./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e559d44f6ee539bed570b1939999945f6f48ca1506c283f526f35c026a08bf8f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:32:40,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:32:40,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:32:40,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:32:40,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:32:40,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:32:40,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:32:40,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:32:40,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:32:40,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:32:40,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:32:40,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:32:40,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:32:40,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:32:40,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:32:40,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:32:40,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:32:40,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:32:40,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:32:40,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:32:40,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:32:40,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:32:40,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:32:40,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:32:40,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:32:40,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:32:40,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:32:40,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:32:40,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:32:40,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:32:40,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:32:40,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:32:40,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:32:40,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:32:40,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:32:40,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:32:40,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:32:40,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:32:40,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:32:40,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:32:40,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:32:40,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:32:40,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:32:40,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:32:40,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:32:40,731 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:32:40,731 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:32:40,731 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:32:40,732 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:32:40,732 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:32:40,740 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:32:40,740 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:32:40,741 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:32:40,742 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:32:40,742 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:32:40,742 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:32:40,743 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:32:40,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:32:40,744 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:32:40,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:32:40,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:32:40,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:32:40,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:32:40,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:32:40,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:32:40,746 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:32:40,746 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:32:40,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:32:40,746 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:32:40,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:32:40,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:32:40,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:32:40,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:32:40,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:32:40,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:32:40,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:32:40,751 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:32:40,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:32:40,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:32:40,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:32:40,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:32:40,752 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_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e559d44f6ee539bed570b1939999945f6f48ca1506c283f526f35c026a08bf8f [2021-11-07 01:32:41,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:32:41,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:32:41,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:32:41,163 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:32:41,164 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:32:41,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c [2021-11-07 01:32:41,277 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data/f9f9eddca/ee3bd3946235443eba16f10779ed4c31/FLAG85f1d7c84 [2021-11-07 01:32:42,057 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:32:42,060 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c [2021-11-07 01:32:42,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data/f9f9eddca/ee3bd3946235443eba16f10779ed4c31/FLAG85f1d7c84 [2021-11-07 01:32:42,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data/f9f9eddca/ee3bd3946235443eba16f10779ed4c31 [2021-11-07 01:32:42,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:32:42,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:32:42,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:42,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:32:42,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:32:42,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:42" (1/1) ... [2021-11-07 01:32:42,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df8b547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:42, skipping insertion in model container [2021-11-07 01:32:42,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:42" (1/1) ... [2021-11-07 01:32:42,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:32:42,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:32:42,804 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_d2dab365-5bd0-41c5-b897-af317b0561c7/sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c[75833,75846] [2021-11-07 01:32:42,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:32:42,846 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:32:42,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1197dfaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:42, skipping insertion in model container [2021-11-07 01:32:42,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:42,847 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:32:42,850 INFO L168 Benchmark]: Toolchain (without parser) took 633.24 ms. Allocated memory is still 140.5 MB. Free memory was 105.8 MB in the beginning and 106.1 MB in the end (delta: -376.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:32:42,851 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 92.3 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:32:42,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.35 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 106.1 MB in the end (delta: -721.6 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:32:42,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 92.3 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 621.35 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 106.1 MB in the end (delta: -721.6 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1050]: 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_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e559d44f6ee539bed570b1939999945f6f48ca1506c283f526f35c026a08bf8f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:32:45,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:32:45,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:32:45,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:32:45,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:32:45,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:32:45,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:32:45,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:32:45,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:32:45,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:32:45,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:32:45,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:32:45,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:32:45,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:32:45,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:32:45,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:32:45,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:32:45,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:32:45,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:32:45,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:32:45,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:32:45,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:32:45,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:32:45,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:32:45,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:32:45,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:32:45,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:32:45,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:32:45,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:32:45,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:32:45,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:32:45,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:32:45,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:32:45,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:32:45,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:32:45,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:32:45,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:32:45,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:32:45,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:32:45,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:32:45,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:32:45,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:32:45,628 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:32:45,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:32:45,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:32:45,634 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:32:45,634 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:32:45,634 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:32:45,634 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:32:45,634 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:32:45,635 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:32:45,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:32:45,638 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:32:45,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:32:45,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:32:45,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:32:45,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:32:45,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:32:45,639 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:32:45,639 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:32:45,640 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:32:45,640 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:32:45,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:32:45,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:32:45,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:32:45,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:32:45,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:32:45,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:32:45,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:32:45,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:32:45,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:32:45,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:32:45,643 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:32:45,643 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:32:45,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:32:45,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:32:45,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:32:45,645 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_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e559d44f6ee539bed570b1939999945f6f48ca1506c283f526f35c026a08bf8f [2021-11-07 01:32:46,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:32:46,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:32:46,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:32:46,106 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:32:46,107 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:32:46,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c [2021-11-07 01:32:46,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data/40ed13f93/7ebc5b5bf19a480591754951ccd639e5/FLAG0605241f0 [2021-11-07 01:32:47,092 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:32:47,092 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c [2021-11-07 01:32:47,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data/40ed13f93/7ebc5b5bf19a480591754951ccd639e5/FLAG0605241f0 [2021-11-07 01:32:47,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/data/40ed13f93/7ebc5b5bf19a480591754951ccd639e5 [2021-11-07 01:32:47,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:32:47,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:32:47,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:47,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:32:47,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:32:47,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:47" (1/1) ... [2021-11-07 01:32:47,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d872a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:47, skipping insertion in model container [2021-11-07 01:32:47,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:47" (1/1) ... [2021-11-07 01:32:47,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:32:47,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:32:47,891 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_d2dab365-5bd0-41c5-b897-af317b0561c7/sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c[75833,75846] [2021-11-07 01:32:47,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:32:47,924 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:32:47,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:32:48,147 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c[75833,75846] [2021-11-07 01:32:48,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:32:48,160 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:32:48,350 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_d2dab365-5bd0-41c5-b897-af317b0561c7/sv-benchmarks/c/openssl/s3_srvr.blast.15.i.cil-2.c[75833,75846] [2021-11-07 01:32:48,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:32:48,390 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:32:48,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48 WrapperNode [2021-11-07 01:32:48,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:48,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:32:48,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:32:48,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:32:48,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:32:48,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:32:48,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:32:48,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:32:48,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:32:48,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:32:48,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:32:48,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:32:48,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (1/1) ... [2021-11-07 01:32:48,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:32:48,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:32:48,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:32:48,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:32:48,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:32:48,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:32:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:32:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:32:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:32:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:32:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:32:48,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:32:48,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:32:49,060 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 01:33:00,425 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-07 01:33:00,425 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-07 01:33:00,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:33:00,436 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 01:33:00,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:00 BoogieIcfgContainer [2021-11-07 01:33:00,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:33:00,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:33:00,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:33:00,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:33:00,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:32:47" (1/3) ... [2021-11-07 01:33:00,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794b7dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:00, skipping insertion in model container [2021-11-07 01:33:00,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:48" (2/3) ... [2021-11-07 01:33:00,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794b7dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:00, skipping insertion in model container [2021-11-07 01:33:00,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:00" (3/3) ... [2021-11-07 01:33:00,450 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-2.c [2021-11-07 01:33:00,457 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:33:00,457 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:33:00,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:33:00,543 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:33:00,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:33:00,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 152 states have (on average 1.7236842105263157) internal successors, (262), 153 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:00,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 01:33:00,574 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:00,575 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:00,576 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:00,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:00,582 INFO L85 PathProgramCache]: Analyzing trace with hash 983008807, now seen corresponding path program 1 times [2021-11-07 01:33:00,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:00,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648056466] [2021-11-07 01:33:00,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:00,600 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:00,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:00,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:00,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:33:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:00,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:33:00,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:01,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:01,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:01,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:01,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648056466] [2021-11-07 01:33:01,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648056466] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:01,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:01,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:33:01,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633393961] [2021-11-07 01:33:01,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:33:01,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:01,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:33:01,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:01,602 INFO L87 Difference]: Start difference. First operand has 154 states, 152 states have (on average 1.7236842105263157) internal successors, (262), 153 states have internal predecessors, (262), 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 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:01,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:01,919 INFO L93 Difference]: Finished difference Result 578 states and 992 transitions. [2021-11-07 01:33:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:33:01,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 46 [2021-11-07 01:33:01,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:01,939 INFO L225 Difference]: With dead ends: 578 [2021-11-07 01:33:01,940 INFO L226 Difference]: Without dead ends: 395 [2021-11-07 01:33:01,944 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:01,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-11-07 01:33:02,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2021-11-07 01:33:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 394 states have (on average 1.532994923857868) internal successors, (604), 394 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:02,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 604 transitions. [2021-11-07 01:33:02,047 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 604 transitions. Word has length 46 [2021-11-07 01:33:02,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:02,048 INFO L470 AbstractCegarLoop]: Abstraction has 395 states and 604 transitions. [2021-11-07 01:33:02,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 604 transitions. [2021-11-07 01:33:02,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-07 01:33:02,057 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:02,057 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:02,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:02,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:02,271 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:02,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:02,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1606020589, now seen corresponding path program 1 times [2021-11-07 01:33:02,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:02,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638603860] [2021-11-07 01:33:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:02,283 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:02,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:02,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:02,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:33:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:02,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:33:02,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:03,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:03,516 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:03,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638603860] [2021-11-07 01:33:03,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638603860] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:03,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:03,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:33:03,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527506004] [2021-11-07 01:33:03,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:33:03,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:03,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:33:03,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:03,521 INFO L87 Difference]: Start difference. First operand 395 states and 604 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:04,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:04,215 INFO L93 Difference]: Finished difference Result 904 states and 1402 transitions. [2021-11-07 01:33:04,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:33:04,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 109 [2021-11-07 01:33:04,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:04,221 INFO L225 Difference]: With dead ends: 904 [2021-11-07 01:33:04,222 INFO L226 Difference]: Without dead ends: 647 [2021-11-07 01:33:04,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2021-11-07 01:33:04,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 647. [2021-11-07 01:33:04,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 646 states have (on average 1.5247678018575852) internal successors, (985), 646 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 985 transitions. [2021-11-07 01:33:04,273 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 985 transitions. Word has length 109 [2021-11-07 01:33:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:04,274 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 985 transitions. [2021-11-07 01:33:04,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:04,275 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 985 transitions. [2021-11-07 01:33:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-07 01:33:04,285 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:04,285 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:04,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 01:33:04,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:04,500 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:04,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:04,500 INFO L85 PathProgramCache]: Analyzing trace with hash 349080117, now seen corresponding path program 1 times [2021-11-07 01:33:04,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:04,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482714445] [2021-11-07 01:33:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:04,503 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:04,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:04,506 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:04,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:33:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:04,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:33:04,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-07 01:33:05,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:06,148 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-07 01:33:06,149 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:06,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482714445] [2021-11-07 01:33:06,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482714445] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:06,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:06,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:33:06,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895022263] [2021-11-07 01:33:06,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:33:06,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:06,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:33:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:33:06,152 INFO L87 Difference]: Start difference. First operand 647 states and 985 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:06,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:06,654 INFO L93 Difference]: Finished difference Result 1280 states and 1961 transitions. [2021-11-07 01:33:06,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:33:06,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 175 [2021-11-07 01:33:06,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:06,661 INFO L225 Difference]: With dead ends: 1280 [2021-11-07 01:33:06,661 INFO L226 Difference]: Without dead ends: 771 [2021-11-07 01:33:06,663 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:33:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2021-11-07 01:33:06,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 771. [2021-11-07 01:33:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 1.518181818181818) internal successors, (1169), 770 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:06,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1169 transitions. [2021-11-07 01:33:06,696 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1169 transitions. Word has length 175 [2021-11-07 01:33:06,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:06,697 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 1169 transitions. [2021-11-07 01:33:06,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:06,697 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1169 transitions. [2021-11-07 01:33:06,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-07 01:33:06,702 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:06,703 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:06,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:06,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:06,919 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:06,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:06,919 INFO L85 PathProgramCache]: Analyzing trace with hash -699698266, now seen corresponding path program 1 times [2021-11-07 01:33:06,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:06,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538687551] [2021-11-07 01:33:06,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:06,921 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:06,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:06,922 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:06,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:33:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:07,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:33:07,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-07 01:33:08,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:08,758 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-07 01:33:08,758 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:08,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538687551] [2021-11-07 01:33:08,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538687551] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:08,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:08,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:33:08,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548377384] [2021-11-07 01:33:08,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:33:08,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:08,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:33:08,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:08,761 INFO L87 Difference]: Start difference. First operand 771 states and 1169 transitions. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:09,403 INFO L93 Difference]: Finished difference Result 1654 states and 2527 transitions. [2021-11-07 01:33:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:33:09,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 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 216 [2021-11-07 01:33:09,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:09,412 INFO L225 Difference]: With dead ends: 1654 [2021-11-07 01:33:09,412 INFO L226 Difference]: Without dead ends: 1021 [2021-11-07 01:33:09,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:09,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2021-11-07 01:33:09,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2021-11-07 01:33:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1020 states have (on average 1.5166666666666666) internal successors, (1547), 1020 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1547 transitions. [2021-11-07 01:33:09,457 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1547 transitions. Word has length 216 [2021-11-07 01:33:09,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:09,458 INFO L470 AbstractCegarLoop]: Abstraction has 1021 states and 1547 transitions. [2021-11-07 01:33:09,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:09,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1547 transitions. [2021-11-07 01:33:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-07 01:33:09,463 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:09,463 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:09,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:09,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:09,678 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:09,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:09,679 INFO L85 PathProgramCache]: Analyzing trace with hash -2106120990, now seen corresponding path program 1 times [2021-11-07 01:33:09,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:09,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159434989] [2021-11-07 01:33:09,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:09,682 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:09,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:09,683 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:09,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:33:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:10,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:33:10,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-11-07 01:33:11,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:12,059 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-11-07 01:33:12,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:12,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159434989] [2021-11-07 01:33:12,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159434989] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:12,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:12,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:33:12,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633441411] [2021-11-07 01:33:12,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:33:12,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:12,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:33:12,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:33:12,062 INFO L87 Difference]: Start difference. First operand 1021 states and 1547 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:12,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:12,828 INFO L93 Difference]: Finished difference Result 2027 states and 3083 transitions. [2021-11-07 01:33:12,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:33:12,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 300 [2021-11-07 01:33:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:12,837 INFO L225 Difference]: With dead ends: 2027 [2021-11-07 01:33:12,837 INFO L226 Difference]: Without dead ends: 1144 [2021-11-07 01:33:12,839 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:33:12,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2021-11-07 01:33:12,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1144. [2021-11-07 01:33:12,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 1.5126859142607174) internal successors, (1729), 1143 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:12,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1729 transitions. [2021-11-07 01:33:12,899 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1729 transitions. Word has length 300 [2021-11-07 01:33:12,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:12,899 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1729 transitions. [2021-11-07 01:33:12,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1729 transitions. [2021-11-07 01:33:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-07 01:33:12,907 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:12,907 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:12,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:13,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:13,121 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:13,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:13,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1146342820, now seen corresponding path program 1 times [2021-11-07 01:33:13,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:13,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208431465] [2021-11-07 01:33:13,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:13,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:13,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:13,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:13,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:33:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:14,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:33:14,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:14,995 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-11-07 01:33:14,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:15,873 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-11-07 01:33:15,874 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:15,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208431465] [2021-11-07 01:33:15,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208431465] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:15,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:15,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:33:15,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006488647] [2021-11-07 01:33:15,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:33:15,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:15,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:33:15,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:15,877 INFO L87 Difference]: Start difference. First operand 1144 states and 1729 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:16,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:16,393 INFO L93 Difference]: Finished difference Result 2400 states and 3646 transitions. [2021-11-07 01:33:16,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:33:16,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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 339 [2021-11-07 01:33:16,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:16,404 INFO L225 Difference]: With dead ends: 2400 [2021-11-07 01:33:16,404 INFO L226 Difference]: Without dead ends: 1394 [2021-11-07 01:33:16,406 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 676 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:16,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-11-07 01:33:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-11-07 01:33:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.511127063890883) internal successors, (2105), 1393 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2105 transitions. [2021-11-07 01:33:16,469 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2105 transitions. Word has length 339 [2021-11-07 01:33:16,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:16,470 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 2105 transitions. [2021-11-07 01:33:16,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:16,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2105 transitions. [2021-11-07 01:33:16,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-11-07 01:33:16,480 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:16,480 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:16,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:16,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:16,696 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:16,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:16,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1795384531, now seen corresponding path program 1 times [2021-11-07 01:33:16,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:16,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558812212] [2021-11-07 01:33:16,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:16,699 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:16,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:16,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:16,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:33:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:17,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:33:17,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:18,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 1017 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-11-07 01:33:18,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 1017 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2021-11-07 01:33:20,015 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:20,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558812212] [2021-11-07 01:33:20,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558812212] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:20,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:20,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:33:20,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870483134] [2021-11-07 01:33:20,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:33:20,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:20,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:33:20,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:33:20,018 INFO L87 Difference]: Start difference. First operand 1394 states and 2105 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:21,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:21,010 INFO L93 Difference]: Finished difference Result 2774 states and 4200 transitions. [2021-11-07 01:33:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:33:21,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 426 [2021-11-07 01:33:21,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:21,022 INFO L225 Difference]: With dead ends: 2774 [2021-11-07 01:33:21,023 INFO L226 Difference]: Without dead ends: 1518 [2021-11-07 01:33:21,025 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 849 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:33:21,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2021-11-07 01:33:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1518. [2021-11-07 01:33:21,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 1.5082399472643375) internal successors, (2288), 1517 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:21,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2288 transitions. [2021-11-07 01:33:21,092 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2288 transitions. Word has length 426 [2021-11-07 01:33:21,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:21,094 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 2288 transitions. [2021-11-07 01:33:21,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2288 transitions. [2021-11-07 01:33:21,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-11-07 01:33:21,106 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:21,106 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:21,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:21,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:21,322 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:21,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:21,322 INFO L85 PathProgramCache]: Analyzing trace with hash -483119247, now seen corresponding path program 1 times [2021-11-07 01:33:21,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:21,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600295542] [2021-11-07 01:33:21,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:21,326 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:21,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:21,328 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:21,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:33:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:22,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:33:22,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 1211 proven. 0 refuted. 0 times theorem prover too weak. 725 trivial. 0 not checked. [2021-11-07 01:33:23,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:25,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 1211 proven. 0 refuted. 0 times theorem prover too weak. 725 trivial. 0 not checked. [2021-11-07 01:33:25,022 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:25,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600295542] [2021-11-07 01:33:25,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600295542] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:25,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:25,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:33:25,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587483802] [2021-11-07 01:33:25,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:33:25,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:25,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:33:25,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:25,026 INFO L87 Difference]: Start difference. First operand 1518 states and 2288 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:25,912 INFO L93 Difference]: Finished difference Result 3147 states and 4761 transitions. [2021-11-07 01:33:25,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:33:25,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 470 [2021-11-07 01:33:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:25,930 INFO L225 Difference]: With dead ends: 3147 [2021-11-07 01:33:25,930 INFO L226 Difference]: Without dead ends: 1767 [2021-11-07 01:33:25,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 936 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:33:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2021-11-07 01:33:25,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2021-11-07 01:33:25,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1766 states have (on average 1.506228765571914) internal successors, (2660), 1766 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2660 transitions. [2021-11-07 01:33:25,996 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2660 transitions. Word has length 470 [2021-11-07 01:33:25,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:25,996 INFO L470 AbstractCegarLoop]: Abstraction has 1767 states and 2660 transitions. [2021-11-07 01:33:25,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:25,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2660 transitions. [2021-11-07 01:33:26,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2021-11-07 01:33:26,021 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:26,022 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:26,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:26,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:26,244 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:26,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:26,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1059985507, now seen corresponding path program 1 times [2021-11-07 01:33:26,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:26,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99737] [2021-11-07 01:33:26,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:26,246 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:26,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:26,247 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:26,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:33:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:29,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:33:29,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:29,677 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 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:33:29,689 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 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:33:29,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:29,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:33:29,831 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:29,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 336 [2021-11-07 01:33:29,866 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 0 case distinctions, treesize of input 336 treesize of output 319 [2021-11-07 01:33:30,345 INFO L354 Elim1Store]: treesize reduction 1607, result has 2.8 percent of original size [2021-11-07 01:33:30,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 717 treesize of output 669 [2021-11-07 01:33:30,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:30,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:33:30,420 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 0 case distinctions, treesize of input 221 treesize of output 210 [2021-11-07 01:33:30,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 101 [2021-11-07 01:33:30,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-11-07 01:33:30,736 INFO L354 Elim1Store]: treesize reduction 340, result has 2.6 percent of original size [2021-11-07 01:33:30,737 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 62 treesize of output 13 [2021-11-07 01:33:30,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:30,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-11-07 01:33:30,847 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 37 treesize of output 25 [2021-11-07 01:33:30,858 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 22 treesize of output 10 [2021-11-07 01:33:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2752 trivial. 0 not checked. [2021-11-07 01:33:32,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:34,062 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:34,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-07 01:33:34,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:34,080 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-07 01:33:34,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:34,232 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 393 [2021-11-07 01:33:34,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:34,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 510 [2021-11-07 01:33:34,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:34,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 687 [2021-11-07 01:33:34,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:34,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 744 [2021-11-07 01:33:34,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:34,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 861 [2021-11-07 01:33:34,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:34,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1038 [2021-11-07 01:33:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2752 trivial. 0 not checked. [2021-11-07 01:33:34,806 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:33:34,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99737] [2021-11-07 01:33:34,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99737] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:33:34,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:33:34,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:33:34,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472068759] [2021-11-07 01:33:34,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:33:34,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:33:34,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:33:34,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:33:34,810 INFO L87 Difference]: Start difference. First operand 1767 states and 2660 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:56,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:56,173 INFO L93 Difference]: Finished difference Result 3531 states and 5316 transitions. [2021-11-07 01:33:56,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:33:56,175 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 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 553 [2021-11-07 01:33:56,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:56,186 INFO L225 Difference]: With dead ends: 3531 [2021-11-07 01:33:56,186 INFO L226 Difference]: Without dead ends: 1767 [2021-11-07 01:33:56,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1106 GetRequests, 1097 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:33:56,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2021-11-07 01:33:56,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2021-11-07 01:33:56,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1766 states have (on average 1.5056625141562854) internal successors, (2659), 1766 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2659 transitions. [2021-11-07 01:33:56,261 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2659 transitions. Word has length 553 [2021-11-07 01:33:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:56,262 INFO L470 AbstractCegarLoop]: Abstraction has 1767 states and 2659 transitions. [2021-11-07 01:33:56,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:56,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2659 transitions. [2021-11-07 01:33:56,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2021-11-07 01:33:56,269 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:56,269 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:56,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:56,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:33:56,494 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:56,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:56,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1194022431, now seen corresponding path program 1 times [2021-11-07 01:33:56,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:33:56,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55271823] [2021-11-07 01:33:56,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:56,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:33:56,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:33:56,497 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:33:56,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:34:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:01,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:34:01,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:01,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:01,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:01,805 INFO L354 Elim1Store]: treesize reduction 190, result has 12.8 percent of original size [2021-11-07 01:34:01,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 32 treesize of output 38 [2021-11-07 01:34:01,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:01,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:01,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:02,168 INFO L354 Elim1Store]: treesize reduction 850, result has 7.0 percent of original size [2021-11-07 01:34:02,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 70 treesize of output 87 [2021-11-07 01:34:04,498 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:34:04,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 108 treesize of output 36 [2021-11-07 01:34:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1524 proven. 0 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2021-11-07 01:34:05,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1524 proven. 0 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2021-11-07 01:34:06,948 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:06,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55271823] [2021-11-07 01:34:06,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55271823] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:06,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:06,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2021-11-07 01:34:06,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968094741] [2021-11-07 01:34:06,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:34:06,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:06,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:34:06,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:34:06,952 INFO L87 Difference]: Start difference. First operand 1767 states and 2659 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:48,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:48,632 INFO L93 Difference]: Finished difference Result 7750 states and 11707 transitions. [2021-11-07 01:34:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:34:48,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 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 553 [2021-11-07 01:34:48,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:48,667 INFO L225 Difference]: With dead ends: 7750 [2021-11-07 01:34:48,667 INFO L226 Difference]: Without dead ends: 5993 [2021-11-07 01:34:48,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 1098 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:34:48,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2021-11-07 01:34:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 2364. [2021-11-07 01:34:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2364 states, 2363 states have (on average 1.585272958104105) internal successors, (3746), 2363 states have internal predecessors, (3746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2364 states to 2364 states and 3746 transitions. [2021-11-07 01:34:48,843 INFO L78 Accepts]: Start accepts. Automaton has 2364 states and 3746 transitions. Word has length 553 [2021-11-07 01:34:48,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:48,844 INFO L470 AbstractCegarLoop]: Abstraction has 2364 states and 3746 transitions. [2021-11-07 01:34:48,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:48,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2364 states and 3746 transitions. [2021-11-07 01:34:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2021-11-07 01:34:48,854 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:48,855 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:48,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:49,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:49,082 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:49,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1439959711, now seen corresponding path program 1 times [2021-11-07 01:34:49,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:49,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251679947] [2021-11-07 01:34:49,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:49,086 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:49,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:49,088 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:49,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2dab365-5bd0-41c5-b897-af317b0561c7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:35:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:35:10,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-07 01:35:10,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:35:10,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:10,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5158 treesize of output 5122 [2021-11-07 01:35:11,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:35:11,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7170 [2021-11-07 01:35:11,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7594 treesize of output 7224 [2021-11-07 01:35:11,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:11,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 5463 treesize of output 5064 [2021-11-07 01:35:49,420 WARN L207 SmtUtils]: Spent 38.23 s on a formula simplification. DAG size of input: 31 DAG size of output: 9 [2021-11-07 01:35:49,420 INFO L354 Elim1Store]: treesize reduction 58, result has 15.9 percent of original size [2021-11-07 01:35:49,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 5634 treesize of output 5371 [2021-11-07 01:35:49,468 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:35:49,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 5573 treesize of output 5368 [2021-11-07 01:35:49,475 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:35:49,491 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 5544 treesize of output 5342 [2021-11-07 01:39:51,297 WARN L207 SmtUtils]: Spent 4.03 m on a formula simplification. DAG size of input: 110 DAG size of output: 29 [2021-11-07 01:39:51,298 INFO L354 Elim1Store]: treesize reduction 1868, result has 2.5 percent of original size [2021-11-07 01:39:51,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 5537 treesize of output 5383 [2021-11-07 01:39:51,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:51,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8285 [2021-11-07 01:39:51,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:39:51,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13040 [2021-11-07 01:39:51,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 7628 treesize of output 6792 [2021-11-07 01:39:51,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:39:51,687 INFO L244 Elim1Store]: Index analysis took 140 ms [2021-11-07 01:39:51,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 66 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 4998 treesize of output 4867 [2021-11-07 01:41:18,498 WARN L207 SmtUtils]: Spent 1.45 m on a formula simplification. DAG size of input: 68 DAG size of output: 24 [2021-11-07 01:41:18,499 INFO L354 Elim1Store]: treesize reduction 428, result has 10.6 percent of original size [2021-11-07 01:41:18,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 4818 treesize of output 4819 [2021-11-07 01:41:18,504 INFO L883 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:41:18,579 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 4806 treesize of output 4804 [2021-11-07 01:42:09,290 WARN L207 SmtUtils]: Spent 50.65 s on a formula simplification. DAG size of input: 41 DAG size of output: 15 [2021-11-07 01:42:09,290 INFO L354 Elim1Store]: treesize reduction 130, result has 13.9 percent of original size [2021-11-07 01:42:09,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 4799 treesize of output 4705 [2021-11-07 01:42:09,336 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 4716 treesize of output 4700 [2021-11-07 01:42:09,392 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 4709 treesize of output 4695 [2021-11-07 01:42:09,411 INFO L883 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:45:35,253 WARN L207 SmtUtils]: Spent 3.43 m on a formula simplification. DAG size of input: 148 DAG size of output: 52 [2021-11-07 01:45:35,254 INFO L354 Elim1Store]: treesize reduction 954, result has 13.7 percent of original size [2021-11-07 01:45:35,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 4702 treesize of output 4820 [2021-11-07 01:45:35,353 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-07 01:45:35,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4854 treesize of output 4828 [2021-11-07 01:45:35,446 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-07 01:45:35,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4833 treesize of output 4823 [2021-11-07 01:45:35,530 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-07 01:45:35,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 4812 treesize of output 4802 [2021-11-07 01:45:35,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 4791 treesize of output 4790 [2021-11-07 01:45:35,626 INFO L883 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-07 01:45:35,676 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:45:35,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34674 [2021-11-07 01:45:35,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:45:35,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67023 [2021-11-07 01:45:35,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67023 treesize of output 67027 [2021-11-07 01:45:45,390 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select v_arrayElimArr_5 ULTIMATE.start_main_~s~0.base) (bvadd ULTIMATE.start_main_~s~0.offset (_ bv84 32))) (_ bv0 32)) [2021-11-07 01:45:47,394 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select v_arrayElimArr_5 ULTIMATE.start_main_~s~0.base) (bvadd ULTIMATE.start_main_~s~0.offset (_ bv84 32))) (_ bv0 32)) [2021-11-07 01:45:52,061 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select v_arrayElimArr_5 ULTIMATE.start_main_~s~0.base) (bvadd (_ bv176 32) ULTIMATE.start_main_~s~0.offset)) (_ bv0 32)) [2021-11-07 01:45:52,725 INFO L244 Elim1Store]: Index analysis took 9346 ms [2021-11-07 01:46:11,289 WARN L207 SmtUtils]: Spent 18.56 s on a formula simplification. DAG size of input: 28 DAG size of output: 14 [2021-11-07 01:46:11,290 INFO L354 Elim1Store]: treesize reduction 23, result has 37.8 percent of original size [2021-11-07 01:46:11,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 201 treesize of output 195 [2021-11-07 01:46:46,310 INFO L244 Elim1Store]: Index analysis took 4648 ms