./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/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_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/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 32bit --witnessprinter.graph.data.programhash 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:02:31,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:02:31,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:02:31,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:02:31,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:02:31,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:02:31,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:02:31,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:02:31,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:02:31,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:02:31,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:02:31,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:02:31,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:02:31,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:02:31,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:02:31,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:02:31,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:02:31,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:02:31,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:02:31,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:02:31,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:02:31,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:02:31,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:02:31,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:02:31,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:02:31,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:02:31,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:02:31,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:02:31,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:02:31,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:02:31,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:02:31,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:02:31,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:02:31,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:02:31,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:02:31,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:02:31,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:02:31,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:02:31,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:02:31,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:02:31,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:02:31,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:02:31,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:02:31,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:02:31,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:02:31,587 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:02:31,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:02:31,588 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:02:31,588 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:02:31,588 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:02:31,589 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:02:31,589 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:02:31,590 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:02:31,591 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:02:31,591 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:02:31,591 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:02:31,592 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:02:31,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:02:31,593 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:02:31,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:02:31,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:02:31,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:02:31,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:02:31,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:02:31,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:02:31,595 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:02:31,595 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:02:31,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:02:31,596 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:02:31,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:02:31,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:02:31,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:02:31,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:31,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:02:31,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:02:31,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:02:31,601 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:02:31,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:02:31,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:02:31,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:02:31,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:02:31,602 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f [2021-11-07 02:02:32,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:02:32,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:02:32,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:02:32,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:02:32,035 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:02:32,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2021-11-07 02:02:32,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data/f3586cf44/4cf73d4afa0e421680929a945a66577b/FLAG44ef6ce70 [2021-11-07 02:02:32,852 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:02:32,852 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2021-11-07 02:02:32,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data/f3586cf44/4cf73d4afa0e421680929a945a66577b/FLAG44ef6ce70 [2021-11-07 02:02:33,109 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data/f3586cf44/4cf73d4afa0e421680929a945a66577b [2021-11-07 02:02:33,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:02:33,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:02:33,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:33,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:02:33,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:02:33,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:33" (1/1) ... [2021-11-07 02:02:33,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0df87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:33, skipping insertion in model container [2021-11-07 02:02:33,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:33" (1/1) ... [2021-11-07 02:02:33,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:02:33,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:33,635 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2021-11-07 02:02:33,641 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2021-11-07 02:02:33,643 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2021-11-07 02:02:33,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:33,670 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 02:02:33,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@89c850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:33, skipping insertion in model container [2021-11-07 02:02:33,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:33,671 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:02:33,674 INFO L168 Benchmark]: Toolchain (without parser) took 557.76 ms. Allocated memory is still 94.4 MB. Free memory was 58.4 MB in the beginning and 65.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:33,675 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory was 65.9 MB in the beginning and 65.9 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:02:33,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.45 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 65.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:33,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory was 65.9 MB in the beginning and 65.9 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 551.45 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 65.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 642]: 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/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_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/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 32bit --witnessprinter.graph.data.programhash 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:02:36,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:02:36,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:02:36,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:02:36,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:02:36,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:02:36,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:02:36,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:02:36,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:02:36,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:02:36,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:02:36,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:02:36,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:02:36,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:02:36,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:02:36,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:02:36,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:02:36,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:02:36,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:02:36,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:02:36,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:02:36,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:02:36,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:02:36,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:02:36,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:02:36,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:02:36,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:02:36,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:02:36,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:02:36,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:02:36,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:02:36,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:02:36,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:02:36,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:02:36,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:02:36,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:02:36,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:02:36,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:02:36,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:02:36,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:02:36,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:02:36,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:02:36,788 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:02:36,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:02:36,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:02:36,790 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:02:36,790 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:02:36,791 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:02:36,791 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:02:36,791 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:02:36,791 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:02:36,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:02:36,793 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:02:36,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:02:36,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:02:36,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:02:36,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:02:36,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:02:36,795 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:02:36,795 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:02:36,795 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:02:36,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:02:36,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:02:36,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:02:36,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:02:36,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:02:36,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:02:36,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:02:36,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:36,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:02:36,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:02:36,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:02:36,799 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:02:36,799 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:02:36,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:02:36,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:02:36,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:02:36,800 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f [2021-11-07 02:02:37,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:02:37,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:02:37,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:02:37,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:02:37,306 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:02:37,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2021-11-07 02:02:37,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data/209e7beff/82a8a6c4f9344972ae980401fd63fcde/FLAGd326f18ac [2021-11-07 02:02:38,237 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:02:38,238 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2021-11-07 02:02:38,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data/209e7beff/82a8a6c4f9344972ae980401fd63fcde/FLAGd326f18ac [2021-11-07 02:02:38,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/data/209e7beff/82a8a6c4f9344972ae980401fd63fcde [2021-11-07 02:02:38,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:02:38,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:02:38,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:38,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:02:38,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:02:38,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:38" (1/1) ... [2021-11-07 02:02:38,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9d5cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:38, skipping insertion in model container [2021-11-07 02:02:38,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:38" (1/1) ... [2021-11-07 02:02:38,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:02:38,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:38,957 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2021-11-07 02:02:38,968 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2021-11-07 02:02:38,973 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2021-11-07 02:02:39,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:39,029 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:02:39,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:39,143 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2021-11-07 02:02:39,145 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2021-11-07 02:02:39,147 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2021-11-07 02:02:39,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:39,169 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:02:39,264 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2021-11-07 02:02:39,265 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2021-11-07 02:02:39,266 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_04ebf8a3-6f13-449a-95af-8f1609d1561a/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2021-11-07 02:02:39,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:39,335 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:02:39,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39 WrapperNode [2021-11-07 02:02:39,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:39,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:39,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:02:39,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:02:39,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:39,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:02:39,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:02:39,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:02:39,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:02:39,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:02:39,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:02:39,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:02:39,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (1/1) ... [2021-11-07 02:02:39,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:39,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:39,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:02:39,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:02:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:02:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:02:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:02:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:02:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:02:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:02:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:02:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:02:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:02:40,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:02:40,782 INFO L299 CfgBuilder]: Removed 59 assume(true) statements. [2021-11-07 02:02:40,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:40 BoogieIcfgContainer [2021-11-07 02:02:40,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:02:40,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:02:40,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:02:40,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:02:40,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:02:38" (1/3) ... [2021-11-07 02:02:40,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0acdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:40, skipping insertion in model container [2021-11-07 02:02:40,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:39" (2/3) ... [2021-11-07 02:02:40,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0acdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:40, skipping insertion in model container [2021-11-07 02:02:40,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:40" (3/3) ... [2021-11-07 02:02:40,794 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-2.i [2021-11-07 02:02:40,800 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:02:40,801 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 02:02:40,867 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:02:40,879 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 02:02:40,879 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 02:02:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 59 states have internal predecessors, (83), 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 02:02:40,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:02:40,905 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:40,906 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:40,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:40,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:40,913 INFO L85 PathProgramCache]: Analyzing trace with hash -954795863, now seen corresponding path program 1 times [2021-11-07 02:02:40,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:40,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34952214] [2021-11-07 02:02:40,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:40,927 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:40,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:40,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:40,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:02:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:41,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:02:41,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:41,170 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 02:02:41,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:41,221 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 02:02:41,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:41,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34952214] [2021-11-07 02:02:41,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34952214] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:41,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:41,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:02:41,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398055819] [2021-11-07 02:02:41,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:02:41,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:41,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:02:41,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:02:41,254 INFO L87 Difference]: Start difference. First operand has 60 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 59 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 02:02:41,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:41,287 INFO L93 Difference]: Finished difference Result 117 states and 163 transitions. [2021-11-07 02:02:41,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:02:41,289 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-11-07 02:02:41,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:41,299 INFO L225 Difference]: With dead ends: 117 [2021-11-07 02:02:41,299 INFO L226 Difference]: Without dead ends: 56 [2021-11-07 02:02:41,306 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 02:02:41,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-07 02:02:41,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-07 02:02:41,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 55 states have internal predecessors, (67), 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 02:02:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2021-11-07 02:02:41,356 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 11 [2021-11-07 02:02:41,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:41,356 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-11-07 02:02:41,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 02:02:41,357 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2021-11-07 02:02:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:02:41,359 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:41,359 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:41,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:41,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:41,573 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:41,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:41,576 INFO L85 PathProgramCache]: Analyzing trace with hash -964954594, now seen corresponding path program 1 times [2021-11-07 02:02:41,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:41,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465997775] [2021-11-07 02:02:41,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:41,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:41,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:41,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:41,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:02:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:41,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:02:41,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:41,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-07 02:02:41,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-07 02:02:42,041 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 02:02:42,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:42,205 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 02:02:42,205 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:42,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465997775] [2021-11-07 02:02:42,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465997775] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:42,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:42,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 02:02:42,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426021861] [2021-11-07 02:02:42,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:02:42,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:42,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:02:42,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:02:42,210 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 02:02:43,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:43,444 INFO L93 Difference]: Finished difference Result 116 states and 139 transitions. [2021-11-07 02:02:43,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:02:43,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 11 [2021-11-07 02:02:43,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:43,455 INFO L225 Difference]: With dead ends: 116 [2021-11-07 02:02:43,455 INFO L226 Difference]: Without dead ends: 70 [2021-11-07 02:02:43,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:02:43,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-07 02:02:43,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 61. [2021-11-07 02:02:43,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 60 states have internal predecessors, (73), 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 02:02:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2021-11-07 02:02:43,474 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 11 [2021-11-07 02:02:43,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:43,474 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2021-11-07 02:02:43,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 02:02:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2021-11-07 02:02:43,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 02:02:43,477 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:43,477 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:43,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:43,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:43,691 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:43,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash 195081255, now seen corresponding path program 1 times [2021-11-07 02:02:43,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:43,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286088433] [2021-11-07 02:02:43,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:43,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:43,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:43,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:43,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:02:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:43,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 02:02:43,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:44,076 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 02:02:44,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:44,240 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 02:02:44,241 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:44,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286088433] [2021-11-07 02:02:44,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286088433] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:44,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:44,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:02:44,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304395615] [2021-11-07 02:02:44,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 02:02:44,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:44,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 02:02:44,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:02:44,244 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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 02:02:44,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:44,904 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2021-11-07 02:02:44,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:02:44,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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 13 [2021-11-07 02:02:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:44,910 INFO L225 Difference]: With dead ends: 70 [2021-11-07 02:02:44,910 INFO L226 Difference]: Without dead ends: 60 [2021-11-07 02:02:44,911 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:02:44,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-07 02:02:44,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2021-11-07 02:02:44,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 56 states have internal predecessors, (68), 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 02:02:44,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2021-11-07 02:02:44,918 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 13 [2021-11-07 02:02:44,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:44,919 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2021-11-07 02:02:44,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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 02:02:44,919 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2021-11-07 02:02:44,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 02:02:44,920 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:44,920 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:44,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:45,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:45,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1411368152, now seen corresponding path program 1 times [2021-11-07 02:02:45,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:45,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053824591] [2021-11-07 02:02:45,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:45,134 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:45,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:45,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:45,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:02:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:45,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:02:45,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:45,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:02:45,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:45,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 02:02:45,412 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:45,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053824591] [2021-11-07 02:02:45,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053824591] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:45,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:45,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:02:45,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198682419] [2021-11-07 02:02:45,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:02:45,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:45,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:02:45,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:02:45,416 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 02:02:45,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:45,479 INFO L93 Difference]: Finished difference Result 91 states and 106 transitions. [2021-11-07 02:02:45,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:02:45,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2021-11-07 02:02:45,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:45,482 INFO L225 Difference]: With dead ends: 91 [2021-11-07 02:02:45,482 INFO L226 Difference]: Without dead ends: 89 [2021-11-07 02:02:45,482 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:02:45,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-07 02:02:45,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 59. [2021-11-07 02:02:45,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.25) internal successors, (70), 58 states have internal predecessors, (70), 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 02:02:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2021-11-07 02:02:45,503 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 17 [2021-11-07 02:02:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:45,504 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2021-11-07 02:02:45,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 02:02:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2021-11-07 02:02:45,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 02:02:45,505 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:45,505 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:02:45,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:45,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:45,719 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:02:45,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:45,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1409759438, now seen corresponding path program 1 times [2021-11-07 02:02:45,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:45,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220425461] [2021-11-07 02:02:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:45,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:45,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:45,725 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:45,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:02:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:45,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 02:02:45,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:46,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 204 [2021-11-07 02:02:47,961 INFO L354 Elim1Store]: treesize reduction 478, result has 9.3 percent of original size [2021-11-07 02:02:47,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 258 treesize of output 159 [2021-11-07 02:03:03,223 WARN L207 SmtUtils]: Spent 15.23 s on a formula simplification. DAG size of input: 82 DAG size of output: 38 [2021-11-07 02:03:03,225 INFO L354 Elim1Store]: treesize reduction 393, result has 20.0 percent of original size [2021-11-07 02:03:03,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 237 treesize of output 206 [2021-11-07 02:03:31,459 INFO L354 Elim1Store]: treesize reduction 214, result has 8.5 percent of original size [2021-11-07 02:03:31,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 340 treesize of output 198 [2021-11-07 02:03:31,948 INFO L354 Elim1Store]: treesize reduction 188, result has 23.0 percent of original size [2021-11-07 02:03:31,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 186 treesize of output 167 [2021-11-07 02:03:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:03:32,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:35,210 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse0 |c_~#drvlist~0.base| (store (select .cse0 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= (select (select (let ((.cse3 (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse5 (store (select |c_#memory_$Pointer$.base| .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) |c_ULTIMATE.start_ldv_successful_malloc_#res.base|)))) (store .cse4 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse4 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_5 .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) |c_~#drvlist~0.base|)))))) (store .cse3 |c_~#drvlist~0.base| (store (select .cse3 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|))) is different from false [2021-11-07 02:03:47,533 WARN L207 SmtUtils]: Spent 5.17 s on a formula simplification that was a NOOP. DAG size: 44 [2021-11-07 02:03:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:03:48,496 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:48,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220425461] [2021-11-07 02:03:48,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220425461] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:03:48,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [717751] [2021-11-07 02:03:48,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:03:48,497 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:03:48,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:03:48,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:03:48,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 02:03:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:48,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-07 02:03:48,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:48,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 121 [2021-11-07 02:03:51,203 INFO L354 Elim1Store]: treesize reduction 336, result has 8.9 percent of original size [2021-11-07 02:03:51,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 274 treesize of output 159 [2021-11-07 02:03:51,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:03:51,219 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:03:53,763 INFO L354 Elim1Store]: treesize reduction 615, result has 18.2 percent of original size [2021-11-07 02:03:53,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 231 treesize of output 223 [2021-11-07 02:04:50,795 INFO L354 Elim1Store]: treesize reduction 204, result has 13.6 percent of original size [2021-11-07 02:04:50,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 291 treesize of output 201 [2021-11-07 02:04:51,156 INFO L354 Elim1Store]: treesize reduction 160, result has 31.0 percent of original size [2021-11-07 02:04:51,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 28 case distinctions, treesize of input 247 treesize of output 197 [2021-11-07 02:04:51,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:51,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:54,021 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) v_ULTIMATE.start___ldv_list_add_~new.offset_6))))) (store .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_6 v_ULTIMATE.start___ldv_list_add_~next.offset_6) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.offset|))))) (store .cse0 |c_~#drvlist~0.base| (store (select .cse0 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| v_ULTIMATE.start___ldv_list_add_~new.offset_6))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= (select (select (let ((.cse3 (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse5 (store (select |c_#memory_$Pointer$.base| .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) |c_ULTIMATE.start_ldv_successful_malloc_#res.base|)))) (store .cse4 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse4 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_6 .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.base|)))))) (store .cse3 |c_~#drvlist~0.base| (store (select .cse3 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| |c_ULTIMATE.start_ldv_successful_malloc_#res.base|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|))) is different from false [2021-11-07 02:05:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:14,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [717751] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:05:14,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611758596] [2021-11-07 02:05:14,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:14,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:05:14,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:05:14,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:05:14,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 02:05:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:14,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-07 02:05:14,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:14,991 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-07 02:05:14,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 84 [2021-11-07 02:05:16,171 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-07 02:05:16,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 23 [2021-11-07 02:05:17,145 INFO L354 Elim1Store]: treesize reduction 478, result has 9.3 percent of original size [2021-11-07 02:05:17,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 260 treesize of output 161 [2021-11-07 02:05:17,300 INFO L354 Elim1Store]: treesize reduction 412, result has 8.2 percent of original size [2021-11-07 02:05:17,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 213 treesize of output 139 [2021-11-07 02:05:18,831 INFO L354 Elim1Store]: treesize reduction 231, result has 1.3 percent of original size [2021-11-07 02:05:18,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 132 treesize of output 76 [2021-11-07 02:05:18,885 INFO L354 Elim1Store]: treesize reduction 171, result has 1.7 percent of original size [2021-11-07 02:05:18,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 58 treesize of output 41 [2021-11-07 02:05:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:19,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:51,289 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) v_ULTIMATE.start___ldv_list_add_~new.offset_7))))) (store .cse1 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse1 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_7 v_ULTIMATE.start___ldv_list_add_~next.offset_7) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) v_ULTIMATE.start___ldv_list_add_~prev.offset_7))))) (store .cse0 |c_~#drvlist~0.base| (store (select .cse0 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 v_ULTIMATE.start___ldv_list_add_~new.offset_7))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= (select (select (let ((.cse3 (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse5 (store (select |c_#memory_$Pointer$.base| .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base)))) (store .cse4 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse4 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_7 .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) |c_~#drvlist~0.base|)))))) (store .cse3 |c_~#drvlist~0.base| (store (select .cse3 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|))) is different from false [2021-11-07 02:05:58,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:58,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611758596] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:05:58,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 02:05:58,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 26 [2021-11-07 02:05:58,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437133943] [2021-11-07 02:05:58,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-07 02:05:58,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:58,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-07 02:05:58,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=450, Unknown=27, NotChecked=138, Total=702 [2021-11-07 02:05:58,743 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 26 states have internal predecessors, (69), 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 02:06:24,836 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base|))) (and (= |c_~#mutexes~0.offset| (_ bv0 32)) (= |c_~#mutexes~0.offset| (select .cse0 (bvadd |c_~#mutexes~0.offset| (_ bv4 32)))) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse1 (let ((.cse2 (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse3 (store (select |c_#memory_$Pointer$.offset| .cse3) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse2 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse2 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse1 |c_~#drvlist~0.base| (store (select .cse1 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (exists ((|#StackHeapBarrier| (_ BitVec 32)) (ULTIMATE.start___ldv_list_add_~new.offset (_ BitVec 32)) (|ULTIMATE.start_ldv_successful_malloc_#res.base| (_ BitVec 32))) (let ((.cse19 (select |c_#memory_$Pointer$.base| |ULTIMATE.start_ldv_successful_malloc_#res.base|)) (.cse15 (bvadd ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32)))) (let ((.cse13 (select .cse19 .cse15))) (and (let ((.cse18 (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_ldv_successful_malloc_#res.base|))) (let ((.cse8 (select .cse18 ULTIMATE.start___ldv_list_add_~new.offset))) (let ((.cse17 (select .cse18 .cse15)) (.cse16 (select |c_#memory_$Pointer$.base| .cse13)) (.cse14 (select |c_#memory_$Pointer$.offset| .cse13)) (.cse12 (bvadd (_ bv4 32) .cse8))) (let ((.cse5 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse14 .cse12))) (.cse7 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse16 .cse12))) (.cse4 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse14 .cse17))) (.cse6 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse16 .cse17))) (.cse10 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse14 .cse15))) (.cse9 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| .cse13))) (or (and .cse4 .cse5 .cse6 .cse7) (and .cse4 (= ULTIMATE.start___ldv_list_add_~new.offset .cse8) .cse6 .cse9) (and .cse10 .cse5 .cse9 .cse7) (and (let ((.cse11 (= ULTIMATE.start___ldv_list_add_~new.offset .cse12))) (or (and .cse4 .cse11 .cse6) (and .cse11 .cse10))) .cse9)))))) (bvult |#StackHeapBarrier| |c_~#mutexes~0.base|) (not (= .cse13 |c_~#mutexes~0.base|)) (bvult |ULTIMATE.start_ldv_successful_malloc_#res.base| |#StackHeapBarrier|) (= (select .cse19 ULTIMATE.start___ldv_list_add_~new.offset) .cse13))))) (= |c_~#mutexes~0.offset| (select .cse0 |c_~#mutexes~0.offset|)) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= (select (select (let ((.cse20 (let ((.cse22 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse21 (store |c_#memory_$Pointer$.base| .cse22 (store (select |c_#memory_$Pointer$.base| .cse22) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) |c_ULTIMATE.start_ldv_successful_malloc_#res.base|)))) (store .cse21 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse21 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_7 .cse22) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) |c_~#drvlist~0.base|)))))) (store .cse20 |c_~#drvlist~0.base| (store (select .cse20 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (= (select (select |c_#memory_$Pointer$.base| |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|) (exists ((ULTIMATE.start___ldv_list_add_~new.offset (_ BitVec 32)) (|ULTIMATE.start_ldv_successful_malloc_#res.base| (_ BitVec 32))) (let ((.cse28 (select |c_#memory_$Pointer$.base| |ULTIMATE.start_ldv_successful_malloc_#res.base|))) (let ((.cse30 (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_ldv_successful_malloc_#res.base|)) (.cse29 (bvadd ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32))) (.cse25 (select .cse28 ULTIMATE.start___ldv_list_add_~new.offset))) (let ((.cse26 (select |c_#memory_$Pointer$.base| .cse25)) (.cse24 (select .cse30 .cse29)) (.cse23 (select |c_#memory_$Pointer$.offset| .cse25)) (.cse27 (bvadd (_ bv4 32) (select .cse30 ULTIMATE.start___ldv_list_add_~new.offset)))) (and (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse23 .cse24)) (not (= .cse25 |ULTIMATE.start_ldv_successful_malloc_#res.base|)) (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse26 .cse27)) (= .cse25 (select .cse28 .cse29)) (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse26 .cse24)) (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse23 .cse27)) (not (= |ULTIMATE.start_ldv_successful_malloc_#res.base| |c_~#mutexes~0.base|)) (not (= .cse25 |c_~#mutexes~0.base|))))))) (forall ((v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 (_ BitVec 32))) (or (and (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= (select (select (let ((.cse31 (let ((.cse33 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse32 (store |c_#memory_$Pointer$.base| .cse33 (store (select |c_#memory_$Pointer$.base| .cse33) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7)))) (store .cse32 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 (store (store (select .cse32 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7) v_ULTIMATE.start___ldv_list_add_~new.offset_5 .cse33) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) |c_~#drvlist~0.base|)))))) (store .cse31 |c_~#drvlist~0.base| (store (select .cse31 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse34 (let ((.cse35 (let ((.cse36 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse36 (store (select |c_#memory_$Pointer$.offset| .cse36) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse35 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 (store (store (select .cse35 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse34 |c_~#drvlist~0.base| (store (select .cse34 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (not (bvult v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 |c_#StackHeapBarrier|)))) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse37 (let ((.cse38 (let ((.cse39 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse39 (store (select |c_#memory_$Pointer$.offset| .cse39) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) v_ULTIMATE.start___ldv_list_add_~new.offset_7))))) (store .cse38 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse38 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_7 v_ULTIMATE.start___ldv_list_add_~next.offset_7) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) v_ULTIMATE.start___ldv_list_add_~prev.offset_7))))) (store .cse37 |c_~#drvlist~0.base| (store (select .cse37 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 v_ULTIMATE.start___ldv_list_add_~new.offset_7))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (forall ((v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9 (_ BitVec 32))) (or (and (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= (select (select (let ((.cse40 (let ((.cse42 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse41 (store |c_#memory_$Pointer$.base| .cse42 (store (select |c_#memory_$Pointer$.base| .cse42) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9)))) (store .cse41 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9 (store (store (select .cse41 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9) v_ULTIMATE.start___ldv_list_add_~new.offset_7 .cse42) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) |c_~#drvlist~0.base|)))))) (store .cse40 |c_~#drvlist~0.base| (store (select .cse40 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse43 (let ((.cse44 (let ((.cse45 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse45 (store (select |c_#memory_$Pointer$.offset| .cse45) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) v_ULTIMATE.start___ldv_list_add_~new.offset_7))))) (store .cse44 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9 (store (store (select .cse44 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9) v_ULTIMATE.start___ldv_list_add_~new.offset_7 v_ULTIMATE.start___ldv_list_add_~next.offset_7) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) v_ULTIMATE.start___ldv_list_add_~prev.offset_7))))) (store .cse43 |c_~#drvlist~0.base| (store (select .cse43 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 v_ULTIMATE.start___ldv_list_add_~new.offset_7))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9)))))))) (forall ((v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 (_ BitVec 32))) (or (and (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= (select (select (let ((.cse46 (let ((.cse48 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse47 (store |c_#memory_$Pointer$.base| .cse48 (store (select |c_#memory_$Pointer$.base| .cse48) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8)))) (store .cse47 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 (store (store (select .cse47 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8) v_ULTIMATE.start___ldv_list_add_~new.offset_6 .cse48) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.base|)))))) (store .cse46 |c_~#drvlist~0.base| (store (select .cse46 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse49 (let ((.cse50 (let ((.cse51 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse51 (store (select |c_#memory_$Pointer$.offset| .cse51) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) v_ULTIMATE.start___ldv_list_add_~new.offset_6))))) (store .cse50 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 (store (store (select .cse50 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8) v_ULTIMATE.start___ldv_list_add_~new.offset_6 v_ULTIMATE.start___ldv_list_add_~next.offset_6) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.offset|))))) (store .cse49 |c_~#drvlist~0.base| (store (select .cse49 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| v_ULTIMATE.start___ldv_list_add_~new.offset_6))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (not (bvult v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 |c_#StackHeapBarrier|)))) (exists ((|#StackHeapBarrier| (_ BitVec 32)) (ULTIMATE.start___ldv_list_add_~new.offset (_ BitVec 32)) (|ULTIMATE.start_ldv_successful_malloc_#res.base| (_ BitVec 32))) (let ((.cse56 (select |c_#memory_$Pointer$.base| |ULTIMATE.start_ldv_successful_malloc_#res.base|)) (.cse54 (bvadd ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32)))) (let ((.cse57 (select .cse56 .cse54))) (let ((.cse53 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| .cse57)) (.cse58 (select |c_#memory_$Pointer$.base| .cse57)) (.cse52 (select |c_#memory_$Pointer$.offset| .cse57)) (.cse55 (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_ldv_successful_malloc_#res.base|))) (and (bvult |#StackHeapBarrier| |c_~#mutexes~0.base|) (bvult |ULTIMATE.start_ldv_successful_malloc_#res.base| |#StackHeapBarrier|) (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse52 (_ bv0 32))) (or (and .cse53 (= .cse54 (_ bv0 32))) (= (select .cse55 .cse54) (_ bv0 32))) (= (select .cse56 ULTIMATE.start___ldv_list_add_~new.offset) .cse57) (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse58 (_ bv0 32))) (let ((.cse59 (select .cse55 ULTIMATE.start___ldv_list_add_~new.offset))) (let ((.cse61 (bvadd (_ bv4 32) .cse59))) (let ((.cse60 (select .cse52 (_ bv4 32))) (.cse63 (= ULTIMATE.start___ldv_list_add_~new.offset .cse59)) (.cse62 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse52 .cse61))) (.cse64 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse58 .cse61)))) (or (and (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse58 (_ bv4 32))) (= .cse59 (_ bv0 32)) (= ULTIMATE.start___ldv_list_add_~new.offset .cse60)) (and (= .cse60 (_ bv0 32)) (or (and (= ULTIMATE.start___ldv_list_add_~new.offset .cse61) .cse53) .cse62 (and .cse63 .cse53)) .cse64) (and (or .cse63 .cse62) (= ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32)) .cse53 .cse64)))))))))) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= (select (select (let ((.cse65 (let ((.cse67 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse66 (store |c_#memory_$Pointer$.base| .cse67 (store (select |c_#memory_$Pointer$.base| .cse67) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base)))) (store .cse66 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse66 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_5 .cse67) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) |c_~#drvlist~0.base|)))))) (store .cse65 |c_~#drvlist~0.base| (store (select .cse65 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)))) is different from false [2021-11-07 02:07:37,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:37,859 INFO L93 Difference]: Finished difference Result 206 states and 242 transitions. [2021-11-07 02:07:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 02:07:37,879 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 26 states have internal predecessors, (69), 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 17 [2021-11-07 02:07:37,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:37,882 INFO L225 Difference]: With dead ends: 206 [2021-11-07 02:07:37,882 INFO L226 Difference]: Without dead ends: 158 [2021-11-07 02:07:37,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 99.3s TimeCoverageRelationStatistics Valid=156, Invalid=702, Unknown=28, NotChecked=236, Total=1122 [2021-11-07 02:07:37,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-07 02:07:37,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 84. [2021-11-07 02:07:37,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 83 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 02:07:37,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2021-11-07 02:07:37,903 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 17 [2021-11-07 02:07:37,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:37,904 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2021-11-07 02:07:37,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 26 states have internal predecessors, (69), 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 02:07:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2021-11-07 02:07:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 02:07:37,905 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:37,905 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:37,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-07 02:07:38,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 02:07:38,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-07 02:07:38,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:07:38,520 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:07:38,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:38,521 INFO L85 PathProgramCache]: Analyzing trace with hash 688381617, now seen corresponding path program 1 times [2021-11-07 02:07:38,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:38,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802006315] [2021-11-07 02:07:38,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:38,521 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:38,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:38,522 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:38,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:07:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:38,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 02:07:38,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:38,953 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-07 02:07:38,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 46 [2021-11-07 02:07:39,292 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 02:07:39,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-07 02:07:40,874 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-07 02:07:40,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 45 [2021-11-07 02:07:41,339 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-07 02:07:41,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-11-07 02:07:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:41,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:41,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:41,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:07:41,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802006315] [2021-11-07 02:07:41,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802006315] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:07:41,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1521539543] [2021-11-07 02:07:41,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:41,591 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:07:41,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:07:41,594 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:07:41,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-07 02:07:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:42,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-07 02:07:42,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:42,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-07 02:07:42,259 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-07 02:07:42,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 46 [2021-11-07 02:07:42,784 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 02:07:42,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-07 02:07:43,779 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-07 02:07:43,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 48 [2021-11-07 02:07:44,275 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-07 02:07:44,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-11-07 02:07:44,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:44,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:44,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:44,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1521539543] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:07:44,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22589592] [2021-11-07 02:07:44,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:44,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:07:44,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:07:44,443 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:07:44,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 02:07:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:44,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 02:07:44,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:44,937 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-07 02:07:44,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 46 [2021-11-07 02:07:45,271 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 02:07:45,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-07 02:07:47,018 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-07 02:07:47,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 45 [2021-11-07 02:07:47,392 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-07 02:07:47,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-11-07 02:07:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:47,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:07:47,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22589592] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:07:47,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 02:07:47,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 11 [2021-11-07 02:07:47,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885144521] [2021-11-07 02:07:47,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 02:07:47,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:07:47,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 02:07:47,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:07:47,542 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 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 02:07:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:55,362 INFO L93 Difference]: Finished difference Result 155 states and 186 transitions. [2021-11-07 02:07:55,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 02:07:55,364 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 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 19 [2021-11-07 02:07:55,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:55,365 INFO L225 Difference]: With dead ends: 155 [2021-11-07 02:07:55,366 INFO L226 Difference]: Without dead ends: 121 [2021-11-07 02:07:55,367 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-07 02:07:55,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-07 02:07:55,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 74. [2021-11-07 02:07:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 71 states have (on average 1.2112676056338028) internal successors, (86), 73 states have internal predecessors, (86), 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 02:07:55,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2021-11-07 02:07:55,384 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 19 [2021-11-07 02:07:55,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:55,385 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2021-11-07 02:07:55,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 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 02:07:55,385 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2021-11-07 02:07:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 02:07:55,387 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:55,387 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:07:55,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 02:07:55,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:55,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:56,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:07:56,006 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:07:56,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:56,007 INFO L85 PathProgramCache]: Analyzing trace with hash 357801148, now seen corresponding path program 2 times [2021-11-07 02:07:56,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:56,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216477451] [2021-11-07 02:07:56,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 02:07:56,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:56,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:56,019 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:56,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ebf8a3-6f13-449a-95af-8f1609d1561a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:07:56,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 02:07:56,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:07:56,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-07 02:07:56,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:56,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2021-11-07 02:08:03,249 WARN L207 SmtUtils]: Spent 6.01 s on a formula simplification. DAG size of input: 83 DAG size of output: 25 [2021-11-07 02:08:03,250 INFO L354 Elim1Store]: treesize reduction 304, result has 9.8 percent of original size [2021-11-07 02:08:03,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 251 treesize of output 136 [2021-11-07 02:08:03,992 INFO L354 Elim1Store]: treesize reduction 429, result has 21.3 percent of original size [2021-11-07 02:08:03,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 224 treesize of output 185 [2021-11-07 02:08:16,650 WARN L207 SmtUtils]: Spent 9.18 s on a formula simplification. DAG size of input: 234 DAG size of output: 82 [2021-11-07 02:08:16,651 INFO L354 Elim1Store]: treesize reduction 1156, result has 14.6 percent of original size [2021-11-07 02:08:16,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 463 treesize of output 407 [2021-11-07 02:09:24,764 WARN L207 SmtUtils]: Spent 1.13 m on a formula simplification. DAG size of input: 224 DAG size of output: 120 [2021-11-07 02:09:24,765 INFO L354 Elim1Store]: treesize reduction 888, result has 31.6 percent of original size [2021-11-07 02:09:24,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 438 treesize of output 690