./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG --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 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG --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 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:44:28,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:44:28,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:44:29,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:44:29,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:44:29,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:44:29,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:44:29,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:44:29,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:44:29,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:44:29,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:44:29,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:44:29,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:44:29,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:44:29,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:44:29,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:44:29,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:44:29,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:44:29,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:44:29,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:44:29,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:44:29,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:44:29,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:44:29,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:44:29,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:44:29,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:44:29,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:44:29,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:44:29,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:44:29,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:44:29,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:44:29,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:44:29,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:44:29,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:44:29,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:44:29,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:44:29,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:44:29,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:44:29,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:44:29,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:44:29,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:44:29,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:44:29,211 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:44:29,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:44:29,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:44:29,213 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:44:29,214 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:44:29,214 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:44:29,214 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:44:29,214 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:44:29,215 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:44:29,215 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:44:29,217 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:44:29,217 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:44:29,217 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:44:29,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:44:29,218 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:44:29,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:44:29,219 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:44:29,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:44:29,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:44:29,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:44:29,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:44:29,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:44:29,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:44:29,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:44:29,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:44:29,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:44:29,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:44:29,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:44:29,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:44:29,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:44:29,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:29,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:44:29,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:44:29,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:44:29,237 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:44:29,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:44:29,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:44:29,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:44:29,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:44:29,239 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_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f [2021-10-29 04:44:29,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:44:29,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:44:29,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:44:29,691 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:44:29,692 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:44:29,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-10-29 04:44:29,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data/02bb3cbc9/8ee8f8312b0540369c588b79f7e67201/FLAG92398dbd6 [2021-10-29 04:44:30,535 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:44:30,536 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-10-29 04:44:30,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data/02bb3cbc9/8ee8f8312b0540369c588b79f7e67201/FLAG92398dbd6 [2021-10-29 04:44:30,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data/02bb3cbc9/8ee8f8312b0540369c588b79f7e67201 [2021-10-29 04:44:30,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:44:30,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:44:30,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:30,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:44:30,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:44:30,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:30" (1/1) ... [2021-10-29 04:44:30,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@178b916d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:30, skipping insertion in model container [2021-10-29 04:44:30,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:30" (1/1) ... [2021-10-29 04:44:30,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:44:30,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:44:31,275 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_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2021-10-29 04:44:31,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:31,344 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) [2021-10-29 04:44:31,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e416c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:31, skipping insertion in model container [2021-10-29 04:44:31,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:31,346 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:44:31,349 INFO L168 Benchmark]: Toolchain (without parser) took 557.67 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 64.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:31,351 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:44:31,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.34 ms. Allocated memory is still 92.3 MB. Free memory was 69.6 MB in the beginning and 64.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:31,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 555.34 ms. Allocated memory is still 92.3 MB. Free memory was 69.6 MB in the beginning and 64.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 372]: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:44:34,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:44:34,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:44:34,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:44:34,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:44:34,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:44:34,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:44:34,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:44:34,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:44:34,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:44:34,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:44:34,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:44:34,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:44:34,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:44:34,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:44:34,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:44:34,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:44:34,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:44:34,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:44:34,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:44:34,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:44:34,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:44:34,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:44:34,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:44:34,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:44:34,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:44:34,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:44:34,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:44:34,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:44:34,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:44:34,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:44:34,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:44:34,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:44:34,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:44:34,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:44:34,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:44:34,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:44:34,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:44:34,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:44:34,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:44:34,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:44:34,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:44:34,574 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:44:34,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:44:34,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:44:34,577 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:44:34,577 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:44:34,577 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:44:34,578 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:44:34,578 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:44:34,579 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:44:34,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:44:34,582 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:44:34,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:44:34,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:44:34,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:44:34,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:44:34,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:44:34,584 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:44:34,584 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:44:34,585 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:44:34,585 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:44:34,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:44:34,586 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:44:34,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:44:34,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:44:34,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:44:34,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:44:34,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:34,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:44:34,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:44:34,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:44:34,588 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:44:34,589 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:44:34,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:44:34,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:44:34,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:44:34,590 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_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f [2021-10-29 04:44:35,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:44:35,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:44:35,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:44:35,189 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:44:35,190 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:44:35,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-10-29 04:44:35,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data/c43c00175/6893823098e54b4e8561fdd856267baa/FLAG9d700f384 [2021-10-29 04:44:36,117 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:44:36,124 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-10-29 04:44:36,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data/c43c00175/6893823098e54b4e8561fdd856267baa/FLAG9d700f384 [2021-10-29 04:44:36,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/data/c43c00175/6893823098e54b4e8561fdd856267baa [2021-10-29 04:44:36,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:44:36,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:44:36,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:36,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:44:36,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:44:36,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:36" (1/1) ... [2021-10-29 04:44:36,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693ff4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:36, skipping insertion in model container [2021-10-29 04:44:36,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:36" (1/1) ... [2021-10-29 04:44:36,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:44:36,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:44:36,866 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_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2021-10-29 04:44:36,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:36,930 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:44:36,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:44:37,048 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_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2021-10-29 04:44:37,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:37,078 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:44:37,178 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_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2021-10-29 04:44:37,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:37,255 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:44:37,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37 WrapperNode [2021-10-29 04:44:37,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:37,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:44:37,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:44:37,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:44:37,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:44:37,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:44:37,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:44:37,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:44:37,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:44:37,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:44:37,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:44:37,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:44:37,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (1/1) ... [2021-10-29 04:44:37,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:37,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:44:37,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:44:37,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:44:37,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:44:37,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:44:37,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:44:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:44:40,641 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:44:40,641 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-29 04:44:40,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:40 BoogieIcfgContainer [2021-10-29 04:44:40,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:44:40,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:44:40,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:44:40,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:44:40,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:44:36" (1/3) ... [2021-10-29 04:44:40,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c6a55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:44:40, skipping insertion in model container [2021-10-29 04:44:40,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:37" (2/3) ... [2021-10-29 04:44:40,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c6a55a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:44:40, skipping insertion in model container [2021-10-29 04:44:40,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:40" (3/3) ... [2021-10-29 04:44:40,657 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2021-10-29 04:44:40,664 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:44:40,665 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 04:44:40,742 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:44:40,755 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 [2021-10-29 04:44:40,755 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:44:40,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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) [2021-10-29 04:44:40,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:44:40,782 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:40,783 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:44:40,783 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:40,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:40,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1844308238, now seen corresponding path program 1 times [2021-10-29 04:44:40,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:40,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106379698] [2021-10-29 04:44:40,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:40,808 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:40,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:40,812 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:40,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:44:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:41,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:44:41,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:41,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:41,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:41,341 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:41,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106379698] [2021-10-29 04:44:41,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106379698] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:41,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:41,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:44:41,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126407754] [2021-10-29 04:44:41,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:44:41,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:41,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:44:41,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:44:41,390 INFO L87 Difference]: Start difference. First operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-10-29 04:44:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:41,444 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2021-10-29 04:44:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:44:41,446 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-10-29 04:44:41,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:41,460 INFO L225 Difference]: With dead ends: 232 [2021-10-29 04:44:41,461 INFO L226 Difference]: Without dead ends: 115 [2021-10-29 04:44:41,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:44:41,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-29 04:44:41,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-29 04:44:41,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 112 states have (on average 1.5) internal successors, (168), 114 states have internal predecessors, (168), 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) [2021-10-29 04:44:41,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2021-10-29 04:44:41,518 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2021-10-29 04:44:41,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:41,519 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2021-10-29 04:44:41,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-10-29 04:44:41,520 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2021-10-29 04:44:41,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:44:41,522 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:41,522 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:44:41,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:41,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:41,744 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:41,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash -323074868, now seen corresponding path program 1 times [2021-10-29 04:44:41,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:41,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519007197] [2021-10-29 04:44:41,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:41,755 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:41,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:41,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:41,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:44:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:41,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:44:41,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:42,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:42,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:42,135 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:42,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519007197] [2021-10-29 04:44:42,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519007197] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:42,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:42,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:44:42,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477624691] [2021-10-29 04:44:42,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:44:42,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:42,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:44:42,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:44:42,139 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-10-29 04:44:42,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:42,159 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2021-10-29 04:44:42,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:44:42,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-29 04:44:42,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:42,162 INFO L225 Difference]: With dead ends: 115 [2021-10-29 04:44:42,162 INFO L226 Difference]: Without dead ends: 49 [2021-10-29 04:44:42,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:44:42,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-29 04:44:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-29 04:44:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 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) [2021-10-29 04:44:42,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-29 04:44:42,171 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2021-10-29 04:44:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:42,172 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-29 04:44:42,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-10-29 04:44:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-29 04:44:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 04:44:42,174 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:42,174 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] [2021-10-29 04:44:42,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:42,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:42,390 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:42,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:42,391 INFO L85 PathProgramCache]: Analyzing trace with hash -426243093, now seen corresponding path program 1 times [2021-10-29 04:44:42,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:42,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926522791] [2021-10-29 04:44:42,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:42,392 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:42,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:42,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:42,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:44:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:42,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:44:42,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:42,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:42,914 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:42,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926522791] [2021-10-29 04:44:42,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926522791] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:42,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:42,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:44:42,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734188690] [2021-10-29 04:44:42,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:44:42,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:42,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:44:42,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:44:42,919 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-10-29 04:44:42,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:42,972 INFO L93 Difference]: Finished difference Result 158 states and 235 transitions. [2021-10-29 04:44:42,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:44:42,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 22 [2021-10-29 04:44:42,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:42,976 INFO L225 Difference]: With dead ends: 158 [2021-10-29 04:44:42,977 INFO L226 Difference]: Without dead ends: 115 [2021-10-29 04:44:42,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:44:42,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-29 04:44:42,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 68. [2021-10-29 04:44:43,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.492537313432836) internal successors, (100), 67 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2021-10-29 04:44:43,003 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 22 [2021-10-29 04:44:43,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:43,004 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2021-10-29 04:44:43,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-10-29 04:44:43,005 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2021-10-29 04:44:43,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:44:43,009 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:43,009 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] [2021-10-29 04:44:43,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:43,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:43,228 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:43,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:43,229 INFO L85 PathProgramCache]: Analyzing trace with hash 844046893, now seen corresponding path program 1 times [2021-10-29 04:44:43,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:43,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856944867] [2021-10-29 04:44:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:43,231 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:43,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:43,235 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:43,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:44:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:43,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:44:43,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:43,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:43,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:43,628 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:43,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856944867] [2021-10-29 04:44:43,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856944867] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:43,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:43,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:44:43,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872621958] [2021-10-29 04:44:43,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:44:43,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:43,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:44:43,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:44:43,633 INFO L87 Difference]: Start difference. First operand 68 states and 100 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-29 04:44:43,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:43,726 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2021-10-29 04:44:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:44:43,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-10-29 04:44:43,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:43,730 INFO L225 Difference]: With dead ends: 151 [2021-10-29 04:44:43,731 INFO L226 Difference]: Without dead ends: 89 [2021-10-29 04:44:43,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:44:43,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-29 04:44:43,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2021-10-29 04:44:43,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.441860465116279) internal successors, (124), 86 states have internal predecessors, (124), 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) [2021-10-29 04:44:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2021-10-29 04:44:43,767 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 24 [2021-10-29 04:44:43,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:43,767 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2021-10-29 04:44:43,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-10-29 04:44:43,768 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2021-10-29 04:44:43,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 04:44:43,771 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:43,771 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] [2021-10-29 04:44:43,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:43,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:43,991 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:43,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:43,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1604149312, now seen corresponding path program 1 times [2021-10-29 04:44:43,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:43,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113630109] [2021-10-29 04:44:43,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:43,993 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:43,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:43,995 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:44,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:44:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:44,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:44:44,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:44,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:44,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:44,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113630109] [2021-10-29 04:44:44,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113630109] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:44,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:44,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 04:44:44,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757787703] [2021-10-29 04:44:44,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:44:44,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:44,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:44:44,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:44:44,579 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-29 04:44:44,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:44,729 INFO L93 Difference]: Finished difference Result 445 states and 650 transitions. [2021-10-29 04:44:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:44:44,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-10-29 04:44:44,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:44,733 INFO L225 Difference]: With dead ends: 445 [2021-10-29 04:44:44,733 INFO L226 Difference]: Without dead ends: 364 [2021-10-29 04:44:44,734 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:44:44,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-10-29 04:44:44,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 160. [2021-10-29 04:44:44,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.421383647798742) internal successors, (226), 159 states have internal predecessors, (226), 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) [2021-10-29 04:44:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 226 transitions. [2021-10-29 04:44:44,768 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 226 transitions. Word has length 25 [2021-10-29 04:44:44,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:44,769 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 226 transitions. [2021-10-29 04:44:44,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-29 04:44:44,769 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 226 transitions. [2021-10-29 04:44:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 04:44:44,771 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:44,771 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] [2021-10-29 04:44:44,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:44,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:44,985 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:44,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:44,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1807956406, now seen corresponding path program 1 times [2021-10-29 04:44:44,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:44,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512392740] [2021-10-29 04:44:44,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:44,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:44,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:44,988 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:45,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:44:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:45,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:44:45,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:45,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:45,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:45,482 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:45,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512392740] [2021-10-29 04:44:45,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512392740] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:45,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:45,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 04:44:45,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559220810] [2021-10-29 04:44:45,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:44:45,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:45,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:44:45,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:44:45,509 INFO L87 Difference]: Start difference. First operand 160 states and 226 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-29 04:44:45,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:45,789 INFO L93 Difference]: Finished difference Result 448 states and 637 transitions. [2021-10-29 04:44:45,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 04:44:45,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2021-10-29 04:44:45,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:45,794 INFO L225 Difference]: With dead ends: 448 [2021-10-29 04:44:45,794 INFO L226 Difference]: Without dead ends: 446 [2021-10-29 04:44:45,795 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:44:45,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-10-29 04:44:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 160. [2021-10-29 04:44:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.4088050314465408) internal successors, (224), 159 states have internal predecessors, (224), 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) [2021-10-29 04:44:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 224 transitions. [2021-10-29 04:44:45,853 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 224 transitions. Word has length 26 [2021-10-29 04:44:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:45,854 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 224 transitions. [2021-10-29 04:44:45,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-10-29 04:44:45,856 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 224 transitions. [2021-10-29 04:44:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:44:45,864 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:45,864 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] [2021-10-29 04:44:45,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:46,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:46,082 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:46,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:46,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1131451540, now seen corresponding path program 1 times [2021-10-29 04:44:46,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:46,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272992553] [2021-10-29 04:44:46,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:46,085 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:46,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:46,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:46,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 04:44:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:46,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:44:46,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:46,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:46,614 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:46,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272992553] [2021-10-29 04:44:46,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272992553] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:46,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:46,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 04:44:46,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443805035] [2021-10-29 04:44:46,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:44:46,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:46,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:44:46,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:44:46,618 INFO L87 Difference]: Start difference. First operand 160 states and 224 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-29 04:44:46,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:46,754 INFO L93 Difference]: Finished difference Result 476 states and 660 transitions. [2021-10-29 04:44:46,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:44:46,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-10-29 04:44:46,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:46,758 INFO L225 Difference]: With dead ends: 476 [2021-10-29 04:44:46,758 INFO L226 Difference]: Without dead ends: 322 [2021-10-29 04:44:46,760 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:44:46,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-10-29 04:44:46,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 172. [2021-10-29 04:44:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 171 states have internal predecessors, (236), 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) [2021-10-29 04:44:46,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 236 transitions. [2021-10-29 04:44:46,796 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 236 transitions. Word has length 31 [2021-10-29 04:44:46,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:46,799 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 236 transitions. [2021-10-29 04:44:46,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-10-29 04:44:46,800 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 236 transitions. [2021-10-29 04:44:46,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:44:46,804 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:46,804 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] [2021-10-29 04:44:46,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:47,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:47,005 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:47,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:47,006 INFO L85 PathProgramCache]: Analyzing trace with hash 738424530, now seen corresponding path program 1 times [2021-10-29 04:44:47,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:47,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536267391] [2021-10-29 04:44:47,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:47,007 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:47,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:47,011 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:47,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 04:44:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:47,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:44:47,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:47,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:47,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:47,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:47,525 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:47,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536267391] [2021-10-29 04:44:47,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536267391] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:47,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:47,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 04:44:47,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111505969] [2021-10-29 04:44:47,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:44:47,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:47,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:44:47,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:44:47,527 INFO L87 Difference]: Start difference. First operand 172 states and 236 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-29 04:44:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:47,647 INFO L93 Difference]: Finished difference Result 510 states and 694 transitions. [2021-10-29 04:44:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:44:47,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 31 [2021-10-29 04:44:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:47,650 INFO L225 Difference]: With dead ends: 510 [2021-10-29 04:44:47,651 INFO L226 Difference]: Without dead ends: 344 [2021-10-29 04:44:47,651 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:44:47,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-10-29 04:44:47,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 180. [2021-10-29 04:44:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.3631284916201116) internal successors, (244), 179 states have internal predecessors, (244), 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) [2021-10-29 04:44:47,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 244 transitions. [2021-10-29 04:44:47,685 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 244 transitions. Word has length 31 [2021-10-29 04:44:47,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:47,686 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 244 transitions. [2021-10-29 04:44:47,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-29 04:44:47,686 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 244 transitions. [2021-10-29 04:44:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:44:47,687 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:47,687 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] [2021-10-29 04:44:47,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:47,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:47,909 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:47,910 INFO L85 PathProgramCache]: Analyzing trace with hash 996589968, now seen corresponding path program 1 times [2021-10-29 04:44:47,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:47,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137975645] [2021-10-29 04:44:47,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:47,911 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:47,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:47,912 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:47,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 04:44:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:48,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:44:48,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:48,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:48,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:48,539 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:48,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137975645] [2021-10-29 04:44:48,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137975645] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:48,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:48,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:44:48,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518069887] [2021-10-29 04:44:48,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:44:48,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:48,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:44:48,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:44:48,542 INFO L87 Difference]: Start difference. First operand 180 states and 244 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-10-29 04:44:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:48,681 INFO L93 Difference]: Finished difference Result 588 states and 800 transitions. [2021-10-29 04:44:48,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:44:48,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 31 [2021-10-29 04:44:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:48,685 INFO L225 Difference]: With dead ends: 588 [2021-10-29 04:44:48,685 INFO L226 Difference]: Without dead ends: 414 [2021-10-29 04:44:48,686 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:44:48,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-10-29 04:44:48,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 324. [2021-10-29 04:44:48,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.346749226006192) internal successors, (435), 323 states have internal predecessors, (435), 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) [2021-10-29 04:44:48,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 435 transitions. [2021-10-29 04:44:48,744 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 435 transitions. Word has length 31 [2021-10-29 04:44:48,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:48,744 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 435 transitions. [2021-10-29 04:44:48,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-10-29 04:44:48,745 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 435 transitions. [2021-10-29 04:44:48,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 04:44:48,746 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:48,746 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] [2021-10-29 04:44:48,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:48,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:48,962 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:48,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1116169902, now seen corresponding path program 1 times [2021-10-29 04:44:48,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:48,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643517046] [2021-10-29 04:44:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:48,964 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:48,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:48,965 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:48,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 04:44:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:44:50,616 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:44:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:44:52,686 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 04:44:52,687 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:44:52,688 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:44:52,690 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:44:52,691 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:44:52,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:52,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:52,918 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:44:52,922 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:44:53,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:44:53 BoogieIcfgContainer [2021-10-29 04:44:53,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:44:53,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:44:53,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:44:53,117 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:44:53,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:40" (3/4) ... [2021-10-29 04:44:53,120 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:44:53,247 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:44:53,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:44:53,249 INFO L168 Benchmark]: Toolchain (without parser) took 16896.54 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 45.5 MB in the beginning and 57.1 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:53,250 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 81.8 MB. Free memory is still 62.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:44:53,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 898.76 ms. Allocated memory is still 81.8 MB. Free memory was 45.3 MB in the beginning and 49.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:53,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.83 ms. Allocated memory is still 81.8 MB. Free memory was 49.9 MB in the beginning and 46.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:53,252 INFO L168 Benchmark]: Boogie Preprocessor took 115.92 ms. Allocated memory is still 81.8 MB. Free memory was 46.4 MB in the beginning and 43.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:53,252 INFO L168 Benchmark]: RCFGBuilder took 3140.87 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 43.6 MB in the beginning and 62.5 MB in the end (delta: -18.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:53,253 INFO L168 Benchmark]: TraceAbstraction took 12466.05 ms. Allocated memory is still 100.7 MB. Free memory was 62.0 MB in the beginning and 70.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:53,253 INFO L168 Benchmark]: Witness Printer took 131.03 ms. Allocated memory is still 100.7 MB. Free memory was 70.8 MB in the beginning and 57.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:53,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 81.8 MB. Free memory is still 62.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 898.76 ms. Allocated memory is still 81.8 MB. Free memory was 45.3 MB in the beginning and 49.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 128.83 ms. Allocated memory is still 81.8 MB. Free memory was 49.9 MB in the beginning and 46.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.92 ms. Allocated memory is still 81.8 MB. Free memory was 46.4 MB in the beginning and 43.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3140.87 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 43.6 MB in the beginning and 62.5 MB in the end (delta: -18.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12466.05 ms. Allocated memory is still 100.7 MB. Free memory was 62.0 MB in the beginning and 70.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. * Witness Printer took 131.03 ms. Allocated memory is still 100.7 MB. Free memory was 70.8 MB in the beginning and 57.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 714]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L513] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L783] int cleanupTimeShifts = 4; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L856] int retValue_acc ; [L857] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L748] int retValue_acc ; [L751] retValue_acc = 1 [L752] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] COND TRUE waterLevel < 2 [L899] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L910] COND FALSE !(\read(methaneLevelCritical)) [L913] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L139] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L146] COND TRUE \read(systemActive) [L194] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L197] COND FALSE !(\read(pumpRunning)) [L168] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L171] COND TRUE ! pumpRunning [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L960] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L963] COND FALSE !(waterLevel < 2) [L967] retValue_acc = 0 [L968] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L297] tmp = isHighWaterSensorDry() [L299] COND FALSE !(\read(tmp)) [L302] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L173] tmp = isHighWaterLevel() [L175] COND TRUE \read(tmp) [L222] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L758] int tmp ; [L759] int tmp___0 ; [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L763] tmp = isMethaneLevelCritical() [L765] COND TRUE \read(tmp) [L246] int retValue_acc ; [L249] retValue_acc = pumpRunning [L250] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L767] tmp___0 = isPumpRunning() [L769] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L714] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 714]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 12.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 890 SDtfs, 1212 SDslu, 1418 SDs, 0 SdLazy, 170 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=9, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 943 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 737 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1810 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:44:53,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0ebe9d1-01ca-46a9-b586-5c97eaeabb74/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...