./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_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_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/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_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/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_b79cf915-3729-4b70-875a-4d865be88b66/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 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd ............................................................................................................................................ 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_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/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_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/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_b79cf915-3729-4b70-875a-4d865be88b66/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 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:39:52,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:39:52,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:39:52,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:39:52,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:39:52,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:39:52,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:39:52,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:39:52,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:39:52,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:39:52,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:39:52,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:39:52,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:39:52,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:39:52,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:39:52,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:39:52,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:39:52,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:39:52,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:39:52,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:39:52,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:39:52,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:39:52,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:39:52,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:39:52,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:39:52,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:39:52,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:39:52,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:39:52,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:39:52,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:39:52,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:39:52,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:39:52,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:39:52,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:39:52,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:39:52,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:39:52,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:39:52,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:39:52,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:39:52,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:39:52,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:39:52,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:39:52,811 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:39:52,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:39:52,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:39:52,813 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:39:52,813 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:39:52,813 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:39:52,813 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:39:52,813 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:39:52,814 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:39:52,814 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:39:52,815 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:39:52,815 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:39:52,815 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:39:52,816 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:39:52,816 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:39:52,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:39:52,817 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:39:52,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:39:52,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:39:52,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:39:52,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:39:52,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:39:52,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:39:52,818 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:39:52,819 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:39:52,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:39:52,819 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:39:52,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:39:52,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:39:52,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:39:52,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:39:52,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:39:52,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:39:52,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:39:52,822 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:39:52,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:39:52,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:39:52,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:39:52,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:39:52,823 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_b79cf915-3729-4b70-875a-4d865be88b66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd [2021-10-29 05:39:53,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:39:53,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:39:53,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:39:53,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:39:53,144 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:39:53,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-29 05:39:53,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data/a3c140788/383446252486467584430413be45525c/FLAG33af81593 [2021-10-29 05:39:53,954 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:39:53,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-29 05:39:53,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data/a3c140788/383446252486467584430413be45525c/FLAG33af81593 [2021-10-29 05:39:54,182 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data/a3c140788/383446252486467584430413be45525c [2021-10-29 05:39:54,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:39:54,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:39:54,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:39:54,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:39:54,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:39:54,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:39:54" (1/1) ... [2021-10-29 05:39:54,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab0d3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:54, skipping insertion in model container [2021-10-29 05:39:54,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:39:54" (1/1) ... [2021-10-29 05:39:54,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:39:54,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:39:54,593 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_b79cf915-3729-4b70-875a-4d865be88b66/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2021-10-29 05:39:54,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:39:54,659 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 05:39:54,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22ef86f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:54, skipping insertion in model container [2021-10-29 05:39:54,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:39:54,665 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:39:54,667 INFO L168 Benchmark]: Toolchain (without parser) took 471.98 ms. Allocated memory is still 94.4 MB. Free memory was 53.2 MB in the beginning and 67.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:39:54,668 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 94.4 MB. Free memory is still 70.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:39:54,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.15 ms. Allocated memory is still 94.4 MB. Free memory was 53.0 MB in the beginning and 67.4 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:39:54,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 94.4 MB. Free memory is still 70.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 468.15 ms. Allocated memory is still 94.4 MB. Free memory was 53.0 MB in the beginning and 67.4 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 78]: 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 05:39:57,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:39:57,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:39:57,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:39:57,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:39:57,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:39:57,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:39:57,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:39:57,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:39:57,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:39:57,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:39:57,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:39:57,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:39:57,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:39:57,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:39:57,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:39:57,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:39:57,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:39:57,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:39:57,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:39:57,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:39:57,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:39:57,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:39:57,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:39:57,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:39:57,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:39:57,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:39:57,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:39:57,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:39:57,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:39:57,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:39:57,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:39:57,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:39:57,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:39:57,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:39:57,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:39:57,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:39:57,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:39:57,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:39:57,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:39:57,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:39:57,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:39:57,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:39:57,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:39:57,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:39:57,312 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:39:57,312 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:39:57,312 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:39:57,313 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:39:57,313 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:39:57,313 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:39:57,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:39:57,316 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:39:57,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:39:57,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:39:57,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:39:57,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:39:57,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:39:57,318 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:39:57,318 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:39:57,318 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:39:57,319 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:39:57,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:39:57,319 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:39:57,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:39:57,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:39:57,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:39:57,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:39:57,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:39:57,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:39:57,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:39:57,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:39:57,322 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:39:57,322 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:39:57,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:39:57,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:39:57,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:39:57,323 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_b79cf915-3729-4b70-875a-4d865be88b66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd [2021-10-29 05:39:57,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:39:57,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:39:57,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:39:57,810 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:39:57,811 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:39:57,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-29 05:39:57,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data/900ab4d73/b4a5696807ce41b7965ead8ef189bcbf/FLAG37a560c1e [2021-10-29 05:39:58,625 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:39:58,626 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-29 05:39:58,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data/900ab4d73/b4a5696807ce41b7965ead8ef189bcbf/FLAG37a560c1e [2021-10-29 05:39:58,887 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/data/900ab4d73/b4a5696807ce41b7965ead8ef189bcbf [2021-10-29 05:39:58,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:39:58,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:39:58,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:39:58,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:39:58,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:39:58,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:39:58" (1/1) ... [2021-10-29 05:39:58,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1545f847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:58, skipping insertion in model container [2021-10-29 05:39:58,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:39:58" (1/1) ... [2021-10-29 05:39:58,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:39:58,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:39:59,315 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_b79cf915-3729-4b70-875a-4d865be88b66/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2021-10-29 05:39:59,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:39:59,364 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:39:59,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:39:59,461 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_b79cf915-3729-4b70-875a-4d865be88b66/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2021-10-29 05:39:59,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:39:59,477 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:39:59,552 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_b79cf915-3729-4b70-875a-4d865be88b66/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2021-10-29 05:39:59,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:39:59,612 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:39:59,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59 WrapperNode [2021-10-29 05:39:59,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:39:59,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:39:59,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:39:59,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:39:59,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:39:59,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:39:59,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:39:59,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:39:59,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:39:59,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:39:59,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:39:59,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:39:59,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (1/1) ... [2021-10-29 05:39:59,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:39:59,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:39:59,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:39:59,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:39:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:39:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:39:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:39:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:40:02,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:40:02,367 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-29 05:40:02,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:40:02 BoogieIcfgContainer [2021-10-29 05:40:02,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:40:02,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:40:02,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:40:02,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:40:02,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:39:58" (1/3) ... [2021-10-29 05:40:02,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b27746f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:40:02, skipping insertion in model container [2021-10-29 05:40:02,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:39:59" (2/3) ... [2021-10-29 05:40:02,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b27746f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:40:02, skipping insertion in model container [2021-10-29 05:40:02,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:40:02" (3/3) ... [2021-10-29 05:40:02,378 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2021-10-29 05:40:02,384 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:40:02,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 05:40:02,436 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:40:02,443 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 05:40:02,443 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 05:40:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 80 states have (on average 1.5875) internal successors, (127), 83 states have internal predecessors, (127), 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 05:40:02,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:40:02,480 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:02,480 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 05:40:02,481 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 05:40:02,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:02,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1673386384, now seen corresponding path program 1 times [2021-10-29 05:40:02,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:02,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441774033] [2021-10-29 05:40:02,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:02,504 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:02,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:02,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:02,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:40:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:02,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:40:02,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:02,869 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 05:40:02,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:02,967 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 05:40:02,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:02,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441774033] [2021-10-29 05:40:02,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441774033] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:02,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:02,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:40:02,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230866945] [2021-10-29 05:40:02,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:40:02,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:02,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:40:02,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:40:03,001 INFO L87 Difference]: Start difference. First operand has 84 states, 80 states have (on average 1.5875) internal successors, (127), 83 states have internal predecessors, (127), 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 05:40:03,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:03,044 INFO L93 Difference]: Finished difference Result 161 states and 246 transitions. [2021-10-29 05:40:03,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:40:03,046 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 05:40:03,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:03,061 INFO L225 Difference]: With dead ends: 161 [2021-10-29 05:40:03,062 INFO L226 Difference]: Without dead ends: 80 [2021-10-29 05:40:03,066 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 05:40:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-29 05:40:03,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-29 05:40:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 77 states have (on average 1.4935064935064934) internal successors, (115), 79 states have internal predecessors, (115), 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 05:40:03,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2021-10-29 05:40:03,120 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2021-10-29 05:40:03,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:03,121 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2021-10-29 05:40:03,122 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 05:40:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2021-10-29 05:40:03,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:40:03,124 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:03,124 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 05:40:03,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:03,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:03,337 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 05:40:03,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:03,338 INFO L85 PathProgramCache]: Analyzing trace with hash 572864739, now seen corresponding path program 1 times [2021-10-29 05:40:03,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:03,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255841810] [2021-10-29 05:40:03,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:03,340 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:03,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:03,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:03,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:40:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:03,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:40:03,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:03,615 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 05:40:03,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:03,685 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 05:40:03,685 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:03,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255841810] [2021-10-29 05:40:03,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255841810] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:03,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:03,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:40:03,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353837714] [2021-10-29 05:40:03,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:40:03,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:03,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:40:03,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:40:03,694 INFO L87 Difference]: Start difference. First operand 80 states and 115 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 05:40:03,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:03,731 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2021-10-29 05:40:03,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:40:03,732 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 05:40:03,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:03,735 INFO L225 Difference]: With dead ends: 80 [2021-10-29 05:40:03,735 INFO L226 Difference]: Without dead ends: 38 [2021-10-29 05:40:03,736 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 05:40:03,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-29 05:40:03,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-29 05:40:03,751 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 05:40:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2021-10-29 05:40:03,752 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2021-10-29 05:40:03,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:03,753 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2021-10-29 05:40:03,753 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 05:40:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2021-10-29 05:40:03,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:40:03,756 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:03,761 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 05:40:03,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:03,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:03,976 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 05:40:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:03,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2021-10-29 05:40:03,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:03,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520514852] [2021-10-29 05:40:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:03,978 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:03,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:03,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:04,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:40:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:04,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:40:04,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:04,328 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 05:40:04,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:04,445 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 05:40:04,445 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:04,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520514852] [2021-10-29 05:40:04,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520514852] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:04,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:04,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:40:04,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612633275] [2021-10-29 05:40:04,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:40:04,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:04,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:40:04,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:40:04,448 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 05:40:04,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:04,487 INFO L93 Difference]: Finished difference Result 124 states and 184 transitions. [2021-10-29 05:40:04,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:40:04,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 05:40:04,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:04,496 INFO L225 Difference]: With dead ends: 124 [2021-10-29 05:40:04,497 INFO L226 Difference]: Without dead ends: 93 [2021-10-29 05:40:04,498 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 05:40:04,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-29 05:40:04,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2021-10-29 05:40:04,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 57 states have internal predecessors, (85), 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 05:40:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2021-10-29 05:40:04,514 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 24 [2021-10-29 05:40:04,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:04,515 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2021-10-29 05:40:04,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 05:40:04,516 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2021-10-29 05:40:04,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:40:04,519 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:04,519 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 05:40:04,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:04,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:04,720 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 05:40:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:04,721 INFO L85 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2021-10-29 05:40:04,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:04,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834832497] [2021-10-29 05:40:04,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:04,723 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:04,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:04,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:04,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:40:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:04,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:40:04,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:05,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:40:05,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:05,096 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 05:40:05,096 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:05,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834832497] [2021-10-29 05:40:05,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834832497] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:05,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:05,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:40:05,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095217667] [2021-10-29 05:40:05,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:40:05,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:05,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:40:05,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:40:05,100 INFO L87 Difference]: Start difference. First operand 58 states and 85 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 05:40:05,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:05,173 INFO L93 Difference]: Finished difference Result 131 states and 195 transitions. [2021-10-29 05:40:05,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:40:05,173 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 05:40:05,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:05,176 INFO L225 Difference]: With dead ends: 131 [2021-10-29 05:40:05,177 INFO L226 Difference]: Without dead ends: 80 [2021-10-29 05:40:05,177 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 05:40:05,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-29 05:40:05,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2021-10-29 05:40:05,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 77 states have internal predecessors, (112), 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 05:40:05,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2021-10-29 05:40:05,204 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 25 [2021-10-29 05:40:05,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:05,205 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2021-10-29 05:40:05,205 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 05:40:05,205 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2021-10-29 05:40:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 05:40:05,207 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:05,208 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 05:40:05,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:05,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:05,422 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 05:40:05,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:05,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2021-10-29 05:40:05,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:05,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508121592] [2021-10-29 05:40:05,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:05,423 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:05,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:05,424 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:05,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:40:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:05,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:40:05,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:05,778 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 05:40:05,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:05,883 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 05:40:05,884 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:05,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508121592] [2021-10-29 05:40:05,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508121592] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:05,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:05,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:40:05,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919972545] [2021-10-29 05:40:05,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:40:05,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:05,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:40:05,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:40:05,886 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 05:40:06,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:06,009 INFO L93 Difference]: Finished difference Result 361 states and 530 transitions. [2021-10-29 05:40:06,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:40:06,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 05:40:06,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:06,013 INFO L225 Difference]: With dead ends: 361 [2021-10-29 05:40:06,013 INFO L226 Difference]: Without dead ends: 290 [2021-10-29 05:40:06,017 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:40:06,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-10-29 05:40:06,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 138. [2021-10-29 05:40:06,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.4233576642335766) internal successors, (195), 137 states have internal predecessors, (195), 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 05:40:06,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 195 transitions. [2021-10-29 05:40:06,049 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 195 transitions. Word has length 27 [2021-10-29 05:40:06,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:06,049 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 195 transitions. [2021-10-29 05:40:06,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 05:40:06,050 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 195 transitions. [2021-10-29 05:40:06,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 05:40:06,051 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:06,051 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 05:40:06,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:06,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:06,266 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 05:40:06,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:06,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1110481728, now seen corresponding path program 1 times [2021-10-29 05:40:06,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:06,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411324639] [2021-10-29 05:40:06,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:06,267 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:06,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:06,268 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:06,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:40:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:06,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:40:06,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:06,606 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 05:40:06,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:06,691 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 05:40:06,692 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:06,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411324639] [2021-10-29 05:40:06,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411324639] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:06,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:06,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:40:06,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545776256] [2021-10-29 05:40:06,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:40:06,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:06,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:40:06,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:40:06,695 INFO L87 Difference]: Start difference. First operand 138 states and 195 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 05:40:06,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:06,873 INFO L93 Difference]: Finished difference Result 499 states and 711 transitions. [2021-10-29 05:40:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:40:06,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2021-10-29 05:40:06,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:06,877 INFO L225 Difference]: With dead ends: 499 [2021-10-29 05:40:06,877 INFO L226 Difference]: Without dead ends: 368 [2021-10-29 05:40:06,879 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:40:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-10-29 05:40:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 136. [2021-10-29 05:40:06,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.4) internal successors, (189), 135 states have internal predecessors, (189), 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 05:40:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 189 transitions. [2021-10-29 05:40:06,906 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 189 transitions. Word has length 28 [2021-10-29 05:40:06,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:06,907 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 189 transitions. [2021-10-29 05:40:06,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 05:40:06,907 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 189 transitions. [2021-10-29 05:40:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:40:06,916 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:06,916 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:40:06,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:07,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:07,133 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:40:07,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2071146496, now seen corresponding path program 1 times [2021-10-29 05:40:07,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:07,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310709969] [2021-10-29 05:40:07,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:07,134 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:07,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:07,135 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:07,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 05:40:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:07,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:40:07,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:07,510 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 05:40:07,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:07,583 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 05:40:07,584 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:07,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310709969] [2021-10-29 05:40:07,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310709969] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:07,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:07,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:40:07,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050700047] [2021-10-29 05:40:07,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:40:07,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:07,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:40:07,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:40:07,587 INFO L87 Difference]: Start difference. First operand 136 states and 189 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 05:40:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:07,665 INFO L93 Difference]: Finished difference Result 401 states and 556 transitions. [2021-10-29 05:40:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:40:07,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 32 [2021-10-29 05:40:07,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:07,667 INFO L225 Difference]: With dead ends: 401 [2021-10-29 05:40:07,668 INFO L226 Difference]: Without dead ends: 272 [2021-10-29 05:40:07,668 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:40:07,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-29 05:40:07,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 142. [2021-10-29 05:40:07,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.3829787234042554) internal successors, (195), 141 states have internal predecessors, (195), 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 05:40:07,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2021-10-29 05:40:07,687 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 32 [2021-10-29 05:40:07,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:07,688 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2021-10-29 05:40:07,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 05:40:07,688 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2021-10-29 05:40:07,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:40:07,689 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:07,689 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:40:07,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:07,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:07,902 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:40:07,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:07,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1370081918, now seen corresponding path program 1 times [2021-10-29 05:40:07,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:07,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579497910] [2021-10-29 05:40:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:07,904 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:07,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:07,904 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:07,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 05:40:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:08,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:40:08,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:08,259 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 05:40:08,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:08,356 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 05:40:08,356 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:08,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579497910] [2021-10-29 05:40:08,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579497910] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:08,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:08,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:40:08,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078218901] [2021-10-29 05:40:08,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:40:08,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:08,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:40:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:40:08,359 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 05:40:08,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:08,435 INFO L93 Difference]: Finished difference Result 435 states and 595 transitions. [2021-10-29 05:40:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:40:08,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 32 [2021-10-29 05:40:08,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:08,438 INFO L225 Difference]: With dead ends: 435 [2021-10-29 05:40:08,438 INFO L226 Difference]: Without dead ends: 300 [2021-10-29 05:40:08,441 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:40:08,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-10-29 05:40:08,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 146. [2021-10-29 05:40:08,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.3724137931034484) internal successors, (199), 145 states have internal predecessors, (199), 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 05:40:08,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 199 transitions. [2021-10-29 05:40:08,465 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 199 transitions. Word has length 32 [2021-10-29 05:40:08,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:08,465 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 199 transitions. [2021-10-29 05:40:08,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 05:40:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 199 transitions. [2021-10-29 05:40:08,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:40:08,466 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:08,466 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:40:08,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:08,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:08,683 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:40:08,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:08,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1956887932, now seen corresponding path program 1 times [2021-10-29 05:40:08,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:08,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832278269] [2021-10-29 05:40:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:08,684 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:08,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:08,685 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:08,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 05:40:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:08,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:40:08,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:09,050 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 05:40:09,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:40:09,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:09,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832278269] [2021-10-29 05:40:09,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832278269] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:09,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:09,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:40:09,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974524350] [2021-10-29 05:40:09,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:40:09,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:09,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:40:09,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:40:09,175 INFO L87 Difference]: Start difference. First operand 146 states and 199 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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 05:40:09,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:09,270 INFO L93 Difference]: Finished difference Result 496 states and 679 transitions. [2021-10-29 05:40:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:40:09,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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 32 [2021-10-29 05:40:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:09,274 INFO L225 Difference]: With dead ends: 496 [2021-10-29 05:40:09,274 INFO L226 Difference]: Without dead ends: 357 [2021-10-29 05:40:09,274 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 05:40:09,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-10-29 05:40:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 269. [2021-10-29 05:40:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 268 states have (on average 1.3582089552238805) internal successors, (364), 268 states have internal predecessors, (364), 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 05:40:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 364 transitions. [2021-10-29 05:40:09,325 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 364 transitions. Word has length 32 [2021-10-29 05:40:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:09,325 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 364 transitions. [2021-10-29 05:40:09,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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 05:40:09,326 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 364 transitions. [2021-10-29 05:40:09,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:40:09,328 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:09,328 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:40:09,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:09,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:09,549 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:40:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:09,550 INFO L85 PathProgramCache]: Analyzing trace with hash 875175876, now seen corresponding path program 1 times [2021-10-29 05:40:09,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:09,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976801155] [2021-10-29 05:40:09,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:09,551 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:09,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:09,552 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:09,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 05:40:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:40:09,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:40:09,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:40:10,020 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 05:40:10,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:40:10,136 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 05:40:10,137 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:40:10,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976801155] [2021-10-29 05:40:10,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976801155] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:40:10,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:40:10,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:40:10,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227793212] [2021-10-29 05:40:10,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:40:10,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:40:10,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:40:10,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:40:10,139 INFO L87 Difference]: Start difference. First operand 269 states and 364 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:40:10,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:40:10,230 INFO L93 Difference]: Finished difference Result 419 states and 564 transitions. [2021-10-29 05:40:10,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:40:10,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 05:40:10,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:40:10,234 INFO L225 Difference]: With dead ends: 419 [2021-10-29 05:40:10,234 INFO L226 Difference]: Without dead ends: 417 [2021-10-29 05:40:10,235 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 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 05:40:10,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-10-29 05:40:10,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 323. [2021-10-29 05:40:10,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.3788819875776397) internal successors, (444), 322 states have internal predecessors, (444), 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 05:40:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 444 transitions. [2021-10-29 05:40:10,282 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 444 transitions. Word has length 33 [2021-10-29 05:40:10,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:40:10,282 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 444 transitions. [2021-10-29 05:40:10,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:40:10,283 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 444 transitions. [2021-10-29 05:40:10,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-29 05:40:10,284 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:40:10,284 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:40:10,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:10,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:10,497 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:40:10,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:40:10,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1646221848, now seen corresponding path program 1 times [2021-10-29 05:40:10,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:40:10,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79046949] [2021-10-29 05:40:10,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:40:10,499 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:40:10,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:40:10,500 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:40:10,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 05:40:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:40:11,901 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:40:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:40:13,074 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 05:40:13,074 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:40:13,075 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:40:13,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:40:13,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:40:13,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 05:40:13,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:40:13,302 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:40:13,305 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:40:13,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:40:13 BoogieIcfgContainer [2021-10-29 05:40:13,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:40:13,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:40:13,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:40:13,477 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:40:13,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:40:02" (3/4) ... [2021-10-29 05:40:13,480 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:40:13,663 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:40:13,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:40:13,674 INFO L168 Benchmark]: Toolchain (without parser) took 14781.73 ms. Allocated memory was 56.6 MB in the beginning and 92.3 MB in the end (delta: 35.7 MB). Free memory was 33.7 MB in the beginning and 53.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:40:13,675 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory is still 37.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:40:13,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.86 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 33.6 MB in the beginning and 44.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:40:13,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.23 ms. Allocated memory is still 75.5 MB. Free memory was 43.8 MB in the beginning and 40.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:40:13,676 INFO L168 Benchmark]: Boogie Preprocessor took 70.08 ms. Allocated memory is still 75.5 MB. Free memory was 40.9 MB in the beginning and 38.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:40:13,677 INFO L168 Benchmark]: RCFGBuilder took 2582.66 ms. Allocated memory is still 75.5 MB. Free memory was 38.5 MB in the beginning and 50.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:40:13,677 INFO L168 Benchmark]: TraceAbstraction took 11104.98 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 50.1 MB in the beginning and 33.6 MB in the end (delta: 16.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:40:13,677 INFO L168 Benchmark]: Witness Printer took 195.81 ms. Allocated memory is still 92.3 MB. Free memory was 33.6 MB in the beginning and 53.0 MB in the end (delta: -19.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:40:13,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory is still 37.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 713.86 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 33.6 MB in the beginning and 44.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.23 ms. Allocated memory is still 75.5 MB. Free memory was 43.8 MB in the beginning and 40.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.08 ms. Allocated memory is still 75.5 MB. Free memory was 40.9 MB in the beginning and 38.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2582.66 ms. Allocated memory is still 75.5 MB. Free memory was 38.5 MB in the beginning and 50.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11104.98 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 50.1 MB in the beginning and 33.6 MB in the end (delta: 16.4 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. * Witness Printer took 195.81 ms. Allocated memory is still 92.3 MB. Free memory was 33.6 MB in the beginning and 53.0 MB in the end (delta: -19.4 MB). Peak memory consumption was 8.4 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: 746]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L665] int methAndRunningLastTime ; [L751] int cleanupTimeShifts = 4; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L825] int retValue_acc ; [L826] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L733] int retValue_acc ; [L736] retValue_acc = 1 [L737] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int splverifierCounter ; [L599] int tmp ; [L600] int tmp___0 ; [L601] int tmp___1 ; [L602] int tmp___2 ; [L605] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L609] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] tmp = __VERIFIER_nondet_int() [L617] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L879] COND FALSE !(\read(methaneLevelCritical)) [L882] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] COND TRUE \read(systemActive) [L463] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] COND TRUE ! pumpRunning [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L929] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L932] COND FALSE !(waterLevel < 2) [L936] retValue_acc = 0 [L937] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isHighWaterSensorDry() [L568] COND FALSE !(\read(tmp)) [L571] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L468] tmp = isHighWaterLevel() [L470] COND TRUE \read(tmp) [L491] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L675] int tmp ; [L676] int tmp___0 ; [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L680] tmp = isMethaneLevelCritical() [L682] COND TRUE \read(tmp) [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L684] tmp___0 = isPumpRunning() [L686] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L687] COND FALSE !(\read(methAndRunningLastTime)) [L692] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L607] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L609] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] tmp = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L434] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L855] COND TRUE waterLevel > 0 [L856] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L441] COND TRUE \read(systemActive) [L463] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L466] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L675] int tmp ; [L676] int tmp___0 ; [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L680] tmp = isMethaneLevelCritical() [L682] COND TRUE \read(tmp) [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L684] tmp___0 = isPumpRunning() [L686] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L687] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L746] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - UnprovableResult [Line: 746]: 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: 746]: 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, 84 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10.8s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 719 SDtfs, 869 SDslu, 1287 SDs, 0 SdLazy, 132 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 536 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=10, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 887 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 938 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2048 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 05:40:13,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b79cf915-3729-4b70-875a-4d865be88b66/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...