./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e ............................................................................................................................................ 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_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:43:09,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:43:09,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:43:09,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:43:09,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:43:09,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:43:09,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:43:09,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:43:09,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:43:09,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:43:09,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:43:09,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:43:09,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:43:09,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:43:09,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:43:09,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:43:09,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:43:09,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:43:09,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:43:09,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:43:09,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:43:09,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:43:09,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:43:09,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:43:09,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:43:09,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:43:09,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:43:09,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:43:09,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:43:09,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:43:09,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:43:09,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:43:09,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:43:09,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:43:09,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:43:09,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:43:09,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:43:09,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:43:09,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:43:09,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:43:09,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:43:09,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:43:09,669 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:43:09,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:43:09,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:43:09,671 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:43:09,671 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:43:09,671 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:43:09,671 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:43:09,671 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:43:09,671 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:43:09,672 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:43:09,672 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:43:09,672 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:43:09,672 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:43:09,672 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:43:09,673 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:43:09,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:43:09,673 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:43:09,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:43:09,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:43:09,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:43:09,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:43:09,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:43:09,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:43:09,675 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:43:09,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:43:09,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:43:09,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:43:09,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:43:09,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:43:09,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:43:09,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:43:09,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:43:09,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:43:09,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:43:09,684 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:43:09,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:43:09,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:43:09,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:43:09,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:43:09,686 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_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e [2021-10-24 10:43:09,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:43:09,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:43:09,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:43:09,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:43:09,976 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:43:09,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2021-10-24 10:43:10,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data/928c09368/f14698cd8c4240a8b472e019d063a3c5/FLAG93a5fa622 [2021-10-24 10:43:10,557 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:43:10,558 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2021-10-24 10:43:10,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data/928c09368/f14698cd8c4240a8b472e019d063a3c5/FLAG93a5fa622 [2021-10-24 10:43:10,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data/928c09368/f14698cd8c4240a8b472e019d063a3c5 [2021-10-24 10:43:10,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:43:10,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:43:10,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:43:10,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:43:10,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:43:10,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:43:10" (1/1) ... [2021-10-24 10:43:10,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc5b95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:10, skipping insertion in model container [2021-10-24 10:43:10,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:43:10" (1/1) ... [2021-10-24 10:43:10,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:43:10,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:43:11,095 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_7086e4e9-583a-4fea-bfba-2747e7d8419f/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c[1605,1618] [2021-10-24 10:43:11,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:43:11,241 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 10:43:11,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22682045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:11, skipping insertion in model container [2021-10-24 10:43:11,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:43:11,248 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:43:11,251 INFO L168 Benchmark]: Toolchain (without parser) took 378.91 ms. Allocated memory is still 109.1 MB. Free memory was 70.4 MB in the beginning and 81.3 MB in the end (delta: -10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:11,252 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 109.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:43:11,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.79 ms. Allocated memory is still 109.1 MB. Free memory was 70.2 MB in the beginning and 81.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:11,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 109.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.79 ms. Allocated memory is still 109.1 MB. Free memory was 70.2 MB in the beginning and 81.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 87]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:43:13,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:43:13,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:43:13,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:43:13,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:43:13,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:43:13,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:43:13,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:43:13,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:43:13,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:43:13,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:43:13,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:43:13,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:43:13,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:43:13,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:43:13,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:43:13,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:43:13,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:43:13,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:43:13,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:43:13,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:43:13,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:43:13,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:43:13,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:43:13,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:43:13,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:43:13,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:43:13,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:43:13,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:43:13,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:43:13,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:43:13,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:43:13,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:43:13,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:43:13,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:43:13,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:43:13,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:43:13,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:43:13,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:43:13,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:43:13,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:43:13,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:43:13,462 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:43:13,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:43:13,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:43:13,464 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:43:13,464 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:43:13,464 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:43:13,464 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:43:13,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:43:13,464 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:43:13,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:43:13,467 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:43:13,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:43:13,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:43:13,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:43:13,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:43:13,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:43:13,468 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:43:13,468 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:43:13,468 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:43:13,468 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:43:13,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:43:13,469 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:43:13,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:43:13,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:43:13,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:43:13,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:43:13,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:43:13,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:43:13,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:43:13,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:43:13,471 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:43:13,471 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:43:13,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:43:13,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:43:13,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:43:13,472 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_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e [2021-10-24 10:43:13,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:43:13,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:43:13,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:43:13,835 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:43:13,835 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:43:13,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2021-10-24 10:43:13,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data/b8073a966/74852de8602844bc9c2b6fff07ff329b/FLAG7267ff576 [2021-10-24 10:43:14,507 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:43:14,510 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2021-10-24 10:43:14,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data/b8073a966/74852de8602844bc9c2b6fff07ff329b/FLAG7267ff576 [2021-10-24 10:43:14,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/data/b8073a966/74852de8602844bc9c2b6fff07ff329b [2021-10-24 10:43:14,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:43:14,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:43:14,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:43:14,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:43:14,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:43:14,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:43:14" (1/1) ... [2021-10-24 10:43:14,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7aea71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:14, skipping insertion in model container [2021-10-24 10:43:14,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:43:14" (1/1) ... [2021-10-24 10:43:14,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:43:14,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:43:15,042 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_7086e4e9-583a-4fea-bfba-2747e7d8419f/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c[1605,1618] [2021-10-24 10:43:15,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:43:15,246 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:43:15,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:43:15,273 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_7086e4e9-583a-4fea-bfba-2747e7d8419f/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c[1605,1618] [2021-10-24 10:43:15,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:43:15,379 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:43:15,391 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_7086e4e9-583a-4fea-bfba-2747e7d8419f/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c[1605,1618] [2021-10-24 10:43:15,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:43:15,485 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:43:15,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15 WrapperNode [2021-10-24 10:43:15,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:43:15,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:43:15,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:43:15,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:43:15,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:43:15,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:43:15,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:43:15,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:43:15,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:43:15,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:43:15,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:43:15,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:43:15,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (1/1) ... [2021-10-24 10:43:15,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:43:15,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:43:15,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:43:15,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:43:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:43:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:43:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:43:15,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:43:17,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:43:17,731 INFO L299 CfgBuilder]: Removed 108 assume(true) statements. [2021-10-24 10:43:17,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:43:17 BoogieIcfgContainer [2021-10-24 10:43:17,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:43:17,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:43:17,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:43:17,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:43:17,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:43:14" (1/3) ... [2021-10-24 10:43:17,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6559cd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:43:17, skipping insertion in model container [2021-10-24 10:43:17,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:43:15" (2/3) ... [2021-10-24 10:43:17,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6559cd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:43:17, skipping insertion in model container [2021-10-24 10:43:17,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:43:17" (3/3) ... [2021-10-24 10:43:17,742 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2021-10-24 10:43:17,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:43:17,747 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:43:17,805 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:43:17,818 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:43:17,818 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:43:17,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:17,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:43:17,842 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:43:17,842 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:43:17,843 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:43:17,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:43:17,848 INFO L82 PathProgramCache]: Analyzing trace with hash -386332649, now seen corresponding path program 1 times [2021-10-24 10:43:17,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:43:17,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83607047] [2021-10-24 10:43:17,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:43:17,862 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:43:17,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:43:17,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:43:17,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:43:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:43:18,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:43:18,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:43:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:18,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:43:18,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:18,300 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:43:18,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83607047] [2021-10-24 10:43:18,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83607047] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:43:18,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:43:18,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:43:18,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218933425] [2021-10-24 10:43:18,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:43:18,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:43:18,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:43:18,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:43:18,326 INFO L87 Difference]: Start difference. First operand has 86 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:43:18,364 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2021-10-24 10:43:18,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:43:18,366 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 [2021-10-24 10:43:18,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:43:18,382 INFO L225 Difference]: With dead ends: 166 [2021-10-24 10:43:18,383 INFO L226 Difference]: Without dead ends: 82 [2021-10-24 10:43:18,387 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:43:18,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-24 10:43:18,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-10-24 10:43:18,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 79 states have (on average 1.481012658227848) internal successors, (117), 81 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2021-10-24 10:43:18,438 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2021-10-24 10:43:18,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:43:18,438 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2021-10-24 10:43:18,439 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) [2021-10-24 10:43:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2021-10-24 10:43:18,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:43:18,440 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:43:18,440 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:43:18,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:43:18,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:43:18,660 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:43:18,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:43:18,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1847726980, now seen corresponding path program 1 times [2021-10-24 10:43:18,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:43:18,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824338401] [2021-10-24 10:43:18,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:43:18,669 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:43:18,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:43:18,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:43:18,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:43:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:43:18,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:43:18,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:43:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:18,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:43:19,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:19,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:43:19,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824338401] [2021-10-24 10:43:19,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824338401] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:43:19,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:43:19,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:43:19,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191233541] [2021-10-24 10:43:19,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:43:19,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:43:19,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:43:19,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:43:19,012 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:19,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:43:19,041 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2021-10-24 10:43:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:43:19,043 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 [2021-10-24 10:43:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:43:19,045 INFO L225 Difference]: With dead ends: 82 [2021-10-24 10:43:19,045 INFO L226 Difference]: Without dead ends: 38 [2021-10-24 10:43:19,047 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:43:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-24 10:43:19,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-24 10:43:19,060 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) [2021-10-24 10:43:19,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2021-10-24 10:43:19,060 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2021-10-24 10:43:19,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:43:19,061 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2021-10-24 10:43:19,062 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) [2021-10-24 10:43:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2021-10-24 10:43:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:43:19,063 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:43:19,066 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:43:19,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:43:19,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:43:19,280 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:43:19,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:43:19,283 INFO L82 PathProgramCache]: Analyzing trace with hash 2067739700, now seen corresponding path program 1 times [2021-10-24 10:43:19,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:43:19,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165513080] [2021-10-24 10:43:19,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:43:19,288 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:43:19,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:43:19,291 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:43:19,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:43:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:43:19,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:43:19,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:43:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:19,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:43:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:19,659 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:43:19,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165513080] [2021-10-24 10:43:19,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165513080] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:43:19,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:43:19,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:43:19,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915371802] [2021-10-24 10:43:19,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:43:19,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:43:19,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:43:19,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:43:19,662 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand has 4 states, 4 states have (on average 6.75) 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) [2021-10-24 10:43:19,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:43:19,731 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2021-10-24 10:43:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:43:19,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) 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 24 [2021-10-24 10:43:19,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:43:19,733 INFO L225 Difference]: With dead ends: 127 [2021-10-24 10:43:19,733 INFO L226 Difference]: Without dead ends: 95 [2021-10-24 10:43:19,734 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:43:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-24 10:43:19,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2021-10-24 10:43:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 58 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:19,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2021-10-24 10:43:19,748 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2021-10-24 10:43:19,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:43:19,753 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2021-10-24 10:43:19,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) 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) [2021-10-24 10:43:19,753 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2021-10-24 10:43:19,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:43:19,754 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:43:19,754 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:43:19,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:43:19,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:43:19,957 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:43:19,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:43:19,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1859072455, now seen corresponding path program 1 times [2021-10-24 10:43:19,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:43:19,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866803275] [2021-10-24 10:43:19,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:43:19,965 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:43:19,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:43:19,969 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:43:20,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:43:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:43:20,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:43:20,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:43:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:20,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:43:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:20,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:43:20,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866803275] [2021-10-24 10:43:20,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866803275] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:43:20,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:43:20,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:43:20,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018623388] [2021-10-24 10:43:20,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:43:20,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:43:20,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:43:20,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:43:20,327 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:20,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:43:20,383 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2021-10-24 10:43:20,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:43:20,383 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 [2021-10-24 10:43:20,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:43:20,384 INFO L225 Difference]: With dead ends: 135 [2021-10-24 10:43:20,384 INFO L226 Difference]: Without dead ends: 82 [2021-10-24 10:43:20,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:43:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-24 10:43:20,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2021-10-24 10:43:20,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2021-10-24 10:43:20,396 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2021-10-24 10:43:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:43:20,396 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2021-10-24 10:43:20,396 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) [2021-10-24 10:43:20,396 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2021-10-24 10:43:20,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:43:20,397 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:43:20,397 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:43:20,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:43:20,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:43:20,609 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:43:20,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:43:20,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1504399113, now seen corresponding path program 1 times [2021-10-24 10:43:20,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:43:20,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361323952] [2021-10-24 10:43:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:43:20,612 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:43:20,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:43:20,613 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:43:20,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:43:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:43:20,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:43:20,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:43:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:20,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:43:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:43:21,048 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:43:21,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361323952] [2021-10-24 10:43:21,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361323952] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:43:21,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:43:21,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 10:43:21,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808927915] [2021-10-24 10:43:21,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:43:21,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:43:21,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:43:21,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:43:21,051 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:21,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:43:21,378 INFO L93 Difference]: Finished difference Result 840 states and 1240 transitions. [2021-10-24 10:43:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 10:43:21,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 10:43:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:43:21,384 INFO L225 Difference]: With dead ends: 840 [2021-10-24 10:43:21,384 INFO L226 Difference]: Without dead ends: 766 [2021-10-24 10:43:21,386 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 124.3ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 10:43:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-10-24 10:43:21,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 209. [2021-10-24 10:43:21,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.4134615384615385) internal successors, (294), 208 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:21,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 294 transitions. [2021-10-24 10:43:21,430 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 294 transitions. Word has length 27 [2021-10-24 10:43:21,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:43:21,431 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 294 transitions. [2021-10-24 10:43:21,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:43:21,432 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 294 transitions. [2021-10-24 10:43:21,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:43:21,437 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:43:21,437 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:43:21,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:43:21,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:43:21,650 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:43:21,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:43:21,652 INFO L82 PathProgramCache]: Analyzing trace with hash -195864629, now seen corresponding path program 1 times [2021-10-24 10:43:21,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:43:21,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696454669] [2021-10-24 10:43:21,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:43:21,655 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:43:21,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:43:21,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:43:21,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:43:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:43:22,764 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:43:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:43:23,715 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:43:23,716 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:43:23,717 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:43:23,718 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:43:23,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:43:23,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:43:23,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:43:23,974 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:43:24,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:43:24 BoogieIcfgContainer [2021-10-24 10:43:24,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:43:24,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:43:24,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:43:24,109 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:43:24,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:43:17" (3/4) ... [2021-10-24 10:43:24,111 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:43:24,234 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:43:24,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:43:24,238 INFO L168 Benchmark]: Toolchain (without parser) took 9409.76 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 48.3 MB in the beginning and 52.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:24,239 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:43:24,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.57 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 39.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:24,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.23 ms. Allocated memory is still 71.3 MB. Free memory was 39.4 MB in the beginning and 36.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:24,240 INFO L168 Benchmark]: Boogie Preprocessor took 57.06 ms. Allocated memory is still 71.3 MB. Free memory was 36.4 MB in the beginning and 53.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:24,240 INFO L168 Benchmark]: RCFGBuilder took 2127.25 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 53.5 MB in the beginning and 68.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:24,241 INFO L168 Benchmark]: TraceAbstraction took 6372.25 ms. Allocated memory is still 96.5 MB. Free memory was 68.3 MB in the beginning and 64.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:24,241 INFO L168 Benchmark]: Witness Printer took 128.83 ms. Allocated memory is still 96.5 MB. Free memory was 64.3 MB in the beginning and 52.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:43:24,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 656.57 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 39.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.23 ms. Allocated memory is still 71.3 MB. Free memory was 39.4 MB in the beginning and 36.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.06 ms. Allocated memory is still 71.3 MB. Free memory was 36.4 MB in the beginning and 53.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2127.25 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 53.5 MB in the beginning and 68.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6372.25 ms. Allocated memory is still 96.5 MB. Free memory was 68.3 MB in the beginning and 64.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. * Witness Printer took 128.83 ms. Allocated memory is still 96.5 MB. Free memory was 64.3 MB in the beginning and 52.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L436] int pumpRunning = 0; [L437] int systemActive = 1; [L685] int waterLevel = 1; [L686] int methaneLevelCritical = 0; [L779] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L855] int retValue_acc ; [L856] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] int retValue_acc ; [L907] retValue_acc = 1 [L908] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] tmp = valid_product() [L864] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L616] int splverifierCounter ; [L617] int tmp ; [L618] int tmp___0 ; [L619] int tmp___1 ; [L620] int tmp___2 ; [L623] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L625] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L627] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] tmp = __VERIFIER_nondet_int() [L635] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L703] COND TRUE waterLevel < 2 [L704] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] tmp___0 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] tmp___2 = __VERIFIER_nondet_int() [L655] COND FALSE !(\read(tmp___2)) [L661] tmp___1 = __VERIFIER_nondet_int() [L663] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L592] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L599] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L444] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L451] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L724] int retValue_acc ; [L727] retValue_acc = methaneLevelCritical [L728] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L756] int retValue_acc ; [L759] retValue_acc = waterLevel [L760] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L926] tmp___0 = getWaterLevel() [L928] COND TRUE tmp___0 == 2 [L525] int retValue_acc ; [L528] retValue_acc = pumpRunning [L529] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L930] tmp___1 = isPumpRunning() [L932] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L54] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 54]: 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: 54]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6163.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 20.2ms, AutomataDifference: 584.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 364 SDtfs, 849 SDslu, 704 SDs, 0 SdLazy, 130 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 195.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 156.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 120.0ms AutomataMinimizationTime, 5 MinimizatonAttempts, 595 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 142.8ms SsaConstructionTime, 1487.9ms SatisfiabilityAnalysisTime, 848.2ms InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 357 SizeOfPredicates, 4 NumberOfNonLiveVariables, 996 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 10:43:24,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7086e4e9-583a-4fea-bfba-2747e7d8419f/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...