./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/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_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 04:56:04,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:56:04,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:56:04,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:56:04,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:56:04,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:56:04,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:56:04,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:56:04,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:56:04,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:56:04,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:56:04,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:56:04,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:56:04,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:56:04,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:56:04,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:56:04,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:56:04,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:56:04,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:56:04,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:56:04,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:56:04,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:56:04,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:56:04,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:56:04,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:56:04,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:56:04,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:56:04,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:56:04,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:56:04,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:56:04,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:56:04,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:56:04,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:56:04,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:56:04,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:56:04,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:56:04,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:56:04,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:56:04,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:56:04,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:56:04,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:56:04,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:56:04,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:56:04,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:56:04,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:56:04,831 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:56:04,831 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:56:04,832 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:56:04,832 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:56:04,832 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:56:04,833 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:56:04,833 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:56:04,840 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:56:04,840 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:56:04,840 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:56:04,841 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:56:04,841 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:56:04,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:56:04,842 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:56:04,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:56:04,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:56:04,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:56:04,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:56:04,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:56:04,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:56:04,844 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:56:04,844 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:56:04,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:56:04,845 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:56:04,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:56:04,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:56:04,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:56:04,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:56:04,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:56:04,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:56:04,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:56:04,849 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:56:04,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:56:04,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:56:04,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:56:04,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:56:04,850 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f [2021-11-03 04:56:05,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:56:05,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:56:05,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:56:05,175 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:56:05,175 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:56:05,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2021-11-03 04:56:05,245 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data/8ca3805bc/70faf6c81b614690a0fd536229defb73/FLAG05b58a0b8 [2021-11-03 04:56:05,707 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:56:05,708 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2021-11-03 04:56:05,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data/8ca3805bc/70faf6c81b614690a0fd536229defb73/FLAG05b58a0b8 [2021-11-03 04:56:06,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data/8ca3805bc/70faf6c81b614690a0fd536229defb73 [2021-11-03 04:56:06,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:56:06,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:56:06,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:06,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:56:06,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:56:06,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:06" (1/1) ... [2021-11-03 04:56:06,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72293278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:06, skipping insertion in model container [2021-11-03 04:56:06,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:06" (1/1) ... [2021-11-03 04:56:06,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:56:06,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:56:06,462 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2021-11-03 04:56:06,472 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2021-11-03 04:56:06,474 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2021-11-03 04:56:06,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:06,508 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) [2021-11-03 04:56:06,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f163001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:06, skipping insertion in model container [2021-11-03 04:56:06,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:06,510 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:56:06,513 INFO L168 Benchmark]: Toolchain (without parser) took 458.17 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.4 MB in the beginning and 79.5 MB in the end (delta: -28.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:56:06,514 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory was 59.5 MB in the beginning and 59.5 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:56:06,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.85 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 79.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:56:06,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory was 59.5 MB in the beginning and 59.5 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 453.85 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 79.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 6.3 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/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_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 04:56:08,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:56:08,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:56:08,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:56:08,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:56:08,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:56:08,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:56:08,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:56:08,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:56:08,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:56:08,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:56:08,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:56:08,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:56:08,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:56:08,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:56:08,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:56:08,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:56:08,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:56:08,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:56:08,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:56:08,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:56:08,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:56:08,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:56:08,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:56:08,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:56:08,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:56:08,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:56:08,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:56:08,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:56:08,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:56:08,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:56:08,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:56:08,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:56:08,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:56:08,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:56:08,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:56:08,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:56:08,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:56:08,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:56:08,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:56:08,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:56:08,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:56:08,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:56:08,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:56:08,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:56:08,856 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:56:08,856 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:56:08,856 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:56:08,856 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:56:08,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:56:08,857 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:56:08,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:56:08,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:56:08,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:56:08,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:56:08,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:56:08,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:56:08,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:56:08,859 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:56:08,859 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:56:08,859 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:56:08,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:56:08,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:56:08,860 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:56:08,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:56:08,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:56:08,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:56:08,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:56:08,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:56:08,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:56:08,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:56:08,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:56:08,861 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:56:08,862 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:56:08,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:56:08,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:56:08,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:56:08,862 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ed361cdf08860b8c7c7d564ef95393de2d3a38663ac135cf0da9ded1f39b3f [2021-11-03 04:56:09,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:56:09,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:56:09,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:56:09,240 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:56:09,240 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:56:09,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2021-11-03 04:56:09,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data/b53f91f8f/0ca688f194014fbcbad0232ef7ba5a6a/FLAGdbd05d49e [2021-11-03 04:56:09,921 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:56:09,922 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i [2021-11-03 04:56:09,935 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data/b53f91f8f/0ca688f194014fbcbad0232ef7ba5a6a/FLAGdbd05d49e [2021-11-03 04:56:10,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/data/b53f91f8f/0ca688f194014fbcbad0232ef7ba5a6a [2021-11-03 04:56:10,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:56:10,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:56:10,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:10,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:56:10,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:56:10,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a73e68e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10, skipping insertion in model container [2021-11-03 04:56:10,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:56:10,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:56:10,564 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2021-11-03 04:56:10,568 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2021-11-03 04:56:10,569 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2021-11-03 04:56:10,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:10,592 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:56:10,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:56:10,632 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2021-11-03 04:56:10,633 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2021-11-03 04:56:10,634 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2021-11-03 04:56:10,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:10,644 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:56:10,687 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26271,26284] [2021-11-03 04:56:10,692 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26396,26409] [2021-11-03 04:56:10,694 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_b352fa3c-c253-40d6-a034-726ebcb03ab9/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-2.i[26511,26524] [2021-11-03 04:56:10,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:56:10,750 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:56:10,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10 WrapperNode [2021-11-03 04:56:10,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:56:10,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:56:10,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:56:10,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:56:10,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:56:10,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:56:10,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:56:10,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:56:10,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:56:10,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:56:10,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:56:10,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:56:10,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (1/1) ... [2021-11-03 04:56:10,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:56:10,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:56:10,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:56:10,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:56:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:56:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:56:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:56:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:56:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:56:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:56:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:56:11,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:56:11,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:56:11,817 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:56:11,818 INFO L299 CfgBuilder]: Removed 59 assume(true) statements. [2021-11-03 04:56:11,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:56:11 BoogieIcfgContainer [2021-11-03 04:56:11,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:56:11,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:56:11,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:56:11,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:56:11,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:56:10" (1/3) ... [2021-11-03 04:56:11,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e62f1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:56:11, skipping insertion in model container [2021-11-03 04:56:11,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:56:10" (2/3) ... [2021-11-03 04:56:11,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e62f1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:56:11, skipping insertion in model container [2021-11-03 04:56:11,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:56:11" (3/3) ... [2021-11-03 04:56:11,827 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-2.i [2021-11-03 04:56:11,832 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:56:11,832 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-03 04:56:11,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:56:11,883 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 [2021-11-03 04:56:11,884 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-03 04:56:11,897 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) [2021-11-03 04:56:11,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 04:56:11,902 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:11,903 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:11,903 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:11,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:11,909 INFO L85 PathProgramCache]: Analyzing trace with hash -954795863, now seen corresponding path program 1 times [2021-11-03 04:56:11,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:11,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098413964] [2021-11-03 04:56:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:11,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:11,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:11,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:11,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:56:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:12,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:56:12,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:12,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:12,213 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:12,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098413964] [2021-11-03 04:56:12,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098413964] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:12,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:12,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:56:12,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868243787] [2021-11-03 04:56:12,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:56:12,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:12,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:56:12,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:56:12,238 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) [2021-11-03 04:56:12,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:12,266 INFO L93 Difference]: Finished difference Result 117 states and 163 transitions. [2021-11-03 04:56:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:56:12,267 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 [2021-11-03 04:56:12,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:12,281 INFO L225 Difference]: With dead ends: 117 [2021-11-03 04:56:12,281 INFO L226 Difference]: Without dead ends: 56 [2021-11-03 04:56:12,285 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 [2021-11-03 04:56:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-03 04:56:12,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-03 04:56:12,316 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) [2021-11-03 04:56:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2021-11-03 04:56:12,318 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 11 [2021-11-03 04:56:12,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:12,318 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-11-03 04:56:12,319 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) [2021-11-03 04:56:12,319 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2021-11-03 04:56:12,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 04:56:12,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:12,320 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:12,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:12,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:12,527 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:12,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:12,530 INFO L85 PathProgramCache]: Analyzing trace with hash -964954594, now seen corresponding path program 1 times [2021-11-03 04:56:12,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:12,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140766240] [2021-11-03 04:56:12,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:12,536 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:12,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:12,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:12,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:56:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:12,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:56:12,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:12,884 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 [2021-11-03 04:56:12,893 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 [2021-11-03 04:56:12,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:12,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:13,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:13,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140766240] [2021-11-03 04:56:13,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140766240] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:13,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:13,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 04:56:13,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033459682] [2021-11-03 04:56:13,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:56:13,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:13,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:56:13,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:56:13,037 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) [2021-11-03 04:56:13,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:13,967 INFO L93 Difference]: Finished difference Result 116 states and 139 transitions. [2021-11-03 04:56:13,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:56:13,972 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 [2021-11-03 04:56:13,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:13,974 INFO L225 Difference]: With dead ends: 116 [2021-11-03 04:56:13,974 INFO L226 Difference]: Without dead ends: 70 [2021-11-03 04:56:13,975 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:56:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-03 04:56:13,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 61. [2021-11-03 04:56:13,983 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) [2021-11-03 04:56:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2021-11-03 04:56:13,984 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 11 [2021-11-03 04:56:13,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:13,984 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2021-11-03 04:56:13,985 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) [2021-11-03 04:56:13,985 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2021-11-03 04:56:13,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 04:56:13,986 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:13,986 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:14,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 04:56:14,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:14,199 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:14,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:14,200 INFO L85 PathProgramCache]: Analyzing trace with hash 195081255, now seen corresponding path program 1 times [2021-11-03 04:56:14,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:14,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025214836] [2021-11-03 04:56:14,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:14,201 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:14,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:14,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:14,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:56:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:14,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-03 04:56:14,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:14,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:56:14,752 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:14,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025214836] [2021-11-03 04:56:14,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025214836] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:14,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:14,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:56:14,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257335309] [2021-11-03 04:56:14,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:56:14,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:14,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:56:14,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:56:14,755 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) [2021-11-03 04:56:15,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:15,438 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2021-11-03 04:56:15,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:56:15,443 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 [2021-11-03 04:56:15,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:15,444 INFO L225 Difference]: With dead ends: 70 [2021-11-03 04:56:15,445 INFO L226 Difference]: Without dead ends: 60 [2021-11-03 04:56:15,445 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 [2021-11-03 04:56:15,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-03 04:56:15,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2021-11-03 04:56:15,452 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) [2021-11-03 04:56:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2021-11-03 04:56:15,453 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 13 [2021-11-03 04:56:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:15,454 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2021-11-03 04:56:15,454 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) [2021-11-03 04:56:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2021-11-03 04:56:15,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 04:56:15,455 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:15,455 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:15,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:15,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:15,672 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:15,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:15,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1411368152, now seen corresponding path program 1 times [2021-11-03 04:56:15,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:15,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127670221] [2021-11-03 04:56:15,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:15,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:15,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:15,675 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:15,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:56:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:15,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:56:15,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 04:56:15,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:56:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 04:56:15,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:56:15,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127670221] [2021-11-03 04:56:15,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127670221] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:56:15,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:56:15,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:56:15,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256912888] [2021-11-03 04:56:15,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:56:15,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:56:15,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:56:15,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:56:15,941 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) [2021-11-03 04:56:16,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:56:16,031 INFO L93 Difference]: Finished difference Result 91 states and 106 transitions. [2021-11-03 04:56:16,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:56:16,032 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 [2021-11-03 04:56:16,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:56:16,033 INFO L225 Difference]: With dead ends: 91 [2021-11-03 04:56:16,033 INFO L226 Difference]: Without dead ends: 89 [2021-11-03 04:56:16,033 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 [2021-11-03 04:56:16,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-03 04:56:16,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 59. [2021-11-03 04:56:16,040 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) [2021-11-03 04:56:16,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2021-11-03 04:56:16,042 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 17 [2021-11-03 04:56:16,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:56:16,042 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2021-11-03 04:56:16,042 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) [2021-11-03 04:56:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2021-11-03 04:56:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 04:56:16,043 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:56:16,057 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:56:16,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:56:16,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:56:16,258 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:56:16,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:56:16,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1409759438, now seen corresponding path program 1 times [2021-11-03 04:56:16,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:56:16,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885567941] [2021-11-03 04:56:16,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:56:16,260 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:56:16,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:56:16,261 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:56:16,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:56:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:56:16,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-03 04:56:16,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:56:16,556 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 [2021-11-03 04:56:18,136 INFO L354 Elim1Store]: treesize reduction 478, result has 9.3 percent of original size [2021-11-03 04:56:18,137 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 [2021-11-03 04:56:33,400 WARN L207 SmtUtils]: Spent 15.25 s on a formula simplification. DAG size of input: 82 DAG size of output: 38 [2021-11-03 04:56:33,401 INFO L354 Elim1Store]: treesize reduction 393, result has 20.0 percent of original size [2021-11-03 04:56:33,402 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 [2021-11-03 04:57:02,424 INFO L354 Elim1Store]: treesize reduction 214, result has 8.5 percent of original size [2021-11-03 04:57:02,425 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 [2021-11-03 04:57:02,789 INFO L354 Elim1Store]: treesize reduction 188, result has 23.0 percent of original size [2021-11-03 04:57:02,790 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 [2021-11-03 04:57:03,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:03,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:17,283 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$.offset| .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse1 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse1 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse0 |c_~#drvlist~0.base| (store (select .cse0 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= (select (select (let ((.cse3 (let ((.cse5 (select (select |c_#memory_$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_~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_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_~ptr~0.base))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|))) is different from false [2021-11-03 04:57:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:57:18,135 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:57:18,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885567941] [2021-11-03 04:57:18,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885567941] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:57:18,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [568741507] [2021-11-03 04:57:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:18,136 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:57:18,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:57:18,142 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:57:18,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-03 04:57:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:18,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-03 04:57:18,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:18,609 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 [2021-11-03 04:57:19,924 INFO L354 Elim1Store]: treesize reduction 336, result has 8.9 percent of original size [2021-11-03 04:57:19,925 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 [2021-11-03 04:57:19,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:57:19,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:57:21,958 INFO L354 Elim1Store]: treesize reduction 615, result has 18.2 percent of original size [2021-11-03 04:57:21,959 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 [2021-11-03 04:58:04,370 INFO L354 Elim1Store]: treesize reduction 204, result has 13.6 percent of original size [2021-11-03 04:58:04,370 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 [2021-11-03 04:58:04,670 INFO L354 Elim1Store]: treesize reduction 160, result has 31.0 percent of original size [2021-11-03 04:58:04,671 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 [2021-11-03 04:58:05,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:05,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:39,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:39,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [568741507] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:58:39,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89663106] [2021-11-03 04:58:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:39,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:58:39,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:58:39,943 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:58:39,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 04:58:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:40,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 04:58:40,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:40,349 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-03 04:58:40,350 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 [2021-11-03 04:58:41,383 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-03 04:58:41,384 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 [2021-11-03 04:58:42,431 INFO L354 Elim1Store]: treesize reduction 478, result has 9.3 percent of original size [2021-11-03 04:58:42,432 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 [2021-11-03 04:58:42,587 INFO L354 Elim1Store]: treesize reduction 412, result has 8.2 percent of original size [2021-11-03 04:58:42,588 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 [2021-11-03 04:58:43,980 INFO L354 Elim1Store]: treesize reduction 231, result has 1.3 percent of original size [2021-11-03 04:58:43,980 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 [2021-11-03 04:58:44,037 INFO L354 Elim1Store]: treesize reduction 171, result has 1.7 percent of original size [2021-11-03 04:58:44,037 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 [2021-11-03 04:58:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:44,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:46,324 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= (select (select (let ((.cse0 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) |c_ULTIMATE.start_ldv_successful_malloc_#res.base|)))) (store .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_7 .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) |c_~#drvlist~0.base|)))))) (store .cse0 |c_~#drvlist~0.base| (store (select .cse0 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse3 (let ((.cse4 (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse5 (store (select |c_#memory_$Pointer$.offset| .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) v_ULTIMATE.start___ldv_list_add_~new.offset_7))))) (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_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 .cse3 |c_~#drvlist~0.base| (store (select .cse3 |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|)))) is different from false [2021-11-03 04:59:15,167 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9 (_ BitVec 32))) (or (and (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= (select (select (let ((.cse0 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9)))) (store .cse1 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9 (store (store (select .cse1 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9) v_ULTIMATE.start___ldv_list_add_~new.offset_7 .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) |c_~#drvlist~0.base|)))))) (store .cse0 |c_~#drvlist~0.base| (store (select .cse0 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse3 (let ((.cse4 (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse5 (store (select |c_#memory_$Pointer$.offset| .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) v_ULTIMATE.start___ldv_list_add_~new.offset_7))))) (store .cse4 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9 (store (store (select .cse4 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 .cse3 |c_~#drvlist~0.base| (store (select .cse3 |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)))))))) is different from false [2021-11-03 04:59:15,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-03 04:59:15,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89663106] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:59:15,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:59:15,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 26 [2021-11-03 04:59:15,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515217469] [2021-11-03 04:59:15,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-03 04:59:15,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:59:15,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-03 04:59:15,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=445, Unknown=28, NotChecked=138, Total=702 [2021-11-03 04:59:15,584 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) [2021-11-03 04:59:53,192 WARN L207 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2021-11-03 05:01:05,470 WARN L207 SmtUtils]: Spent 1.08 m on a formula simplification. DAG size of input: 236 DAG size of output: 231 [2021-11-03 05:02:52,718 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base|))) (and (= c_ULTIMATE.start_ldv_is_in_set_~m~1.base c_ULTIMATE.start_ldv_is_in_set_~s.base) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse0 |c_~#drvlist~0.base| (store (select .cse0 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (= |c_~#mutexes~0.offset| (_ bv0 32)) (= |c_~#mutexes~0.offset| (select .cse3 (bvadd |c_~#mutexes~0.offset| (_ bv4 32)))) (exists ((|#StackHeapBarrier| (_ BitVec 32))) (and (not (= |#StackHeapBarrier| (_ bv0 32))) (bvult |#StackHeapBarrier| c_ULTIMATE.start_ldv_is_in_set_~s.base))) (exists ((|#StackHeapBarrier| (_ BitVec 32)) (ULTIMATE.start___ldv_list_add_~new.offset (_ BitVec 32)) (|ULTIMATE.start_ldv_successful_malloc_#res.base| (_ BitVec 32))) (let ((.cse19 (select |c_#memory_$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$.offset| .cse13)) (.cse12 (bvadd (_ bv4 32) .cse8))) (let ((.cse5 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse14 .cse12))) (.cse7 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse16 .cse12))) (.cse4 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse14 .cse17))) (.cse6 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse16 .cse17))) (.cse10 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse14 .cse15))) (.cse9 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| .cse13))) (or (and .cse4 .cse5 .cse6 .cse7) (and .cse4 (= ULTIMATE.start___ldv_list_add_~new.offset .cse8) .cse6 .cse9) (and .cse10 .cse5 .cse9 .cse7) (and (let ((.cse11 (= ULTIMATE.start___ldv_list_add_~new.offset .cse12))) (or (and .cse4 .cse11 .cse6) (and .cse11 .cse10))) .cse9)))))) (bvult |#StackHeapBarrier| |c_~#mutexes~0.base|) (not (= .cse13 |c_~#mutexes~0.base|)) (bvult |ULTIMATE.start_ldv_successful_malloc_#res.base| |#StackHeapBarrier|) (= (select .cse19 ULTIMATE.start___ldv_list_add_~new.offset) .cse13))))) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse20 (let ((.cse21 (let ((.cse22 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse22 (store (select |c_#memory_$Pointer$.offset| .cse22) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) v_ULTIMATE.start___ldv_list_add_~new.offset_7))))) (store .cse21 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse21 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_7 v_ULTIMATE.start___ldv_list_add_~next.offset_7) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) v_ULTIMATE.start___ldv_list_add_~prev.offset_7))))) (store .cse20 |c_~#drvlist~0.base| (store (select .cse20 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 v_ULTIMATE.start___ldv_list_add_~new.offset_7))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (= |c_~#mutexes~0.offset| (select .cse3 |c_~#mutexes~0.offset|)) (= (select (select |c_#memory_$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$.offset| .cse36) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse35 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 (store (store (select .cse35 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse34 |c_~#drvlist~0.base| (store (select .cse34 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (not (bvult v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 |c_#StackHeapBarrier|)))) (= (bvadd (_ bv4 32) c_ULTIMATE.start_ldv_is_in_set_~m~1.offset) (_ bv0 32)) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~prev.offset_7 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_7 (_ BitVec 32))) (= (select (select (let ((.cse37 (let ((.cse39 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse38 (store |c_#memory_$Pointer$.base| .cse39 (store (select |c_#memory_$Pointer$.base| .cse39) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_7) c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base)))) (store .cse38 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse38 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_7 .cse39) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_7) |c_~#drvlist~0.base|)))))) (store .cse37 |c_~#drvlist~0.base| (store (select .cse37 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_7 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (forall ((v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 (_ BitVec 32))) (or (and (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= (select (select (let ((.cse40 (let ((.cse42 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse41 (store |c_#memory_$Pointer$.base| .cse42 (store (select |c_#memory_$Pointer$.base| .cse42) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8)))) (store .cse41 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 (store (store (select .cse41 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8) v_ULTIMATE.start___ldv_list_add_~new.offset_6 .cse42) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.base|)))))) (store .cse40 |c_~#drvlist~0.base| (store (select .cse40 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse43 (let ((.cse44 (let ((.cse45 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse45 (store (select |c_#memory_$Pointer$.offset| .cse45) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) v_ULTIMATE.start___ldv_list_add_~new.offset_6))))) (store .cse44 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 (store (store (select .cse44 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8) v_ULTIMATE.start___ldv_list_add_~new.offset_6 v_ULTIMATE.start___ldv_list_add_~next.offset_6) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.offset|))))) (store .cse43 |c_~#drvlist~0.base| (store (select .cse43 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| v_ULTIMATE.start___ldv_list_add_~new.offset_6))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (not (bvult v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 |c_#StackHeapBarrier|)))) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= (select (select (let ((.cse46 (let ((.cse48 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse47 (store |c_#memory_$Pointer$.base| .cse48 (store (select |c_#memory_$Pointer$.base| .cse48) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) |c_ULTIMATE.start_ldv_successful_malloc_#res.base|)))) (store .cse47 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse47 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_5 .cse48) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) |c_~#drvlist~0.base|)))))) (store .cse46 |c_~#drvlist~0.base| (store (select .cse46 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (exists ((|#StackHeapBarrier| (_ BitVec 32)) (ULTIMATE.start___ldv_list_add_~new.offset (_ BitVec 32)) (|ULTIMATE.start_ldv_successful_malloc_#res.base| (_ BitVec 32))) (let ((.cse53 (select |c_#memory_$Pointer$.base| |ULTIMATE.start_ldv_successful_malloc_#res.base|)) (.cse51 (bvadd ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32)))) (let ((.cse54 (select .cse53 .cse51))) (let ((.cse50 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| .cse54)) (.cse55 (select |c_#memory_$Pointer$.base| .cse54)) (.cse49 (select |c_#memory_$Pointer$.offset| .cse54)) (.cse52 (select |c_#memory_$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 .cse49 (_ bv0 32))) (or (and .cse50 (= .cse51 (_ bv0 32))) (= (select .cse52 .cse51) (_ bv0 32))) (= (select .cse53 ULTIMATE.start___ldv_list_add_~new.offset) .cse54) (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse55 (_ bv0 32))) (let ((.cse56 (select .cse52 ULTIMATE.start___ldv_list_add_~new.offset))) (let ((.cse58 (bvadd (_ bv4 32) .cse56))) (let ((.cse57 (select .cse49 (_ bv4 32))) (.cse60 (= ULTIMATE.start___ldv_list_add_~new.offset .cse56)) (.cse59 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse49 .cse58))) (.cse61 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse55 .cse58)))) (or (and (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse55 (_ bv4 32))) (= .cse56 (_ bv0 32)) (= ULTIMATE.start___ldv_list_add_~new.offset .cse57)) (and (= .cse57 (_ bv0 32)) (or (and (= ULTIMATE.start___ldv_list_add_~new.offset .cse58) .cse50) .cse59 (and .cse60 .cse50)) .cse61) (and (or .cse60 .cse59) (= ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32)) .cse50 .cse61)))))))))) (= c_ULTIMATE.start_ldv_is_in_set_~s.offset (_ bv0 32)))) is different from false [2021-11-03 05:04:03,791 WARN L207 SmtUtils]: Spent 30.37 s on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-11-03 05:05:08,381 WARN L207 SmtUtils]: Spent 47.43 s on a formula simplification. DAG size of input: 170 DAG size of output: 165 [2021-11-03 05:06:29,310 WARN L207 SmtUtils]: Spent 50.23 s on a formula simplification. DAG size of input: 183 DAG size of output: 178 [2021-11-03 05:07:31,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:07:31,947 INFO L93 Difference]: Finished difference Result 197 states and 230 transitions. [2021-11-03 05:07:31,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 05:07:31,954 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 [2021-11-03 05:07:31,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:07:31,956 INFO L225 Difference]: With dead ends: 197 [2021-11-03 05:07:31,956 INFO L226 Difference]: Without dead ends: 149 [2021-11-03 05:07:31,958 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 406.9s TimeCoverageRelationStatistics Valid=188, Invalid=769, Unknown=51, NotChecked=252, Total=1260 [2021-11-03 05:07:31,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-03 05:07:31,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 85. [2021-11-03 05:07:31,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 82 states have (on average 1.2317073170731707) internal successors, (101), 84 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) [2021-11-03 05:07:31,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 101 transitions. [2021-11-03 05:07:31,975 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 101 transitions. Word has length 17 [2021-11-03 05:07:31,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:07:31,976 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 101 transitions. [2021-11-03 05:07:31,976 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) [2021-11-03 05:07:31,976 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 101 transitions. [2021-11-03 05:07:31,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-03 05:07:31,977 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:07:31,978 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:07:31,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:07:32,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:07:32,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-03 05:07:32,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:07:32,586 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:07:32,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:07:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash 688381617, now seen corresponding path program 1 times [2021-11-03 05:07:32,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:07:32,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251348398] [2021-11-03 05:07:32,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:07:32,587 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:07:32,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:07:32,588 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:07:32,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:07:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:32,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 05:07:32,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:33,074 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-03 05:07:33,074 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 [2021-11-03 05:07:33,494 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:07:33,494 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 [2021-11-03 05:07:34,722 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-03 05:07:34,722 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 [2021-11-03 05:07:35,151 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-03 05:07:35,152 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 [2021-11-03 05:07:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:35,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:07:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:35,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:07:35,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251348398] [2021-11-03 05:07:35,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251348398] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:07:35,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1414696487] [2021-11-03 05:07:35,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:07:35,416 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:07:35,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:07:35,421 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:07:35,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-03 05:07:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:35,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-03 05:07:35,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:35,844 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 [2021-11-03 05:07:36,055 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-03 05:07:36,056 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 [2021-11-03 05:07:36,601 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:07:36,601 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 [2021-11-03 05:07:38,812 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-03 05:07:38,813 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 [2021-11-03 05:07:39,235 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-03 05:07:39,236 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 [2021-11-03 05:07:39,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:39,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:07:39,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:39,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1414696487] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:07:39,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781506435] [2021-11-03 05:07:39,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:07:39,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:07:39,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:07:39,388 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:07:39,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 05:07:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:39,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 05:07:39,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:39,909 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-03 05:07:39,909 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 [2021-11-03 05:07:40,280 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:07:40,280 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 [2021-11-03 05:07:42,098 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-03 05:07:42,098 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 [2021-11-03 05:07:42,468 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-03 05:07:42,469 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 [2021-11-03 05:07:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:42,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:07:42,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:42,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781506435] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:07:42,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:07:42,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 11 [2021-11-03 05:07:42,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321704662] [2021-11-03 05:07:42,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:07:42,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:07:42,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:07:42,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:07:42,650 INFO L87 Difference]: Start difference. First operand 85 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) [2021-11-03 05:07:46,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:07:46,573 INFO L93 Difference]: Finished difference Result 156 states and 186 transitions. [2021-11-03 05:07:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 05:07:46,575 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 [2021-11-03 05:07:46,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:07:46,576 INFO L225 Difference]: With dead ends: 156 [2021-11-03 05:07:46,576 INFO L226 Difference]: Without dead ends: 130 [2021-11-03 05:07:46,577 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 [2021-11-03 05:07:46,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-03 05:07:46,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 83. [2021-11-03 05:07:46,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 80 states have (on average 1.2) internal successors, (96), 82 states have internal predecessors, (96), 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) [2021-11-03 05:07:46,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2021-11-03 05:07:46,608 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 96 transitions. Word has length 19 [2021-11-03 05:07:46,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:07:46,609 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 96 transitions. [2021-11-03 05:07:46,609 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) [2021-11-03 05:07:46,609 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 96 transitions. [2021-11-03 05:07:46,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 05:07:46,611 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:07:46,611 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:07:46,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:07:46,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:07:47,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:07:47,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:07:47,218 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:07:47,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:07:47,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1500077370, now seen corresponding path program 2 times [2021-11-03 05:07:47,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:07:47,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227579006] [2021-11-03 05:07:47,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:07:47,219 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:07:47,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:07:47,220 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:07:47,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b352fa3c-c253-40d6-a034-726ebcb03ab9/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:07:47,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:07:47,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:07:47,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 76 conjunts are in the unsatisfiable core [2021-11-03 05:07:47,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:47,791 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 [2021-11-03 05:07:56,400 WARN L207 SmtUtils]: Spent 7.96 s on a formula simplification. DAG size of input: 83 DAG size of output: 25 [2021-11-03 05:07:56,400 INFO L354 Elim1Store]: treesize reduction 304, result has 9.8 percent of original size [2021-11-03 05:07:56,401 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 255 treesize of output 140 [2021-11-03 05:07:57,746 INFO L354 Elim1Store]: treesize reduction 429, result has 21.3 percent of original size [2021-11-03 05:07:57,746 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 232 treesize of output 193 [2021-11-03 05:08:16,427 WARN L207 SmtUtils]: Spent 15.10 s on a formula simplification. DAG size of input: 196 DAG size of output: 72 [2021-11-03 05:08:16,428 INFO L354 Elim1Store]: treesize reduction 995, result has 14.4 percent of original size [2021-11-03 05:08:16,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 464 treesize of output 375 [2021-11-03 05:09:04,766 WARN L207 SmtUtils]: Spent 48.32 s on a formula simplification. DAG size of input: 182 DAG size of output: 97 [2021-11-03 05:09:04,767 INFO L354 Elim1Store]: treesize reduction 773, result has 27.6 percent of original size [2021-11-03 05:09:04,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 402 treesize of output 537