./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a ............................................................................................................................................ 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_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:38:48,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:38:48,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:38:48,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:38:48,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:38:48,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:38:48,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:38:48,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:38:48,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:38:48,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:38:48,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:38:48,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:38:48,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:38:48,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:38:48,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:38:48,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:38:48,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:38:48,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:38:48,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:38:48,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:38:48,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:38:48,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:38:48,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:38:48,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:38:48,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:38:48,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:38:48,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:38:48,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:38:48,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:38:48,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:38:48,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:38:48,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:38:48,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:38:48,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:38:48,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:38:48,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:38:48,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:38:48,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:38:48,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:38:48,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:38:48,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:38:48,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:38:48,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:38:48,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:38:48,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:38:48,850 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:38:48,850 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:38:48,851 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:38:48,851 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:38:48,851 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:38:48,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:38:48,852 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:38:48,852 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:38:48,852 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:38:48,853 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:38:48,853 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:38:48,853 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:38:48,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:38:48,854 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:38:48,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:38:48,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:38:48,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:38:48,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:38:48,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:38:48,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:38:48,856 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:38:48,856 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:38:48,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:38:48,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:38:48,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:38:48,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:38:48,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:38:48,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:38:48,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:38:48,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:38:48,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:38:48,859 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:38:48,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:38:48,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:38:48,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:38:48,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:38:48,860 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_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a [2021-10-29 04:38:49,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:38:49,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:38:49,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:38:49,191 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:38:49,192 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:38:49,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-29 04:38:49,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data/40d3a1a49/74f3f84b8fe24be4854b9963f4d50693/FLAG804d533e6 [2021-10-29 04:38:49,863 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:38:49,863 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-29 04:38:49,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data/40d3a1a49/74f3f84b8fe24be4854b9963f4d50693/FLAG804d533e6 [2021-10-29 04:38:50,140 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data/40d3a1a49/74f3f84b8fe24be4854b9963f4d50693 [2021-10-29 04:38:50,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:38:50,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:38:50,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:38:50,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:38:50,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:38:50,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:38:50" (1/1) ... [2021-10-29 04:38:50,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c293f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:50, skipping insertion in model container [2021-10-29 04:38:50,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:38:50" (1/1) ... [2021-10-29 04:38:50,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:38:50,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:38:50,520 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_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-29 04:38:50,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:38:50,673 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-29 04:38:50,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66f7918e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:50, skipping insertion in model container [2021-10-29 04:38:50,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:38:50,675 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:38:50,678 INFO L168 Benchmark]: Toolchain (without parser) took 530.52 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 45.7 MB in the beginning and 79.8 MB in the end (delta: -34.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:38:50,680 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory was 63.0 MB in the beginning and 62.9 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:38:50,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.47 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 45.5 MB in the beginning and 79.8 MB in the end (delta: -34.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:38:50,685 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 83.9 MB. Free memory was 63.0 MB in the beginning and 62.9 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 527.47 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 45.5 MB in the beginning and 79.8 MB in the end (delta: -34.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 599]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:38:53,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:38:53,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:38:53,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:38:53,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:38:53,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:38:53,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:38:53,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:38:53,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:38:53,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:38:53,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:38:53,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:38:53,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:38:53,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:38:53,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:38:53,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:38:53,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:38:53,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:38:53,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:38:53,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:38:53,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:38:53,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:38:53,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:38:53,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:38:53,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:38:53,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:38:53,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:38:53,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:38:53,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:38:53,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:38:53,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:38:53,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:38:53,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:38:53,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:38:53,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:38:53,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:38:53,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:38:53,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:38:53,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:38:53,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:38:53,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:38:53,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:38:53,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:38:53,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:38:53,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:38:53,394 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:38:53,395 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:38:53,395 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:38:53,395 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:38:53,395 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:38:53,396 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:38:53,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:38:53,399 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:38:53,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:38:53,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:38:53,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:38:53,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:38:53,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:38:53,401 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:38:53,401 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:38:53,401 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:38:53,401 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:38:53,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:38:53,402 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:38:53,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:38:53,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:38:53,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:38:53,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:38:53,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:38:53,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:38:53,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:38:53,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:38:53,405 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:38:53,405 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:38:53,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:38:53,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:38:53,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:38:53,406 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_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a [2021-10-29 04:38:53,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:38:53,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:38:53,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:38:53,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:38:53,870 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:38:53,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-29 04:38:53,964 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data/4fe1eae88/3ed398601d9049ceb25a96b4d73e435a/FLAGe7d86f148 [2021-10-29 04:38:54,576 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:38:54,577 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-29 04:38:54,593 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data/4fe1eae88/3ed398601d9049ceb25a96b4d73e435a/FLAGe7d86f148 [2021-10-29 04:38:54,923 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/data/4fe1eae88/3ed398601d9049ceb25a96b4d73e435a [2021-10-29 04:38:54,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:38:54,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:38:54,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:38:54,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:38:54,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:38:54,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:38:54" (1/1) ... [2021-10-29 04:38:54,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dac0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:54, skipping insertion in model container [2021-10-29 04:38:54,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:38:54" (1/1) ... [2021-10-29 04:38:54,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:38:55,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:38:55,298 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_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-29 04:38:55,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:38:55,439 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:38:55,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:38:55,488 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_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-29 04:38:55,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:38:55,527 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:38:55,614 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_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-29 04:38:55,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:38:55,700 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:38:55,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55 WrapperNode [2021-10-29 04:38:55,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:38:55,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:38:55,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:38:55,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:38:55,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:38:55,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:38:55,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:38:55,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:38:55,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:38:55,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:38:55,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:38:55,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:38:55,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (1/1) ... [2021-10-29 04:38:55,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:38:55,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:38:55,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:38:55,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:38:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:38:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:38:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:38:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:38:58,374 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:38:58,375 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-10-29 04:38:58,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:38:58 BoogieIcfgContainer [2021-10-29 04:38:58,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:38:58,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:38:58,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:38:58,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:38:58,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:38:54" (1/3) ... [2021-10-29 04:38:58,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c604bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:38:58, skipping insertion in model container [2021-10-29 04:38:58,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:38:55" (2/3) ... [2021-10-29 04:38:58,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c604bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:38:58, skipping insertion in model container [2021-10-29 04:38:58,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:38:58" (3/3) ... [2021-10-29 04:38:58,387 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2021-10-29 04:38:58,393 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:38:58,393 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 04:38:58,454 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:38:58,460 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:38:58,461 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:38:58,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:38:58,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:38:58,493 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:38:58,493 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:38:58,494 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:38:58,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:38:58,501 INFO L85 PathProgramCache]: Analyzing trace with hash 625606487, now seen corresponding path program 1 times [2021-10-29 04:38:58,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:38:58,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168965554] [2021-10-29 04:38:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:38:58,537 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:38:58,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:38:58,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:38:58,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:38:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:38:58,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:38:58,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:38:58,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:38:58,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:38:58,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:38:58,996 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:38:58,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168965554] [2021-10-29 04:38:58,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168965554] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:38:58,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:38:58,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:38:59,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675140501] [2021-10-29 04:38:59,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:38:59,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:38:59,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:38:59,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:38:59,027 INFO L87 Difference]: Start difference. First operand has 86 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 85 states have internal predecessors, (129), 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 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:38:59,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:38:59,069 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2021-10-29 04:38:59,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:38:59,070 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2021-10-29 04:38:59,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:38:59,086 INFO L225 Difference]: With dead ends: 166 [2021-10-29 04:38:59,086 INFO L226 Difference]: Without dead ends: 82 [2021-10-29 04:38:59,090 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:38:59,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-29 04:38:59,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-10-29 04:38:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 79 states have (on average 1.481012658227848) internal successors, (117), 81 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) [2021-10-29 04:38:59,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2021-10-29 04:38:59,152 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2021-10-29 04:38:59,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:38:59,153 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2021-10-29 04:38:59,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:38:59,154 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2021-10-29 04:38:59,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:38:59,156 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:38:59,156 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:38:59,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:38:59,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:38:59,376 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:38:59,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:38:59,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1306218461, now seen corresponding path program 1 times [2021-10-29 04:38:59,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:38:59,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878103467] [2021-10-29 04:38:59,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:38:59,382 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:38:59,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:38:59,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:38:59,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:38:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:38:59,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:38:59,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:38:59,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:38:59,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:38:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:38:59,807 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:38:59,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878103467] [2021-10-29 04:38:59,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878103467] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:38:59,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:38:59,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:38:59,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175339283] [2021-10-29 04:38:59,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:38:59,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:38:59,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:38:59,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:38:59,818 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:38:59,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:38:59,850 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2021-10-29 04:38:59,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:38:59,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-29 04:38:59,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:38:59,856 INFO L225 Difference]: With dead ends: 82 [2021-10-29 04:38:59,856 INFO L226 Difference]: Without dead ends: 38 [2021-10-29 04:38:59,858 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:38:59,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-29 04:38:59,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-29 04:38:59,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 37 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:38:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2021-10-29 04:38:59,870 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2021-10-29 04:38:59,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:38:59,871 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2021-10-29 04:38:59,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:38:59,871 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2021-10-29 04:38:59,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:38:59,873 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:38:59,877 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:38:59,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:39:00,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:39:00,094 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:39:00,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:39:00,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2021-10-29 04:39:00,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:39:00,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309687910] [2021-10-29 04:39:00,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:00,096 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:39:00,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:39:00,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:39:00,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:39:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:39:00,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:39:00,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:39:00,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:00,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:39:00,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:00,530 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:39:00,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309687910] [2021-10-29 04:39:00,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309687910] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:39:00,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:39:00,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:39:00,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119883036] [2021-10-29 04:39:00,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:39:00,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:39:00,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:39:00,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:39:00,534 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:39:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:39:00,573 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2021-10-29 04:39:00,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:39:00,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-29 04:39:00,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:39:00,579 INFO L225 Difference]: With dead ends: 127 [2021-10-29 04:39:00,579 INFO L226 Difference]: Without dead ends: 95 [2021-10-29 04:39:00,580 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:39:00,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-29 04:39:00,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2021-10-29 04:39:00,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 58 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:39:00,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2021-10-29 04:39:00,603 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2021-10-29 04:39:00,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:39:00,604 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2021-10-29 04:39:00,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:39:00,605 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2021-10-29 04:39:00,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 04:39:00,608 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:39:00,608 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:39:00,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:39:00,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:39:00,823 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:39:00,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:39:00,824 INFO L85 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2021-10-29 04:39:00,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:39:00,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405456921] [2021-10-29 04:39:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:00,825 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:39:00,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:39:00,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:39:00,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:39:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:39:01,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:39:01,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:39:01,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:01,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:39:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:01,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:39:01,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405456921] [2021-10-29 04:39:01,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405456921] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:39:01,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:39:01,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:39:01,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857649644] [2021-10-29 04:39:01,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:39:01,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:39:01,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:39:01,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:39:01,204 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:39:01,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:39:01,256 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2021-10-29 04:39:01,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:39:01,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-29 04:39:01,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:39:01,258 INFO L225 Difference]: With dead ends: 135 [2021-10-29 04:39:01,258 INFO L226 Difference]: Without dead ends: 82 [2021-10-29 04:39:01,259 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:39:01,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-29 04:39:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2021-10-29 04:39:01,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:39:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2021-10-29 04:39:01,271 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2021-10-29 04:39:01,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:39:01,272 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2021-10-29 04:39:01,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:39:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2021-10-29 04:39:01,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:39:01,274 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:39:01,274 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:39:01,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:39:01,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:39:01,491 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:39:01,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:39:01,492 INFO L85 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2021-10-29 04:39:01,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:39:01,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298874832] [2021-10-29 04:39:01,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:01,493 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:39:01,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:39:01,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:39:01,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:39:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:39:01,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:39:01,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:39:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:01,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:39:01,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:39:01,960 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:39:01,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298874832] [2021-10-29 04:39:01,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298874832] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:39:01,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:39:01,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 04:39:01,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82127971] [2021-10-29 04:39:01,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:39:01,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:39:01,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:39:01,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:39:01,963 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:39:02,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:39:02,373 INFO L93 Difference]: Finished difference Result 840 states and 1240 transitions. [2021-10-29 04:39:02,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 04:39:02,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-29 04:39:02,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:39:02,380 INFO L225 Difference]: With dead ends: 840 [2021-10-29 04:39:02,380 INFO L226 Difference]: Without dead ends: 766 [2021-10-29 04:39:02,382 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-29 04:39:02,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-10-29 04:39:02,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 209. [2021-10-29 04:39:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.4134615384615385) internal successors, (294), 208 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:39:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 294 transitions. [2021-10-29 04:39:02,421 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 294 transitions. Word has length 27 [2021-10-29 04:39:02,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:39:02,421 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 294 transitions. [2021-10-29 04:39:02,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:39:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 294 transitions. [2021-10-29 04:39:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:39:02,423 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:39:02,424 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:39:02,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:39:02,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:39:02,637 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:39:02,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:39:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2021-10-29 04:39:02,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:39:02,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134528747] [2021-10-29 04:39:02,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:39:02,638 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:39:02,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:39:02,639 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:39:02,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:39:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:39:04,372 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:39:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:39:05,567 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 04:39:05,567 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:39:05,569 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:39:05,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:39:05,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:39:05,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:39:05,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:39:05,785 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-29 04:39:05,789 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:39:05,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:39:05 BoogieIcfgContainer [2021-10-29 04:39:05,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:39:05,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:39:05,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:39:05,910 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:39:05,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:38:58" (3/4) ... [2021-10-29 04:39:05,913 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:39:05,994 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:39:05,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:39:05,996 INFO L168 Benchmark]: Toolchain (without parser) took 11067.28 ms. Allocated memory was 60.8 MB in the beginning and 104.9 MB in the end (delta: 44.0 MB). Free memory was 39.4 MB in the beginning and 63.6 MB in the end (delta: -24.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:39:05,996 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 60.8 MB. Free memory is still 42.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:39:05,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.46 ms. Allocated memory is still 60.8 MB. Free memory was 39.3 MB in the beginning and 29.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:39:05,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.68 ms. Allocated memory is still 60.8 MB. Free memory was 29.6 MB in the beginning and 26.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:39:05,997 INFO L168 Benchmark]: Boogie Preprocessor took 100.20 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 26.6 MB in the beginning and 67.1 MB in the end (delta: -40.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:39:05,998 INFO L168 Benchmark]: RCFGBuilder took 2479.31 ms. Allocated memory is still 86.0 MB. Free memory was 67.1 MB in the beginning and 39.4 MB in the end (delta: 27.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:39:05,999 INFO L168 Benchmark]: TraceAbstraction took 7529.57 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 39.4 MB in the beginning and 75.1 MB in the end (delta: -35.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:39:05,999 INFO L168 Benchmark]: Witness Printer took 83.94 ms. Allocated memory is still 104.9 MB. Free memory was 75.1 MB in the beginning and 63.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:39:06,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 60.8 MB. Free memory is still 42.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 772.46 ms. Allocated memory is still 60.8 MB. Free memory was 39.3 MB in the beginning and 29.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.68 ms. Allocated memory is still 60.8 MB. Free memory was 29.6 MB in the beginning and 26.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.20 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 26.6 MB in the beginning and 67.1 MB in the end (delta: -40.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2479.31 ms. Allocated memory is still 86.0 MB. Free memory was 67.1 MB in the beginning and 39.4 MB in the end (delta: 27.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7529.57 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 39.4 MB in the beginning and 75.1 MB in the end (delta: -35.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * Witness Printer took 83.94 ms. Allocated memory is still 104.9 MB. Free memory was 75.1 MB in the beginning and 63.6 MB in the end (delta: 11.5 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 566]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L740] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L410] int retValue_acc ; [L411] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L553] int retValue_acc ; [L556] retValue_acc = 1 [L557] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L451] COND TRUE waterLevel < 2 [L452] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L99] tmp___1 = __VERIFIER_nondet_int() [L101] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L286] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L145] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L301] int tmp ; [L302] int tmp___0 ; [L303] int tmp___1 ; [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] tmp = isMethaneLevelCritical() [L309] COND FALSE !(\read(tmp)) [L504] int retValue_acc ; [L507] retValue_acc = waterLevel [L508] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L313] tmp___0 = getWaterLevel() [L315] COND TRUE tmp___0 == 2 [L219] int retValue_acc ; [L222] retValue_acc = pumpRunning [L223] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L317] tmp___1 = isPumpRunning() [L319] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 566]: 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: 566]: 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, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 831 SDslu, 707 SDs, 0 SdLazy, 130 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 595 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 422 SizeOfPredicates, 4 NumberOfNonLiveVariables, 994 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:39:06,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8aafbd-9b9f-4f73-96b9-f8faf16c7086/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...