCache]: Analyzing trace with hash -599257293, now seen corresponding path program 1 times [2021-11-07 01:43:09,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:09,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609119687] [2021-11-07 01:43:09,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:09,861 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:09,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:09,862 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:09,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-07 01:43:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:11,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:43:11,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 01:43:13,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:14,578 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 01:43:14,578 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:14,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609119687] [2021-11-07 01:43:14,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609119687] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:43:14,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [464682264] [2021-11-07 01:43:14,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:14,579 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:43:14,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:43:14,587 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:43:14,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0c8c6f3-6197-4417-b75a-7533371ac089/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-07 01:43:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:16,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:43:16,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:17,689 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:43:17,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 01:43:18,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [464682264] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:18,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:43:18,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-07 01:43:18,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121914427] [2021-11-07 01:43:18,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:43:18,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:18,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:43:18,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:43:18,782 INFO L87 Difference]: Start difference. First operand 72609 states and 101671 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)