./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fdf21b24c583a6d136f11a4b24a73548bc1166a9ff6f145f509a3c93fdab8434 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:10:56,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:10:56,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:10:56,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:10:56,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:10:56,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:10:56,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:10:56,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:10:56,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:10:56,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:10:56,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:10:56,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:10:56,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:10:56,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:10:56,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:10:56,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:10:56,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:10:56,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:10:56,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:10:56,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:10:56,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:10:56,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:10:56,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:10:56,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:10:56,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:10:56,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:10:56,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:10:56,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:10:56,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:10:56,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:10:56,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:10:56,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:10:56,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:10:56,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:10:56,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:10:56,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:10:56,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:10:56,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:10:56,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:10:56,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:10:56,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:10:56,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:10:56,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:10:56,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:10:56,183 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:10:56,183 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:10:56,183 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:10:56,183 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:10:56,184 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:10:56,184 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:10:56,184 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:10:56,185 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:10:56,185 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:10:56,185 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:10:56,186 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:10:56,186 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:10:56,188 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:10:56,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:10:56,190 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:10:56,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:10:56,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:10:56,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:10:56,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:10:56,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:10:56,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:10:56,196 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:10:56,196 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:10:56,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:10:56,197 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:10:56,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:10:56,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:10:56,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:10:56,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:10:56,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:10:56,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:10:56,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:10:56,200 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:10:56,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:10:56,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:10:56,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:10:56,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:10:56,202 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_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdf21b24c583a6d136f11a4b24a73548bc1166a9ff6f145f509a3c93fdab8434 [2021-11-03 04:10:56,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:10:56,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:10:56,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:10:56,510 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:10:56,511 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:10:56,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c [2021-11-03 04:10:56,603 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data/cc54e4ce2/f9ae45c98a9942f0a662b4ed0c7b1e99/FLAGb3d94766b [2021-11-03 04:10:57,344 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:10:57,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c [2021-11-03 04:10:57,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data/cc54e4ce2/f9ae45c98a9942f0a662b4ed0c7b1e99/FLAGb3d94766b [2021-11-03 04:10:57,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data/cc54e4ce2/f9ae45c98a9942f0a662b4ed0c7b1e99 [2021-11-03 04:10:57,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:10:57,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:10:57,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:10:57,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:10:57,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:10:57,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:57" (1/1) ... [2021-11-03 04:10:57,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24607a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:57, skipping insertion in model container [2021-11-03 04:10:57,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:57" (1/1) ... [2021-11-03 04:10:57,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:10:57,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:10:58,362 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_f374cebe-4807-4bae-81cc-5942411987b6/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c[73270,73283] [2021-11-03 04:10:58,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:10:58,385 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:10:58,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66aeaa66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:58, skipping insertion in model container [2021-11-03 04:10:58,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:10:58,386 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:10:58,389 INFO L168 Benchmark]: Toolchain (without parser) took 874.88 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.9 MB in the beginning and 70.7 MB in the end (delta: -17.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:58,391 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory was 60.0 MB in the beginning and 60.0 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:10:58,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.00 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.7 MB in the beginning and 70.7 MB in the end (delta: -18.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:58,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory was 60.0 MB in the beginning and 60.0 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 872.00 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.7 MB in the beginning and 70.7 MB in the end (delta: -18.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 492]: 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_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fdf21b24c583a6d136f11a4b24a73548bc1166a9ff6f145f509a3c93fdab8434 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:11:00,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:11:00,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:11:00,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:11:00,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:11:00,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:11:00,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:11:00,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:11:00,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:11:00,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:11:00,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:11:00,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:11:00,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:11:00,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:11:00,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:11:00,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:11:00,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:11:00,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:11:00,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:11:00,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:11:00,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:11:00,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:11:00,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:11:00,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:11:00,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:11:00,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:11:00,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:11:00,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:11:00,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:11:00,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:11:00,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:11:00,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:11:00,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:11:00,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:11:00,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:11:00,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:11:00,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:11:00,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:11:00,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:11:00,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:11:00,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:11:00,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:11:00,743 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:11:00,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:11:00,744 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:11:00,744 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:11:00,744 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:11:00,744 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:11:00,745 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:11:00,745 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:11:00,745 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:11:00,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:11:00,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:11:00,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:11:00,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:11:00,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:11:00,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:11:00,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:11:00,747 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:11:00,748 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:11:00,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:11:00,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:11:00,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:11:00,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:11:00,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:11:00,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:11:00,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:11:00,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:11:00,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:11:00,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:11:00,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:11:00,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:11:00,751 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:11:00,751 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:11:00,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:11:00,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:11:00,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:11:00,752 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_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdf21b24c583a6d136f11a4b24a73548bc1166a9ff6f145f509a3c93fdab8434 [2021-11-03 04:11:01,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:11:01,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:11:01,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:11:01,172 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:11:01,173 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:11:01,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c [2021-11-03 04:11:01,260 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data/c7705c442/029bf890a7e1413ba4dd7dc665394978/FLAGe0d88507c [2021-11-03 04:11:02,033 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:11:02,034 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c [2021-11-03 04:11:02,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data/c7705c442/029bf890a7e1413ba4dd7dc665394978/FLAGe0d88507c [2021-11-03 04:11:02,174 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/data/c7705c442/029bf890a7e1413ba4dd7dc665394978 [2021-11-03 04:11:02,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:11:02,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:11:02,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:11:02,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:11:02,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:11:02,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:11:02" (1/1) ... [2021-11-03 04:11:02,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d03e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:02, skipping insertion in model container [2021-11-03 04:11:02,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:11:02" (1/1) ... [2021-11-03 04:11:02,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:11:02,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:11:03,005 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_f374cebe-4807-4bae-81cc-5942411987b6/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c[73270,73283] [2021-11-03 04:11:03,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:11:03,034 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:11:03,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:11:03,148 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_f374cebe-4807-4bae-81cc-5942411987b6/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c[73270,73283] [2021-11-03 04:11:03,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:11:03,154 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:11:03,272 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_f374cebe-4807-4bae-81cc-5942411987b6/sv-benchmarks/c/product-lines/email_spec8_productSimulator.cil.c[73270,73283] [2021-11-03 04:11:03,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:11:03,337 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:11:03,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03 WrapperNode [2021-11-03 04:11:03,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:11:03,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:11:03,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:11:03,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:11:03,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:03,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:09,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:11:09,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:11:09,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:11:09,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:11:09,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:09,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:10,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:10,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:12,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:13,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:13,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:14,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:11:14,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:11:14,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:11:14,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:11:14,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (1/1) ... [2021-11-03 04:11:14,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:11:14,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:11:14,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:11:14,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:11:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-03 04:11:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:11:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:11:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:11:14,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:12:18,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:12:18,731 INFO L299 CfgBuilder]: Removed 35931 assume(true) statements. [2021-11-03 04:12:18,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:12:18 BoogieIcfgContainer [2021-11-03 04:12:18,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:12:18,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:12:18,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:12:18,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:12:18,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:11:02" (1/3) ... [2021-11-03 04:12:18,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f771574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:12:18, skipping insertion in model container [2021-11-03 04:12:18,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:11:03" (2/3) ... [2021-11-03 04:12:18,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f771574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:12:18, skipping insertion in model container [2021-11-03 04:12:18,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:12:18" (3/3) ... [2021-11-03 04:12:18,776 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_productSimulator.cil.c [2021-11-03 04:12:18,782 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:12:18,783 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-11-03 04:12:18,933 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:12:18,940 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:12:18,940 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-11-03 04:12:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 34804 states, 34771 states have (on average 1.6085531045986599) internal successors, (55931), 34803 states have internal predecessors, (55931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:19,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:12:19,671 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:19,672 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] [2021-11-03 04:12:19,673 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:19,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1697074719, now seen corresponding path program 1 times [2021-11-03 04:12:19,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:19,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442909002] [2021-11-03 04:12:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:19,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:19,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:19,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:19,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:12:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:20,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:12:20,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:20,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:20,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:20,548 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:20,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442909002] [2021-11-03 04:12:20,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442909002] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:20,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:20,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:12:20,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834994651] [2021-11-03 04:12:20,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:12:20,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:12:20,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:12:20,621 INFO L87 Difference]: Start difference. First operand has 34804 states, 34771 states have (on average 1.6085531045986599) internal successors, (55931), 34803 states have internal predecessors, (55931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:21,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:21,580 INFO L93 Difference]: Finished difference Result 69273 states and 111250 transitions. [2021-11-03 04:12:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:12:21,582 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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 [2021-11-03 04:12:21,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:21,745 INFO L225 Difference]: With dead ends: 69273 [2021-11-03 04:12:21,745 INFO L226 Difference]: Without dead ends: 22248 [2021-11-03 04:12:21,835 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:12:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22248 states. [2021-11-03 04:12:22,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22248 to 22248. [2021-11-03 04:12:22,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22248 states, 22216 states have (on average 1.610010803024847) internal successors, (35768), 22247 states have internal predecessors, (35768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:22,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22248 states to 22248 states and 35768 transitions. [2021-11-03 04:12:22,923 INFO L78 Accepts]: Start accepts. Automaton has 22248 states and 35768 transitions. Word has length 46 [2021-11-03 04:12:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:22,925 INFO L470 AbstractCegarLoop]: Abstraction has 22248 states and 35768 transitions. [2021-11-03 04:12:22,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand 22248 states and 35768 transitions. [2021-11-03 04:12:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 04:12:22,935 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:22,936 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:22,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:23,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:23,154 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:23,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:23,155 INFO L85 PathProgramCache]: Analyzing trace with hash -318394746, now seen corresponding path program 1 times [2021-11-03 04:12:23,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:23,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754615803] [2021-11-03 04:12:23,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:23,156 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:23,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:23,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:23,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:12:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:23,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:12:23,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:23,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:23,940 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:23,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754615803] [2021-11-03 04:12:23,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754615803] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:23,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:23,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:12:23,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047442082] [2021-11-03 04:12:23,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:12:23,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:23,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:12:23,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:12:23,945 INFO L87 Difference]: Start difference. First operand 22248 states and 35768 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:25,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:25,305 INFO L93 Difference]: Finished difference Result 44471 states and 71498 transitions. [2021-11-03 04:12:25,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:12:25,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 47 [2021-11-03 04:12:25,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:25,391 INFO L225 Difference]: With dead ends: 44471 [2021-11-03 04:12:25,391 INFO L226 Difference]: Without dead ends: 22248 [2021-11-03 04:12:25,423 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:12:25,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22248 states. [2021-11-03 04:12:25,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22248 to 22248. [2021-11-03 04:12:25,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22248 states, 22216 states have (on average 1.609695714800144) internal successors, (35761), 22247 states have internal predecessors, (35761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22248 states to 22248 states and 35761 transitions. [2021-11-03 04:12:25,998 INFO L78 Accepts]: Start accepts. Automaton has 22248 states and 35761 transitions. Word has length 47 [2021-11-03 04:12:25,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:26,000 INFO L470 AbstractCegarLoop]: Abstraction has 22248 states and 35761 transitions. [2021-11-03 04:12:26,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 22248 states and 35761 transitions. [2021-11-03 04:12:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 04:12:26,011 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:26,011 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:26,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 04:12:26,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:26,226 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:26,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1620115276, now seen corresponding path program 1 times [2021-11-03 04:12:26,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:26,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281403323] [2021-11-03 04:12:26,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:26,229 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:26,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:26,230 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:26,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:12:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:26,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:12:26,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:26,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:27,017 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:27,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281403323] [2021-11-03 04:12:27,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281403323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:27,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:27,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:12:27,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206379072] [2021-11-03 04:12:27,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:12:27,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:27,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:12:27,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:12:27,019 INFO L87 Difference]: Start difference. First operand 22248 states and 35761 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:30,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:30,853 INFO L93 Difference]: Finished difference Result 30738 states and 49757 transitions. [2021-11-03 04:12:30,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:12:30,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-03 04:12:30,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:30,883 INFO L225 Difference]: With dead ends: 30738 [2021-11-03 04:12:30,883 INFO L226 Difference]: Without dead ends: 8504 [2021-11-03 04:12:30,910 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:12:30,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8504 states. [2021-11-03 04:12:31,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8504 to 8504. [2021-11-03 04:12:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8488 states have (on average 1.6085061262959472) internal successors, (13653), 8503 states have internal predecessors, (13653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 13653 transitions. [2021-11-03 04:12:31,152 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 13653 transitions. Word has length 52 [2021-11-03 04:12:31,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:31,152 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 13653 transitions. [2021-11-03 04:12:31,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:31,153 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 13653 transitions. [2021-11-03 04:12:31,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 04:12:31,156 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:31,157 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:31,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:31,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:31,375 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:31,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:31,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1260272636, now seen corresponding path program 1 times [2021-11-03 04:12:31,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:31,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082725721] [2021-11-03 04:12:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:31,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:31,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:31,378 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:31,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:12:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:31,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:12:31,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:31,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:31,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:32,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:32,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082725721] [2021-11-03 04:12:32,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082725721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:32,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:32,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:12:32,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913495112] [2021-11-03 04:12:32,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:12:32,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:32,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:12:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:32,165 INFO L87 Difference]: Start difference. First operand 8504 states and 13653 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:34,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:34,452 INFO L93 Difference]: Finished difference Result 13442 states and 21669 transitions. [2021-11-03 04:12:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:12:34,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2021-11-03 04:12:34,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:34,466 INFO L225 Difference]: With dead ends: 13442 [2021-11-03 04:12:34,466 INFO L226 Difference]: Without dead ends: 4954 [2021-11-03 04:12:34,476 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:34,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2021-11-03 04:12:34,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4954. [2021-11-03 04:12:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 4938 states have (on average 1.6245443499392467) internal successors, (8022), 4953 states have internal predecessors, (8022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:34,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 8022 transitions. [2021-11-03 04:12:34,631 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 8022 transitions. Word has length 61 [2021-11-03 04:12:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:34,633 INFO L470 AbstractCegarLoop]: Abstraction has 4954 states and 8022 transitions. [2021-11-03 04:12:34,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 8022 transitions. [2021-11-03 04:12:34,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:12:34,637 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:34,638 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:34,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:34,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:34,853 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:34,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash -13876731, now seen corresponding path program 1 times [2021-11-03 04:12:34,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:34,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575576233] [2021-11-03 04:12:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:34,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:34,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:34,856 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:34,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:12:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:35,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:12:35,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:35,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:35,698 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:35,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575576233] [2021-11-03 04:12:35,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575576233] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:35,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:35,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:12:35,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387430903] [2021-11-03 04:12:35,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:12:35,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:35,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:12:35,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:35,701 INFO L87 Difference]: Start difference. First operand 4954 states and 8022 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:38,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:38,026 INFO L93 Difference]: Finished difference Result 9863 states and 15980 transitions. [2021-11-03 04:12:38,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:12:38,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-03 04:12:38,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:38,045 INFO L225 Difference]: With dead ends: 9863 [2021-11-03 04:12:38,045 INFO L226 Difference]: Without dead ends: 4945 [2021-11-03 04:12:38,051 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:38,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4945 states. [2021-11-03 04:12:38,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4945 to 4945. [2021-11-03 04:12:38,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4945 states, 4929 states have (on average 1.62162710488943) internal successors, (7993), 4944 states have internal predecessors, (7993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:38,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4945 states to 4945 states and 7993 transitions. [2021-11-03 04:12:38,227 INFO L78 Accepts]: Start accepts. Automaton has 4945 states and 7993 transitions. Word has length 62 [2021-11-03 04:12:38,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:38,228 INFO L470 AbstractCegarLoop]: Abstraction has 4945 states and 7993 transitions. [2021-11-03 04:12:38,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 4945 states and 7993 transitions. [2021-11-03 04:12:38,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:12:38,230 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:38,230 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:38,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:38,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:38,445 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:38,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash -840846622, now seen corresponding path program 1 times [2021-11-03 04:12:38,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:38,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345239337] [2021-11-03 04:12:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:38,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:38,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:38,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:38,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:12:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:38,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:12:38,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:39,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:39,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:39,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:39,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:39,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345239337] [2021-11-03 04:12:39,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345239337] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:39,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:39,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:12:39,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688840217] [2021-11-03 04:12:39,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:12:39,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:39,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:12:39,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:12:39,271 INFO L87 Difference]: Start difference. First operand 4945 states and 7993 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:40,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:40,424 INFO L93 Difference]: Finished difference Result 19651 states and 31801 transitions. [2021-11-03 04:12:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:12:40,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 68 [2021-11-03 04:12:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:40,457 INFO L225 Difference]: With dead ends: 19651 [2021-11-03 04:12:40,457 INFO L226 Difference]: Without dead ends: 14746 [2021-11-03 04:12:40,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:12:40,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14746 states. [2021-11-03 04:12:40,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14746 to 4944. [2021-11-03 04:12:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4944 states, 4928 states have (on average 1.6211444805194806) internal successors, (7989), 4943 states have internal predecessors, (7989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:40,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4944 states to 4944 states and 7989 transitions. [2021-11-03 04:12:40,763 INFO L78 Accepts]: Start accepts. Automaton has 4944 states and 7989 transitions. Word has length 68 [2021-11-03 04:12:40,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:40,764 INFO L470 AbstractCegarLoop]: Abstraction has 4944 states and 7989 transitions. [2021-11-03 04:12:40,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:40,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4944 states and 7989 transitions. [2021-11-03 04:12:40,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 04:12:40,766 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:40,767 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:40,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:40,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:40,982 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:40,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:40,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1499722729, now seen corresponding path program 1 times [2021-11-03 04:12:40,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:40,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803277241] [2021-11-03 04:12:40,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:40,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:40,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:40,984 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:40,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:12:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:41,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:12:41,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:41,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:41,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:41,851 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:41,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803277241] [2021-11-03 04:12:41,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803277241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:41,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:41,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:12:41,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826419378] [2021-11-03 04:12:41,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:12:41,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:41,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:12:41,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:12:41,853 INFO L87 Difference]: Start difference. First operand 4944 states and 7989 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:42,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:42,918 INFO L93 Difference]: Finished difference Result 19618 states and 31732 transitions. [2021-11-03 04:12:42,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:12:42,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 69 [2021-11-03 04:12:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:42,956 INFO L225 Difference]: With dead ends: 19618 [2021-11-03 04:12:42,956 INFO L226 Difference]: Without dead ends: 14717 [2021-11-03 04:12:42,966 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:12:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14717 states. [2021-11-03 04:12:43,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14717 to 4943. [2021-11-03 04:12:43,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4943 states, 4927 states have (on average 1.6206616602394968) internal successors, (7985), 4942 states have internal predecessors, (7985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:43,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7985 transitions. [2021-11-03 04:12:43,368 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7985 transitions. Word has length 69 [2021-11-03 04:12:43,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:43,368 INFO L470 AbstractCegarLoop]: Abstraction has 4943 states and 7985 transitions. [2021-11-03 04:12:43,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7985 transitions. [2021-11-03 04:12:43,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 04:12:43,370 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:43,370 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:43,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:43,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:43,585 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:43,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1691186769, now seen corresponding path program 1 times [2021-11-03 04:12:43,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:43,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627450946] [2021-11-03 04:12:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:43,586 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:43,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:43,587 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:43,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:12:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:44,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 04:12:44,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:44,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:44,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:44,363 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:44,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627450946] [2021-11-03 04:12:44,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627450946] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:44,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:44,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:12:44,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473888836] [2021-11-03 04:12:44,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:12:44,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:44,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:12:44,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:12:44,366 INFO L87 Difference]: Start difference. First operand 4943 states and 7985 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:44,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:44,810 INFO L93 Difference]: Finished difference Result 9850 states and 15928 transitions. [2021-11-03 04:12:44,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:12:44,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-03 04:12:44,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:44,823 INFO L225 Difference]: With dead ends: 9850 [2021-11-03 04:12:44,823 INFO L226 Difference]: Without dead ends: 4955 [2021-11-03 04:12:44,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:12:44,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2021-11-03 04:12:45,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4943. [2021-11-03 04:12:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4943 states, 4927 states have (on average 1.6200527704485488) internal successors, (7982), 4942 states have internal predecessors, (7982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7982 transitions. [2021-11-03 04:12:45,128 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7982 transitions. Word has length 70 [2021-11-03 04:12:45,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:45,129 INFO L470 AbstractCegarLoop]: Abstraction has 4943 states and 7982 transitions. [2021-11-03 04:12:45,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:45,129 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7982 transitions. [2021-11-03 04:12:45,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 04:12:45,131 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:45,131 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:45,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:45,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:45,350 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:45,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:45,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1220545578, now seen corresponding path program 1 times [2021-11-03 04:12:45,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:45,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809160430] [2021-11-03 04:12:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:45,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:45,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:45,352 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:45,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:12:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:45,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:12:45,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:46,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:46,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:46,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:46,170 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:46,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809160430] [2021-11-03 04:12:46,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809160430] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:46,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:46,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:12:46,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482837213] [2021-11-03 04:12:46,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:12:46,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:46,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:12:46,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:12:46,172 INFO L87 Difference]: Start difference. First operand 4943 states and 7982 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:47,127 INFO L93 Difference]: Finished difference Result 19604 states and 31706 transitions. [2021-11-03 04:12:47,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:12:47,128 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 72 [2021-11-03 04:12:47,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:47,143 INFO L225 Difference]: With dead ends: 19604 [2021-11-03 04:12:47,143 INFO L226 Difference]: Without dead ends: 14713 [2021-11-03 04:12:47,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:12:47,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14713 states. [2021-11-03 04:12:47,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14713 to 4943. [2021-11-03 04:12:47,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4943 states, 4927 states have (on average 1.619443880657601) internal successors, (7979), 4942 states have internal predecessors, (7979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4943 states to 4943 states and 7979 transitions. [2021-11-03 04:12:47,580 INFO L78 Accepts]: Start accepts. Automaton has 4943 states and 7979 transitions. Word has length 72 [2021-11-03 04:12:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:47,581 INFO L470 AbstractCegarLoop]: Abstraction has 4943 states and 7979 transitions. [2021-11-03 04:12:47,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4943 states and 7979 transitions. [2021-11-03 04:12:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 04:12:47,583 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:47,583 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:47,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:47,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:47,799 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:47,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:47,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1832269061, now seen corresponding path program 1 times [2021-11-03 04:12:47,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:47,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939233435] [2021-11-03 04:12:47,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:47,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:47,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:47,801 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:47,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:12:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:48,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:12:48,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:48,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:48,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:48,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:48,715 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:48,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939233435] [2021-11-03 04:12:48,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939233435] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:48,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:48,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:12:48,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387787502] [2021-11-03 04:12:48,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:12:48,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:48,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:12:48,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:12:48,718 INFO L87 Difference]: Start difference. First operand 4943 states and 7979 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:49,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:49,207 INFO L93 Difference]: Finished difference Result 14453 states and 23321 transitions. [2021-11-03 04:12:49,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:12:49,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 74 [2021-11-03 04:12:49,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:49,218 INFO L225 Difference]: With dead ends: 14453 [2021-11-03 04:12:49,218 INFO L226 Difference]: Without dead ends: 9834 [2021-11-03 04:12:49,226 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:12:49,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9834 states. [2021-11-03 04:12:49,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9834 to 5215. [2021-11-03 04:12:49,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5199 states have (on average 1.6297364877861127) internal successors, (8473), 5214 states have internal predecessors, (8473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:49,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 8473 transitions. [2021-11-03 04:12:49,751 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 8473 transitions. Word has length 74 [2021-11-03 04:12:49,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:49,751 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 8473 transitions. [2021-11-03 04:12:49,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 8473 transitions. [2021-11-03 04:12:49,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-03 04:12:49,754 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:49,755 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:49,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:49,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:49,971 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:49,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1215757678, now seen corresponding path program 1 times [2021-11-03 04:12:49,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:49,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290650859] [2021-11-03 04:12:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:49,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:49,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:49,974 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:49,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:12:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:50,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:12:50,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:50,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:50,931 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:50,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290650859] [2021-11-03 04:12:50,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290650859] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:50,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:50,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:12:50,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278359743] [2021-11-03 04:12:50,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:12:50,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:50,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:12:50,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:50,933 INFO L87 Difference]: Start difference. First operand 5215 states and 8473 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:51,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:51,644 INFO L93 Difference]: Finished difference Result 15157 states and 24602 transitions. [2021-11-03 04:12:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:12:51,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-03 04:12:51,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:51,657 INFO L225 Difference]: With dead ends: 15157 [2021-11-03 04:12:51,658 INFO L226 Difference]: Without dead ends: 10053 [2021-11-03 04:12:51,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:51,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10053 states. [2021-11-03 04:12:52,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10053 to 5434. [2021-11-03 04:12:52,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5418 states have (on average 1.6369509043927648) internal successors, (8869), 5433 states have internal predecessors, (8869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:52,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 8869 transitions. [2021-11-03 04:12:52,303 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 8869 transitions. Word has length 86 [2021-11-03 04:12:52,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:52,303 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 8869 transitions. [2021-11-03 04:12:52,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 8869 transitions. [2021-11-03 04:12:52,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-03 04:12:52,307 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:52,307 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:52,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:52,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:52,522 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:52,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:52,523 INFO L85 PathProgramCache]: Analyzing trace with hash 998574031, now seen corresponding path program 1 times [2021-11-03 04:12:52,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:52,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587920312] [2021-11-03 04:12:52,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:52,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:52,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:52,525 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:52,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 04:12:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:53,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:12:53,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:53,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:53,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:53,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:53,496 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:53,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587920312] [2021-11-03 04:12:53,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587920312] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:53,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:53,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:12:53,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404247729] [2021-11-03 04:12:53,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:12:53,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:53,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:12:53,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:53,498 INFO L87 Difference]: Start difference. First operand 5434 states and 8869 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:54,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:54,077 INFO L93 Difference]: Finished difference Result 15844 states and 25850 transitions. [2021-11-03 04:12:54,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:12:54,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2021-11-03 04:12:54,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:54,089 INFO L225 Difference]: With dead ends: 15844 [2021-11-03 04:12:54,089 INFO L226 Difference]: Without dead ends: 10530 [2021-11-03 04:12:54,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:54,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10530 states. [2021-11-03 04:12:54,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10530 to 5911. [2021-11-03 04:12:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5911 states, 5895 states have (on average 1.6512298558100085) internal successors, (9734), 5910 states have internal predecessors, (9734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:54,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5911 states to 5911 states and 9734 transitions. [2021-11-03 04:12:54,642 INFO L78 Accepts]: Start accepts. Automaton has 5911 states and 9734 transitions. Word has length 87 [2021-11-03 04:12:54,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:54,643 INFO L470 AbstractCegarLoop]: Abstraction has 5911 states and 9734 transitions. [2021-11-03 04:12:54,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:54,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5911 states and 9734 transitions. [2021-11-03 04:12:54,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-03 04:12:54,647 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:54,648 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:54,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:12:54,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:54,863 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:54,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:54,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1329737850, now seen corresponding path program 1 times [2021-11-03 04:12:54,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:54,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753850644] [2021-11-03 04:12:54,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:54,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:54,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:54,866 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:54,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:12:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:55,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:12:55,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:55,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:55,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:55,915 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:55,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753850644] [2021-11-03 04:12:55,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753850644] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:55,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:55,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:12:55,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976961744] [2021-11-03 04:12:55,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:12:55,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:55,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:12:55,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:55,917 INFO L87 Difference]: Start difference. First operand 5911 states and 9734 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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) [2021-11-03 04:12:56,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:56,751 INFO L93 Difference]: Finished difference Result 17252 states and 28413 transitions. [2021-11-03 04:12:56,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:12:56,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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 88 [2021-11-03 04:12:56,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:56,766 INFO L225 Difference]: With dead ends: 17252 [2021-11-03 04:12:56,766 INFO L226 Difference]: Without dead ends: 11470 [2021-11-03 04:12:56,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:56,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11470 states. [2021-11-03 04:12:57,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11470 to 6851. [2021-11-03 04:12:57,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 6835 states have (on average 1.6741770299926848) internal successors, (11443), 6850 states have internal predecessors, (11443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 11443 transitions. [2021-11-03 04:12:57,389 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 11443 transitions. Word has length 88 [2021-11-03 04:12:57,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:12:57,389 INFO L470 AbstractCegarLoop]: Abstraction has 6851 states and 11443 transitions. [2021-11-03 04:12:57,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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) [2021-11-03 04:12:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 11443 transitions. [2021-11-03 04:12:57,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-03 04:12:57,395 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:12:57,396 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:12:57,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-03 04:12:57,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:12:57,623 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:12:57,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:12:57,623 INFO L85 PathProgramCache]: Analyzing trace with hash -145607464, now seen corresponding path program 1 times [2021-11-03 04:12:57,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:12:57,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119346067] [2021-11-03 04:12:57,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:12:57,624 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:12:57,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:12:57,625 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:12:57,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 04:12:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:12:58,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:12:58,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:12:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:58,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:12:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:12:58,681 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:12:58,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119346067] [2021-11-03 04:12:58,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119346067] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:12:58,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:12:58,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:12:58,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117651167] [2021-11-03 04:12:58,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:12:58,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:12:58,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:12:58,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:58,683 INFO L87 Difference]: Start difference. First operand 6851 states and 11443 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:12:59,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:12:59,636 INFO L93 Difference]: Finished difference Result 19803 states and 33054 transitions. [2021-11-03 04:12:59,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:12:59,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-03 04:12:59,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:12:59,654 INFO L225 Difference]: With dead ends: 19803 [2021-11-03 04:12:59,654 INFO L226 Difference]: Without dead ends: 13116 [2021-11-03 04:12:59,663 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:12:59,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13116 states. [2021-11-03 04:13:00,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13116 to 8497. [2021-11-03 04:13:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8497 states, 8481 states have (on average 1.701686121919585) internal successors, (14432), 8496 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:00,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8497 states to 8497 states and 14432 transitions. [2021-11-03 04:13:00,301 INFO L78 Accepts]: Start accepts. Automaton has 8497 states and 14432 transitions. Word has length 89 [2021-11-03 04:13:00,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:13:00,301 INFO L470 AbstractCegarLoop]: Abstraction has 8497 states and 14432 transitions. [2021-11-03 04:13:00,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:13:00,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8497 states and 14432 transitions. [2021-11-03 04:13:00,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-03 04:13:00,307 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:13:00,308 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:13:00,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-03 04:13:00,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:13:00,532 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-03 04:13:00,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:13:00,532 INFO L85 PathProgramCache]: Analyzing trace with hash -141403523, now seen corresponding path program 1 times [2021-11-03 04:13:00,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:13:00,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406918860] [2021-11-03 04:13:00,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:13:00,533 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:13:00,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:13:00,535 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:13:00,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f374cebe-4807-4bae-81cc-5942411987b6/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 04:13:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:13:01,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:13:01,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:13:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:01,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:13:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:13:01,625 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:13:01,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406918860] [2021-11-03 04:13:01,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406918860] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:13:01,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:13:01,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:13:01,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485915657] [2021-11-03 04:13:01,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:13:01,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:13:01,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:13:01,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:13:01,627 INFO L87 Difference]: Start difference. First operand 8497 states and 14432 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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)