./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE --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 b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 ............................................................................................................................................ 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_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE --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 b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-24 10:23:09,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:23:09,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:23:09,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:23:09,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:23:09,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:23:09,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:23:09,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:23:09,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:23:09,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:23:09,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:23:09,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:23:09,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:23:09,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:23:09,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:23:09,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:23:09,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:23:09,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:23:09,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:23:09,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:23:09,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:23:09,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:23:09,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:23:09,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:23:09,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:23:09,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:23:09,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:23:09,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:23:09,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:23:09,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:23:09,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:23:09,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:23:09,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:23:09,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:23:09,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:23:09,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:23:09,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:23:09,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:23:09,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:23:09,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:23:09,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:23:09,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:23:09,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:23:09,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:23:09,807 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:23:09,807 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:23:09,807 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:23:09,808 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:23:09,808 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:23:09,808 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:23:09,808 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:23:09,809 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:23:09,809 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:23:09,809 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:23:09,809 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:23:09,810 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:23:09,810 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:23:09,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:23:09,811 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:23:09,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:23:09,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:23:09,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:23:09,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:23:09,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:23:09,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:23:09,812 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:23:09,813 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:23:09,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:23:09,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:23:09,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:23:09,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:23:09,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:23:09,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:23:09,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:23:09,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:23:09,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:23:09,815 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:23:09,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:23:09,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:23:09,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:23:09,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:23:09,816 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_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 [2021-10-24 10:23:10,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:23:10,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:23:10,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:23:10,068 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:23:10,069 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:23:10,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2021-10-24 10:23:10,134 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data/b7a2cb16f/5c29f8b393f44fe7a5c45c6e6fd215a3/FLAG145d0eb3e [2021-10-24 10:23:10,761 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:23:10,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2021-10-24 10:23:10,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data/b7a2cb16f/5c29f8b393f44fe7a5c45c6e6fd215a3/FLAG145d0eb3e [2021-10-24 10:23:11,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data/b7a2cb16f/5c29f8b393f44fe7a5c45c6e6fd215a3 [2021-10-24 10:23:11,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:23:11,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:23:11,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:11,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:23:11,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:23:11,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:11" (1/1) ... [2021-10-24 10:23:11,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5616526f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:11, skipping insertion in model container [2021-10-24 10:23:11,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:11" (1/1) ... [2021-10-24 10:23:11,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:23:11,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:23:11,421 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_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2021-10-24 10:23:11,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:11,481 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) [2021-10-24 10:23:11,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fc4e383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:11, skipping insertion in model container [2021-10-24 10:23:11,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:11,483 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:23:11,486 INFO L168 Benchmark]: Toolchain (without parser) took 421.80 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 72.5 MB in the beginning and 112.6 MB in the end (delta: -40.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:11,487 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory was 55.1 MB in the beginning and 55.0 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:23:11,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.92 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 72.2 MB in the beginning and 112.6 MB in the end (delta: -40.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:11,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory was 55.1 MB in the beginning and 55.0 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 415.92 ms. Allocated memory was 100.7 MB in the beginning and 138.4 MB in the end (delta: 37.7 MB). Free memory was 72.2 MB in the beginning and 112.6 MB in the end (delta: -40.4 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: 182]: 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-e943c26 [2021-10-24 10:23:13,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:23:13,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:23:13,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:23:13,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:23:13,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:23:13,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:23:13,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:23:13,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:23:13,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:23:13,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:23:13,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:23:13,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:23:13,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:23:13,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:23:13,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:23:13,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:23:13,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:23:13,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:23:13,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:23:13,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:23:13,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:23:13,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:23:13,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:23:13,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:23:13,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:23:13,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:23:14,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:23:14,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:23:14,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:23:14,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:23:14,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:23:14,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:23:14,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:23:14,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:23:14,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:23:14,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:23:14,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:23:14,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:23:14,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:23:14,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:23:14,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:23:14,067 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:23:14,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:23:14,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:23:14,070 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:23:14,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:23:14,070 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:23:14,070 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:23:14,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:23:14,071 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:23:14,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:23:14,074 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:23:14,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:23:14,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:23:14,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:23:14,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:23:14,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:23:14,075 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:23:14,075 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:23:14,076 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:23:14,076 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:23:14,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:23:14,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:23:14,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:23:14,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:23:14,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:23:14,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:23:14,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:23:14,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:23:14,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:23:14,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:23:14,079 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:23:14,079 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:23:14,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:23:14,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:23:14,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:23:14,080 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_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 [2021-10-24 10:23:14,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:23:14,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:23:14,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:23:14,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:23:14,609 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:23:14,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2021-10-24 10:23:14,697 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data/0bbbb1c1e/695aa8ad53d54715b4fe196cfb05304d/FLAG069861743 [2021-10-24 10:23:15,292 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:23:15,294 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2021-10-24 10:23:15,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data/0bbbb1c1e/695aa8ad53d54715b4fe196cfb05304d/FLAG069861743 [2021-10-24 10:23:15,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/data/0bbbb1c1e/695aa8ad53d54715b4fe196cfb05304d [2021-10-24 10:23:15,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:23:15,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:23:15,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:15,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:23:15,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:23:15,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:15" (1/1) ... [2021-10-24 10:23:15,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe5a90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:15, skipping insertion in model container [2021-10-24 10:23:15,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:15" (1/1) ... [2021-10-24 10:23:15,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:23:15,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:23:15,973 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2021-10-24 10:23:16,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:16,078 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:23:16,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:23:16,150 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_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2021-10-24 10:23:16,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:16,183 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:23:16,254 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_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2021-10-24 10:23:16,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:16,306 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:23:16,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16 WrapperNode [2021-10-24 10:23:16,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:16,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:23:16,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:23:16,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:23:16,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:23:16,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:23:16,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:23:16,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:23:16,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:23:16,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:23:16,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:23:16,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:23:16,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (1/1) ... [2021-10-24 10:23:16,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:23:16,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:23:16,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:23:16,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:23:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:23:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:23:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:23:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:23:18,858 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:23:18,859 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-10-24 10:23:18,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:23:18 BoogieIcfgContainer [2021-10-24 10:23:18,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:23:18,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:23:18,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:23:18,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:23:18,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:23:15" (1/3) ... [2021-10-24 10:23:18,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6510e90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:23:18, skipping insertion in model container [2021-10-24 10:23:18,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:16" (2/3) ... [2021-10-24 10:23:18,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6510e90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:23:18, skipping insertion in model container [2021-10-24 10:23:18,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:23:18" (3/3) ... [2021-10-24 10:23:18,870 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2021-10-24 10:23:18,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:23:18,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:23:18,925 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:23:18,930 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 [2021-10-24 10:23:18,930 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:23:18,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 74 states have (on average 1.5810810810810811) internal successors, (117), 77 states have internal predecessors, (117), 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) [2021-10-24 10:23:18,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:23:18,952 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:18,953 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:23:18,953 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:18,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:18,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1424204181, now seen corresponding path program 1 times [2021-10-24 10:23:18,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:18,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397576712] [2021-10-24 10:23:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:18,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:18,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:18,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:18,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:23:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:23:19,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:23:19,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:23:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:19,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:23:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:19,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:23:19,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397576712] [2021-10-24 10:23:19,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397576712] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:23:19,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:23:19,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:23:19,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976120391] [2021-10-24 10:23:19,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:23:19,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:23:19,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:23:19,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:23:19,451 INFO L87 Difference]: Start difference. First operand has 78 states, 74 states have (on average 1.5810810810810811) internal successors, (117), 77 states have internal predecessors, (117), 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) [2021-10-24 10:23:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:23:19,508 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2021-10-24 10:23:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:23:19,510 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 [2021-10-24 10:23:19,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:23:19,524 INFO L225 Difference]: With dead ends: 150 [2021-10-24 10:23:19,524 INFO L226 Difference]: Without dead ends: 74 [2021-10-24 10:23:19,527 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:23:19,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-24 10:23:19,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-24 10:23:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 73 states have internal predecessors, (105), 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) [2021-10-24 10:23:19,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2021-10-24 10:23:19,606 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2021-10-24 10:23:19,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:23:19,607 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2021-10-24 10:23:19,607 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) [2021-10-24 10:23:19,608 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2021-10-24 10:23:19,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 10:23:19,610 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:19,610 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:23:19,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:23:19,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:19,825 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:19,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:19,826 INFO L82 PathProgramCache]: Analyzing trace with hash -631654862, now seen corresponding path program 1 times [2021-10-24 10:23:19,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:19,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16417543] [2021-10-24 10:23:19,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:19,828 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:19,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:19,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:19,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:23:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:23:20,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:23:20,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:23:20,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:20,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:23:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:20,233 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:23:20,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16417543] [2021-10-24 10:23:20,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16417543] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:23:20,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:23:20,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:23:20,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113216442] [2021-10-24 10:23:20,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:23:20,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:23:20,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:23:20,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:23:20,246 INFO L87 Difference]: Start difference. First operand 74 states and 105 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) [2021-10-24 10:23:20,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:23:20,279 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2021-10-24 10:23:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:23:20,280 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 [2021-10-24 10:23:20,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:23:20,282 INFO L225 Difference]: With dead ends: 74 [2021-10-24 10:23:20,283 INFO L226 Difference]: Without dead ends: 34 [2021-10-24 10:23:20,284 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:23:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-24 10:23:20,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-24 10:23:20,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 33 states have internal predecessors, (48), 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) [2021-10-24 10:23:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2021-10-24 10:23:20,295 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2021-10-24 10:23:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:23:20,295 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2021-10-24 10:23:20,297 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) [2021-10-24 10:23:20,297 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2021-10-24 10:23:20,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:23:20,299 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:20,306 INFO L512 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] [2021-10-24 10:23:20,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:23:20,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:20,520 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:20,520 INFO L82 PathProgramCache]: Analyzing trace with hash -964945646, now seen corresponding path program 1 times [2021-10-24 10:23:20,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:20,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126699832] [2021-10-24 10:23:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:20,522 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:20,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:20,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:20,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:23:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:23:20,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:23:20,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:23:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:20,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:23:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:20,904 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:23:20,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126699832] [2021-10-24 10:23:20,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126699832] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:23:20,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:23:20,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:23:20,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485357110] [2021-10-24 10:23:20,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:23:20,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:23:20,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:23:20,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:23:20,913 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 4 states, 4 states have (on average 6.25) 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) [2021-10-24 10:23:20,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:23:20,971 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2021-10-24 10:23:20,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:23:20,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) 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 22 [2021-10-24 10:23:20,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:23:20,973 INFO L225 Difference]: With dead ends: 62 [2021-10-24 10:23:20,973 INFO L226 Difference]: Without dead ends: 34 [2021-10-24 10:23:20,974 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:23:20,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-24 10:23:20,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-24 10:23:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 33 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:23:20,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2021-10-24 10:23:20,983 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2021-10-24 10:23:20,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:23:20,984 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2021-10-24 10:23:20,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) 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) [2021-10-24 10:23:20,984 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2021-10-24 10:23:20,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 10:23:20,985 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:20,985 INFO L512 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] [2021-10-24 10:23:21,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:23:21,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:21,208 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:21,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:21,208 INFO L82 PathProgramCache]: Analyzing trace with hash -952202930, now seen corresponding path program 1 times [2021-10-24 10:23:21,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:21,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96344889] [2021-10-24 10:23:21,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:21,210 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:21,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:21,211 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:21,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:23:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:23:21,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:23:21,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:23:21,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:21,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:23:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:21,552 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:23:21,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96344889] [2021-10-24 10:23:21,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96344889] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:23:21,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:23:21,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:23:21,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082103322] [2021-10-24 10:23:21,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:23:21,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:23:21,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:23:21,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:23:21,557 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-24 10:23:21,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:23:21,608 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2021-10-24 10:23:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:23:21,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2021-10-24 10:23:21,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:23:21,611 INFO L225 Difference]: With dead ends: 83 [2021-10-24 10:23:21,612 INFO L226 Difference]: Without dead ends: 55 [2021-10-24 10:23:21,612 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:23:21,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-24 10:23:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2021-10-24 10:23:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 52 states have internal predecessors, (74), 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) [2021-10-24 10:23:21,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2021-10-24 10:23:21,630 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2021-10-24 10:23:21,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:23:21,630 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2021-10-24 10:23:21,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-10-24 10:23:21,632 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2021-10-24 10:23:21,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-24 10:23:21,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:21,634 INFO L512 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] [2021-10-24 10:23:21,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:23:21,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:21,847 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:21,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:21,847 INFO L82 PathProgramCache]: Analyzing trace with hash -2049720417, now seen corresponding path program 1 times [2021-10-24 10:23:21,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:21,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296129044] [2021-10-24 10:23:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:21,849 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:21,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:21,850 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:21,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:23:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:23:22,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:23:22,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:23:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:22,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:23:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:22,241 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:23:22,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296129044] [2021-10-24 10:23:22,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296129044] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:23:22,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:23:22,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:23:22,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045295785] [2021-10-24 10:23:22,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:23:22,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:23:22,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:23:22,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:23:22,243 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-10-24 10:23:22,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:23:22,301 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2021-10-24 10:23:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:23:22,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 29 [2021-10-24 10:23:22,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:23:22,303 INFO L225 Difference]: With dead ends: 139 [2021-10-24 10:23:22,304 INFO L226 Difference]: Without dead ends: 92 [2021-10-24 10:23:22,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:23:22,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-24 10:23:22,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2021-10-24 10:23:22,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.4) internal successors, (77), 55 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:23:22,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2021-10-24 10:23:22,313 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2021-10-24 10:23:22,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:23:22,314 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2021-10-24 10:23:22,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-10-24 10:23:22,314 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2021-10-24 10:23:22,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-24 10:23:22,315 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:22,315 INFO L512 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] [2021-10-24 10:23:22,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:23:22,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:22,529 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:22,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:22,529 INFO L82 PathProgramCache]: Analyzing trace with hash 612790626, now seen corresponding path program 1 times [2021-10-24 10:23:22,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:22,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756938075] [2021-10-24 10:23:22,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:22,531 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:22,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:22,531 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:22,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:23:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:23:22,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:23:22,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:23:22,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:22,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:23:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:22,972 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:23:22,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756938075] [2021-10-24 10:23:22,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756938075] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:23:22,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:23:22,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 10:23:22,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269645153] [2021-10-24 10:23:22,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:23:22,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:23:22,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:23:22,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:23:22,975 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-10-24 10:23:23,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:23:23,094 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2021-10-24 10:23:23,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:23:23,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2021-10-24 10:23:23,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:23:23,098 INFO L225 Difference]: With dead ends: 270 [2021-10-24 10:23:23,098 INFO L226 Difference]: Without dead ends: 220 [2021-10-24 10:23:23,103 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 48.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:23:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-24 10:23:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 100. [2021-10-24 10:23:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.3838383838383839) internal successors, (137), 99 states have internal predecessors, (137), 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) [2021-10-24 10:23:23,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2021-10-24 10:23:23,121 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 29 [2021-10-24 10:23:23,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:23:23,122 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2021-10-24 10:23:23,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-10-24 10:23:23,122 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2021-10-24 10:23:23,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-24 10:23:23,123 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:23,124 INFO L512 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] [2021-10-24 10:23:23,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:23:23,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:23,340 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:23,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1166654740, now seen corresponding path program 1 times [2021-10-24 10:23:23,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:23,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562780110] [2021-10-24 10:23:23,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:23,342 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:23,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:23,343 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:23,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 10:23:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:23:23,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:23:23,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:23:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:23,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:23:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:23,799 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:23:23,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562780110] [2021-10-24 10:23:23,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562780110] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:23:23,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:23:23,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:23:23,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106727130] [2021-10-24 10:23:23,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:23:23,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:23:23,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:23:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:23:23,802 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-10-24 10:23:23,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:23:23,978 INFO L93 Difference]: Finished difference Result 280 states and 386 transitions. [2021-10-24 10:23:23,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:23:23,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2021-10-24 10:23:23,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:23:23,981 INFO L225 Difference]: With dead ends: 280 [2021-10-24 10:23:23,981 INFO L226 Difference]: Without dead ends: 278 [2021-10-24 10:23:23,982 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 49.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:23:23,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-24 10:23:24,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2021-10-24 10:23:24,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 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) [2021-10-24 10:23:24,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2021-10-24 10:23:24,010 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 30 [2021-10-24 10:23:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:23:24,010 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2021-10-24 10:23:24,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-10-24 10:23:24,011 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2021-10-24 10:23:24,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-24 10:23:24,012 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:24,012 INFO L512 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] [2021-10-24 10:23:24,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-24 10:23:24,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:24,229 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:24,229 INFO L82 PathProgramCache]: Analyzing trace with hash 72774503, now seen corresponding path program 1 times [2021-10-24 10:23:24,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:24,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157602691] [2021-10-24 10:23:24,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:24,230 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:24,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:24,232 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:24,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 10:23:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:23:24,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:23:24,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:23:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:24,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:23:24,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:24,649 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:23:24,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157602691] [2021-10-24 10:23:24,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157602691] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:23:24,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:23:24,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:23:24,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322266037] [2021-10-24 10:23:24,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:23:24,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:23:24,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:23:24,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:23:24,651 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2021-10-24 10:23:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:23:24,706 INFO L93 Difference]: Finished difference Result 276 states and 374 transitions. [2021-10-24 10:23:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:23:24,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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 30 [2021-10-24 10:23:24,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:23:24,708 INFO L225 Difference]: With dead ends: 276 [2021-10-24 10:23:24,709 INFO L226 Difference]: Without dead ends: 182 [2021-10-24 10:23:24,709 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 23.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:23:24,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-24 10:23:24,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 104. [2021-10-24 10:23:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3592233009708738) internal successors, (140), 103 states have internal predecessors, (140), 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) [2021-10-24 10:23:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 140 transitions. [2021-10-24 10:23:24,727 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 140 transitions. Word has length 30 [2021-10-24 10:23:24,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:23:24,727 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 140 transitions. [2021-10-24 10:23:24,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2021-10-24 10:23:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 140 transitions. [2021-10-24 10:23:24,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-24 10:23:24,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:24,729 INFO L512 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] [2021-10-24 10:23:24,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 10:23:24,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:24,945 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:24,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:24,945 INFO L82 PathProgramCache]: Analyzing trace with hash 330939941, now seen corresponding path program 1 times [2021-10-24 10:23:24,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:24,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404624644] [2021-10-24 10:23:24,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:24,946 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:24,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:24,947 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:24,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 10:23:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:23:25,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:23:25,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:23:25,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:25,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:23:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:23:25,366 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:23:25,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404624644] [2021-10-24 10:23:25,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404624644] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:23:25,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:23:25,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 10:23:25,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731240252] [2021-10-24 10:23:25,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:23:25,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:23:25,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:23:25,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:23:25,369 INFO L87 Difference]: Start difference. First operand 104 states and 140 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-24 10:23:25,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:23:25,431 INFO L93 Difference]: Finished difference Result 334 states and 452 transitions. [2021-10-24 10:23:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:23:25,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 30 [2021-10-24 10:23:25,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:23:25,433 INFO L225 Difference]: With dead ends: 334 [2021-10-24 10:23:25,433 INFO L226 Difference]: Without dead ends: 236 [2021-10-24 10:23:25,435 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:23:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-10-24 10:23:25,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 186. [2021-10-24 10:23:25,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.345945945945946) internal successors, (249), 185 states have internal predecessors, (249), 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) [2021-10-24 10:23:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 249 transitions. [2021-10-24 10:23:25,467 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 249 transitions. Word has length 30 [2021-10-24 10:23:25,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:23:25,467 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 249 transitions. [2021-10-24 10:23:25,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-24 10:23:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 249 transitions. [2021-10-24 10:23:25,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-24 10:23:25,474 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:23:25,475 INFO L512 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] [2021-10-24 10:23:25,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 10:23:25,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:25,687 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:23:25,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:23:25,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1676876253, now seen corresponding path program 1 times [2021-10-24 10:23:25,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:23:25,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215102662] [2021-10-24 10:23:25,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:23:25,688 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:23:25,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:23:25,689 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:23:25,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 10:23:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:23:27,397 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:23:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:23:28,891 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:23:28,891 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:23:28,892 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:23:28,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:23:28,894 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:23:28,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 10:23:29,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:23:29,123 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:23:29,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:23:29 BoogieIcfgContainer [2021-10-24 10:23:29,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:23:29,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:23:29,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:23:29,298 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:23:29,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:23:18" (3/4) ... [2021-10-24 10:23:29,302 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:23:29,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:23:29,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:23:29,436 INFO L168 Benchmark]: Toolchain (without parser) took 13858.47 ms. Allocated memory was 56.6 MB in the beginning and 94.4 MB in the end (delta: 37.7 MB). Free memory was 33.8 MB in the beginning and 34.8 MB in the end (delta: -1.0 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:29,437 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:23:29,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.04 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 33.7 MB in the beginning and 45.5 MB in the end (delta: -11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:29,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.80 ms. Allocated memory is still 77.6 MB. Free memory was 45.5 MB in the beginning and 42.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:29,438 INFO L168 Benchmark]: Boogie Preprocessor took 53.58 ms. Allocated memory is still 77.6 MB. Free memory was 42.4 MB in the beginning and 59.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:29,439 INFO L168 Benchmark]: RCFGBuilder took 2405.60 ms. Allocated memory is still 77.6 MB. Free memory was 59.8 MB in the beginning and 53.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:29,439 INFO L168 Benchmark]: TraceAbstraction took 10433.76 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 53.0 MB in the beginning and 47.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:29,439 INFO L168 Benchmark]: Witness Printer took 137.42 ms. Allocated memory is still 94.4 MB. Free memory was 47.8 MB in the beginning and 34.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:29,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 718.04 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 33.7 MB in the beginning and 45.5 MB in the end (delta: -11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.80 ms. Allocated memory is still 77.6 MB. Free memory was 45.5 MB in the beginning and 42.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.58 ms. Allocated memory is still 77.6 MB. Free memory was 42.4 MB in the beginning and 59.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2405.60 ms. Allocated memory is still 77.6 MB. Free memory was 59.8 MB in the beginning and 53.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10433.76 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 53.0 MB in the beginning and 47.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. * Witness Printer took 137.42 ms. Allocated memory is still 94.4 MB. Free memory was 47.8 MB in the beginning and 34.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 524]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int waterLevel = 1; [L535] int methaneLevelCritical = 0; [L699] int pumpRunning = 0; [L700] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L630] int splverifierCounter ; [L631] int tmp ; [L632] int tmp___0 ; [L633] int tmp___1 ; [L634] int tmp___2 ; [L637] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L639] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L641] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L647] tmp = __VERIFIER_nondet_int() [L649] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L552] COND TRUE waterLevel < 2 [L553] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L657] tmp___0 = __VERIFIER_nondet_int() [L659] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] COND FALSE !(\read(methaneLevelCritical)) [L567] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L667] tmp___2 = __VERIFIER_nondet_int() [L669] COND TRUE \read(tmp___2) [L855] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L707] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L714] COND TRUE \read(systemActive) [L736] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] COND TRUE ! pumpRunning [L833] int retValue_acc ; [L834] int tmp ; [L835] int tmp___0 ; [L614] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L617] COND FALSE !(waterLevel < 2) [L621] retValue_acc = 0 [L622] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L839] tmp = isHighWaterSensorDry() [L841] COND FALSE !(\read(tmp)) [L844] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L846] retValue_acc = tmp___0 [L847] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L741] tmp = isHighWaterLevel() [L743] COND TRUE \read(tmp) [L764] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L861] int tmp ; [L862] int tmp___0 ; [L573] int retValue_acc ; [L576] retValue_acc = methaneLevelCritical [L577] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L866] tmp = isMethaneLevelCritical() [L868] COND TRUE \read(tmp) [L788] int retValue_acc ; [L791] retValue_acc = pumpRunning [L792] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L870] tmp___0 = isPumpRunning() [L872] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L524] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 524]: 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: 524]: 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, 78 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10197.8ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 28.2ms, AutomataDifference: 763.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 583 SDtfs, 784 SDslu, 915 SDs, 0 SdLazy, 111 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 205.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 190.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 188.5ms AutomataMinimizationTime, 9 MinimizatonAttempts, 464 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 245.3ms SsaConstructionTime, 2494.1ms SatisfiabilityAnalysisTime, 1698.7ms InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 706 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1825 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! [2021-10-24 10:23:29,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91e3d0c6-c5d3-42ff-8d59-b4bcdd8e71af/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...